Answer: You are correct
Step-by-step explanation: You are correct with both answers because 9x + 7 and 7 + 9x will equal the same thing. Here's an example
X=3
9(3) + 7
27+ 7
34
7 + 9(3)
7+27
34
34=34
It only equals 34, no matter the order. So, it has one solution.
I hope this helps!
Answer:
Equivalent
Step-by-step explanation:
The expressions 9x+7 and 7+9x are equivalent .The equation has infinite many solutions
10.9.8: coefficients and terms in a multinomial expansion. consider the product (x y z)2. if the expression is multiplied out and like terms collected, the result is: x2 y2 z2 2xy 2yz 2xz suppose we do the same to the product (v w x y z)25 (a) what is the coefficient of the term v9w2x5y7z2? (b) how many different terms are there? (two terms are the same if the degree of each variable is the same.)
The number of different terms in the expansion is (25 + 5 - 1)C(5 - 1).
To find the coefficient of the term v⁹w²x⁵y⁷z² in the multinomial expansion of (v w x y z)²⁵, we can apply the multinomial theorem. The formula for calculating the coefficient is:
Coefficient = (n!)/(a!b!c!d!e!),
where n is the total exponent of the product, and a, b, c, d, and e represent the exponents of v, w, x, y, and z, respectively.
(a) For the term v⁹w²x⁵y⁷z², we have:
n = 25 (the exponent of the product),
a = 9 (the exponent of v),
b = 2 (the exponent of w),
c = 5 (the exponent of x),
d = 7 (the exponent of y),
e = 2 (the exponent of z).
Substituting these values into the formula, we get:
Coefficient = (25!)/(9!2!5!7!2!).
(b) To determine the number of different terms in the expansion, we need to count the number of distinct combinations of exponents that can be selected for v, w, x, y, and z. Each exponent must be non-negative, and their sum should equal 25.
The number of different terms can be calculated using the stars and bars method (or the "balls and urns" method). We need to distribute 25 identical objects (stars) into 5 distinct boxes (variables), allowing some boxes to be empty. The formula for this calculation is (25 + 5 - 1)C(5 - 1).
Therefore, the number of different terms in the expansion is (25 + 5 - 1)C(5 - 1).
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PICNIC TABLE How do you know that the top of the picnic table is parallel to the ground?
Answer:
because the lines are parallel meaning they will never cross
Step-by-step explanation:
Vera and her three sisters received the same amount of money to go to the school festival. Each girl spent $12. Afterward, the girls had $24 altogether.
Which equation can be used to determine the amount of money, m, each girl received?
Multiple choice question.
Answer:
Each girl (m) had $18.
Step-by-step explanation:
They each had $18.Then, they each spent $12.So, they each have $6; 6x4 = $24 leftThe Equation to determine the amount of money, m, each girl received is 4m = 72 or m = 12(4) + 24
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
Each girl spent $12.
Afterward, the girls had $24 altogether.
let each Girl received amount of $x.
So, the four spend = 12 x 4 = $48
Then, the total they have = 48 + 24 = $72
So, each of Girl have = 72/ 4 = $18.
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Which of the type directions lie in the (110) plane? [101] [110] [o īl] (110
The type directions that lie in the (110) plane are Crystal planes are equivalent planes that represent a group of crystal planes with a common set of atomic indexes.
Crystallographers use Miller indices to identify crystallographic planes. A crystal is a three-dimensional structure with a repeating pattern of atoms or ions.In a crystal, planes of atoms, ions, or molecules are stacked in a consistent, repeating pattern. Miller indices are a mathematical way of representing these crystal planes.
Miller indices are the inverses of the fractional intercepts of a crystal plane on the three axes of a Cartesian coordinate system.Let us now determine which of the type directions lie in the (110) plane.[101] is not in the (110) plane because it has an x-intercept of 1, a y-intercept of 0, and a z-intercept of 1. So, this direction does not lie in the (110) plane.[110] is in the (110) plane since it has an x-intercept of 1, a y-intercept of 1, and a z-intercept of 0.
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WHAT IS 2 PLUS 2
WHAT IS 4 PLUS 4
Answer:
4 and 8 because that's math, theres no other answer.
Answer:
2 plus 2 is 4 and 4 plus 4 is 8
Step-by-step explanation:
What is the volume of a sphere with a radius of 60.5 ft, rounded to the nearest tenth
of a cubic foot?
Answer:
If rounded to the nearest tenth of a cubic foot, would be: 927587.2
Step-by-step explanation:
The equation of finding the equation of the volume of a sphere is "4π\(\frac{radius^{3} }{3}\)"
If values are inserted in for radius as 60.5, the answer will be 927587.2 when rounded to the nearest tenths.
