Answer:
point a is located Quadrant11
Step-by-step explanation:
Answer:
Need picture to give correct quadrant
Step-by-step explanation:
Use substitution to solve the system. y = 2x +1 3x-2y = -4 what does x and y equal?
Answer:
x =2
y = 5
Explanation:
Given the system of equations:
\(\begin{gathered} y=2x+1\ldots\ldots\ldots....\ldots\ldots.\ldots\ldots\ldots\ldots..(1) \\ \\ 3x-2y=-4\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots\ldots(2) \end{gathered}\)Substitute the expression for y in equation (1) into equation (2)
\(\begin{gathered} 3x-2(2x+1)=-4 \\ \\ 3x-4x-2=-4 \\ \\ -x-2=-4 \end{gathered}\)Multiply both sides of the equation by -1
\(x+2=4\)Subtract 2 from both sides of the equation
\(\begin{gathered} x+2-2=4-2 \\ \\ x=2 \end{gathered}\)Substitute x = 2 into equation (1)
\(\begin{gathered} y=2(2)+1 \\ =4+1 \\ =5 \end{gathered}\)Therefore,
x = 2, and y = 5
Which statement about y=x^2-12x+35 is true?
A. The zeros are 7 and 5, because y=(x-7)(x-5)
B. The zeros are 7 and -5, because y=(x+7)(x-5)
c. The zeros are -7 and -5, because