Hope this helps!
In ATUV, the measure of V=90°, TU = 5.4 feet, and VT = 1.6 feet. Find the measure
of ZT to the nearest degree.
U
5.4
хо
V
1.6
Answer:
Submit Ang
Answer:73
Step-by-step explanation:
Jared bought 7 cans of paint. A can of red paint costs $3. 75. A can of red paint costs $2. 75. Jared spent $22 in all. How many cans of red and black paint did he buy?
Jared bought 7 cans of paint. Let the number of red paint cans that Jared bought be x. The number of black paint cans he bought would be 7 - x. A can of red paint costs $3.75 and a can of black paint costs $2.75.
He spent $22 in all. Therefore we can write:3.75x + 2.75(7 - x) = 22 Multiplying out the second term and collecting like terms gives:0.5x + 19.25 = 22Subtracting 19.25 from both sides:0.5x = 2.75Dividing by 0.5:x = 5.5Since Jared can't buy half a can of paint, we should round the answer to the nearest integer. Hence, he bought 5 cans of red paint and 2 cans of black paint. The total cost of the 5 cans of red paint would be 5 x $3.75 = $18.75.The total cost of the 2 cans of black paint would be 2 x $2.75 = $5.50.The total cost of all 7 cans of paint would be $18.75 + $5.50 = $24.25.We spent more than Jared's budget. The value of $24.25 exceeds Jared's budget of $22. Hence, there is a problem with this problem statement.
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Which of the following is a zero for the function f(x) = (x + 3)(x − 7)(x + 5)?
Answer:
-3, 7, -5
Step-by-step explanation:
Because of the zero-product-property, we can set each of the groupings to 0, to get each of our 3 zeroes.
x+3=0, x=-3
x-7=0, x=7
x+5=0, x=-5
what is the distance from the point (12, 14, 1) to the y-z plane?
The problem involves finding the distance from a given point (12, 14, 1) to the y-z plane. The distance can be determined by finding the perpendicular distance from the point to the plane.
The equation of the y-z plane is x = 0, as it does not depend on the x-coordinate. We need to calculate the perpendicular distance between the point and the plane.
To find the distance from the point (12, 14, 1) to the y-z plane, we can use the formula for the distance between a point and a plane. The formula states that the distance d from a point (x₀, y₀, z₀) to a plane Ax + By + Cz + D = 0 is given by the formula:
d = |Ax₀ + By₀ + Cz₀ + D| / √(A² + B² + C²)
In this case, since the equation of the y-z plane is x = 0, the values of A, B, C, and D are 1, 0, 0, and 0 respectively. Substituting these values into the formula, we can calculate the distance from the point to the y-z plane.
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What are the coordinates of point S?
(Negative three-fourths, one-half)
(Negative one-half, negative three-fourths)
(One-half, Negative three-fourths)
(Three-fourths, one-half)
Answer:
-3/4, 1/2
Step-by-step explanation:
Because the axis are split into 4ths, we can assume that each line is worth 1/4 in coordinates. S is located 3/4ths in the negative x direction and 2/4, or 1/2 in the positive y direction.
1/5 de los animales en el zoológico son monos 5/7 de los monos son machos
¿Qué fracción de los animales en el zoológico son monos machos?
1/7 of the animals in the zoo are male monkeys.
What fraction of the animals in the zoo are male monkeys? Explain with workings.
To find the fraction of animals in the zoo that are male monkeys, we have to calculate the product of the fractions representing the proportion of monkeys and the proportion of male monkeys among them.
Given that 1/5 of the animals in the zoo are monkeys, we will then represent this as:
= 1/5
= 5/25.
And 5/7 of the monkeys are male which is written as 5/7.
To get fraction of male monkeys, we will multiply these two fractions:
= (5/25) * (5/7)
= 25/175
= 1/7.
Full question:
1/5 of the animals in the zoo are monkeys 5/7 of the monkeys are male. What fraction of the animals in the zoo are male monkeys?
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in the market for a bag of socks, what happens if the price of cotton falls?
A decrease in the price of cotton can have positive effects on the affordability and availability of socks in the market, benefiting consumers by potentially offering lower prices and a wider range of choices.
If the price of cotton falls in the market for a bag of socks, it is likely to have an impact on the overall cost and availability of socks. Cotton is a common material used in the production of socks, and its price plays a significant role in determining the cost of manufacturing.
When the price of cotton falls, it reduces the cost of raw materials for sock manufacturers. As a result, manufacturers may experience lower production costs. This can lead to several outcomes:
1. Decrease in sock prices: With lower production costs, manufacturers have the option to reduce the prices of socks to attract customers. This can result in more affordable socks for consumers, making them more accessible.
2. Increase in sock supply: Lower production costs may incentivize manufacturers to increase their sock production. As a result, the supply of socks in the market could rise, leading to a greater availability of socks for consumers.
3. Potential for improved quality or additional features: Manufacturers may choose to invest the cost savings from lower cotton prices into enhancing the quality of socks or adding extra features. This can result in socks with improved durability, comfort, or design, providing more options for consumers.
It's important to note that the impact of falling cotton prices on sock prices and availability may also depend on other factors, such as production and distribution costs, market competition, and consumer demand. Additionally, the extent to which the price reduction in cotton translates into lower sock prices may vary among different brands and retailers.
Overall, a decrease in the price of cotton can have positive effects on the affordability and availability of socks in the market, benefiting consumers by potentially offering lower prices and a wider range of choices.
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Carl says triangle DEF was dilated by a scale factor of 5\2.Caroline says triangle DEF was dilated by a scale factor of 3|2Who is correct and why?
The triangles DEF are similar with D'E'F'
The bases of D'E'F' and DEF are 10 and 4 units respectively
\(\begin{gathered} \frac{D^{\prime}E^{\prime}F}{DEF}\text{ = }\frac{10}{4} \\ \Rightarrow\frac{5}{2} \end{gathered}\)Carl is correct, because when the sides of the triangle are compared , the ratio gives 5/2
Plz I need help with this ASAP
2(x-5)^2=128
This is solving quadratic functions by square roots
Answer:
x = 13 and x = -3
Step-by-step explanation:
divide each side by 2 first and get:
(x-5)² = 64
take the square root of each side next and get:
x - 5 = \(\sqrt{64}\)
x - 5 = 8 and x - 5 = -8
x = 13 and x = -3
Answer:
x = 13 and x = -13
Step-by-step explanation:
.........
True or False? These figures are similar
True. Because they have comparable angles, the offered figures are comparable figures.
What are similar figures?Similar figures are described as two shapes that share the same shape but differ in size. For instance, similar objects are depicted but are not consistent in different-sized images of a person, such as passport size, stamp size, etc. In geometry, two comparable shapes with different side lengths or sizes are those whose dimensions are equal or have a common ratio. Examples of these shapes are similar triangles, similar rectangles, and similar squares. Scale factor is the name given to the common ratio. The matching angles are also of equal measure.
If two figures are similar, then they are represented by the symbol ‘∼’. Let us say there are two triangles, ABC and PQR, which are similar, then they are represented as;
∆ABC ~ ∆ PQR
Now if the two triangles are similar to each then their corresponding sides should be in proportion. Hence,
AB/PQ = BC/QR = AC/PR
∠A = ∠P, ∠B = ∠Q, ∠C = ∠R
Since, we can see that the angles in both the given figures are exactly the same. Thus, the given figures are similar figures.
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i will give brainlist to whoever gives the correct answer please ! :)
Answer: 17 hours
Step-by-step explanation:
R=Ravi. I=Ira
R=73h
R=73(15)
I=64h
R=I
73*15=64h
64h=1095
h=17.11
h=17 hours
What is the following sum?
Question 4
A store has clearance items that have been marked down by 35%. They are having a sale, advertising an
additional 25% off clearance items. What percent of the original price do you end up paying?
The percent of the original price for the end-up paying in the given store is 0.5.
How to find the original price?The original price is calculated by
Sale price = (1 - percent off) × original price
I.e., P = (1 - d) × x
Calculation:It is given that,
discount is given as 35%
For advertising, it is given as 25% off
The discount percentage is calculated by
(1 - 35%) = 0.65
The additional payoff is calculated by
(1 - 25%) = 0.75
Then, the percent of the original price = 0.65 × 0.75 = 0.4875
On rounding off to the nearest decimal,
Percent of the original price = 0.5.
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HELP.....................
Let me first ask this :
how do u find the midnumber of 1 and 3 ?
( 1 + 3 ) ÷ 2 =
4 ÷ 2 =
2
_________________________________
It is the exact way we do to find the midpoint of a line ; have a look :
The midpoint of AB is P thus :
( Point A + Point B ) ÷ 2 = Point P
Suppose that we have point B as ( x , y ) then :
[ ( 2 , 3 ) + ( x , y ) ] ÷ 2 = ( 6 , - 1 )
Now we add the same components of points A and B together, that is, we add the first component A to the first component B and replace the first component, and so we add the second component A to the second component B. And replace the second component :
[ ( 2 + x , 3 + y ) ] ÷ 2 = ( 6 , - 1 )
( 2 + x/2 , 3 + y/2 ) = ( 6 , - 1 )
Well now we have a draw so the first components of both sides of the draw must be equal Also, the second components of the two sides of the equation must be equal , thus :
2 + x/2 = 6
Multiply both sides by 2
2 × ( 2 + x )/2 = 2 × 6
2 + x = 12
Subtract both sides 2
2 - 2 + x = 12 - 2
x = 10 &3 + y/2 = - 1
Multiply both sides by 2
2 × ( 3 + y )/2 = 2 × ( - 1 )
3 + y = - 2
Subtract both sides 3
3 - 3 + y = - 2 - 3
y = - 5________________________________
And finally, after all the hardship and misery, we realized that
B = ( 10 , - 5 )Which mean Option C is the correct answer.
And we're done...
find gcf
18x^2-3x+24x-4
Answer:
1,128 sorry I'm not sure but thank you
There were 400 sweets in a pack. The principal of a school bought 25 such packs of sweets for 2000 children o Children's Day. If each child was given 7 sweets, how many more packs of sweets were needed?
Answer:
10 more packs
Step-by-step explanation:
400 sweets bought 25 such packs = 400*25=10000
2000 each one gets 7 = 2000*7=14000
14000-10000=4000
4000/400 is 10.
So 10 more packs.
Hit the crown :D
Answer:
Step-by-step explanation:
400 sweets in a pack * 25 packs = 10,000 sweets
2000 kids * 7 sweets = 14,000
We need 4,000 more sweets. That would be 10 packs more since there are 400 sweets in a pack.
type the correct answer in the box. use numerals instead of words. the composite figure shown has a surface area of 844 square centimeters. 3-d composite shape formed by placing a rectangular pyramid over a rectangular prism that shares a common base. prism has a length of 18 centimeters, a width of 10 centimeters, and a height labeled x centimeters. height of pyramid is 12 centimeters. what is the height of the rectangular prism? the height of the prism is centimeters.
The height of the rectangular prism is 1.148 centimeters.
Let the height of the rectangular prism be y centimeters. The surface area of the composite figure is the sum of the surface areas of the rectangular prism and the rectangular pyramid.
Surface area of rectangular prism = 2lw + 2lh + 2wh
= 2(18)(10) + 2(18)(y) + 2(10)(y)
= 360 + 36y + 20y
= 360 + 56y
Surface area of rectangular pyramid = lw + (l/2)\(\sqrt{w/2^{2} +h^{2} }\)+ (w/2)\(\sqrt{l/2^{2} +h^{2} }\) + l*\(\sqrt{w/2^{2} +l/2^{2} +h^{2} }\)
= (1810)/2 + (18/2)*\(\sqrt{5^{2} +12^{2} }\)+ (10/2)\(\sqrt{9^{2} +12^{2} }\) + 18\(\sqrt{5^{2} +9^{2} +12^{2} }\)
= 90 +( 54 + 45 + 324)\(\sqrt{29}\)
= 414\(\sqrt{29}\) + 90
Therefore, the surface area of the composite figure = Surface area of the rectangular prism + Surface area of the rectangular pyramid
844 = 360 + 56y + 414\(\sqrt{29}\) + 90
Subtracting 450 from both sides and then dividing by 56, we get:
y + 15\(\sqrt{\frac{29}{2} }\) = 7
y = 1.148
Therefore, the height of the rectangular prism is approximately 1.148 centimeters when rounded to three decimal places.
Hence, the height of the rectangular prism is 1.148 centimeters.
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Answer:
Step-by-step explanation:
The height of the rectangular prism is 1.148 centimeters.
Let the height of the rectangular prism be y centimeters. The surface area of the composite figure is the sum of the surface areas of the rectangular prism and the rectangular pyramid.
Surface area of rectangular prism = 2lw + 2lh + 2wh
= 2(18)(10) + 2(18)(y) + 2(10)(y)
= 360 + 36y + 20y
= 360 + 56y
Surface area of rectangular pyramid = lw + (l/2)+ (w/2) + l*
= (1810)/2 + (18/2)*+ (10/2) + 18
= 90 +( 54 + 45 + 324)
= 414 + 90
Therefore, the surface area of the composite figure = Surface area of the rectangular prism + Surface area of the rectangular pyramid
844 = 360 + 56y + 414 + 90
Subtracting 450 from both sides and then dividing by 56, we get:
y + 15 = 7
y = 1.148
Therefore, the height of the rectangular prism is approximately 1.148 centimeters when rounded to three decimal places.
Hence, the height of the rectangular prism is 1.148 centimeters.
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19. Suppose the diameter of a circle is 10 inches long and a chord is 6 inches long, Find the distance between the chord and the center of the circle.
Answer:
10 m
Step-by-step explanation:
x2 + 242 = 262
x2 + 576 = 676
x2 = 100
x = 10
The chord is 10 m from the center of the circle.
plz help answer this and explain
thank you sooooo much
anyone else’s brainly heating up their phone like crazy
Mine is not heating up I don't know about others
Based on the family the graph below belongs to, which equation could represent the graph?
y=2^x+3
y=log(2x)+3
y=2x² +2
y=1/2x+2
Michael Phelps has been working on improving his time in the 500 yard freestyle competition.His first time was 4 minutes and 25 seconds. He improved his time by 13 seconds. The next timehe swam, he improved his time by 16 seconds. At the competition, he got his best time when heimproved by 8 more seconds. What was Michael's best swimming time?
Initial time = 4 minutes and 25 seconds
first improve = 13 seconds
second improve = 16 seconds
third improve = 8 seconds
First, we have to add all the improvements:
13+16+8 = 37 seconds
Then we have to subtract the result to the initial time:
4m 25 sec -37 sec =
Since 1 minute = 60 seconds
4 minutes x 60 = 240 seconds
240 + 25 sec = 265 seconds
4m 25 sec = 265 seconds
Back with the subtraction:
265 sec-37 sec = 228 seconds
Michaels best swimming time was 228 seconds.
To convert it into minutes:
228 /60 = 3.8 minutes
what is the p-value for a hypothesis test that μx=520?
The p-value for a hypothesis test that μx=520 is the probability of observing a sample mean as extreme or more extreme than 520, assuming that the true population mean is 520. It is calculated using the test statistic and a t-distribution or z-distribution, and is used to make a decision about the null hypothesis.
The p-value for a hypothesis test is the probability of observing a test statistic as extreme or more extreme than the one observed, assuming that the null hypothesis is true. In the case of the hypothesis test that μx=520, the p-value would be the probability of observing a sample mean as extreme or more extreme than 520, assuming that the true population mean is 520.
To calculate the p-value, we would first need to calculate the test statistic, which is the difference between the sample mean and the hypothesized population mean, divided by the standard error of the sample mean. The standard error of the sample mean is the standard deviation of the population divided by the square root of the sample size.
Once we have the test statistic, we can use a t-distribution or a z-distribution, depending on the sample size, to find the p-value. The p-value is the area in the tail of the distribution that corresponds to the test statistic.
If the p-value is less than the significance level, we would reject the null hypothesis and conclude that there is evidence to support the alternative hypothesis. If the p-value is greater than the significance level, we would fail to reject the null hypothesis and conclude that there is not enough evidence to support the alternative hypothesis.
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D.1 Give an estimate for the total volume of food and water you've ingested in the last day, in milliliters. D.2 How many times larger is the amount of blood your heart has pumped in the last day than the amount of food and drink you took in? D.3 How much error do you expect in your answer to 4 b ? You should give an quantitative response to this, but not one generated by a formula. Instead, estimate the error by examining how closely you think you know the values you estimated for food intake and blood flow. You don't need to use advanced error propagation; an approximate response is fine. D.4 What is the relevance of this calculation to the theory that all the blood that flows through your veins is generated in the liver?
An estimate for the total volume of food and water you've ingested in the last day is 3000-5000 milliliters. On average, the heart pumps about 5 liters of blood per minute. 10-20% or more error I'm expecting. Calculating heart blood volume compared to food and drink consumption is crucial for understanding circulation and liver function.
D.1 Estimating the amount of food and water consumed in a day can be difficult without specific measurements, but a rough estimate can be made based on typical intake amounts. On average, a person may consume 2-3 liters of water and 1000-2000 calories per day, resulting in an estimated total volume of 3000-5000 milliliters.
D.2 The amount of blood pumped by the heart varies from person to person and depends on factors such as heart rate and overall health. On average, the heart pumps about 5 liters of blood per minute, which is much larger than the estimated volume of food and water intake.
D.3 Estimating food and water intake and blood flow is prone to error due to variability and uncertainties in personal measurements. Individuals' habits, health, and physical activity levels can affect these estimates, potentially resulting in a significant error of 10-20% or more.
D.4 The calculation of the heart's blood volume compared to food and drink consumption is crucial for understanding the circulation system and liver role.
The liver processes nutrients, detoxifies, and produces blood components, while the heart is responsible for circulating blood throughout the body. The vast difference in volume between the two is emphasized, emphasizing the heart's crucial role in maintaining circulation.
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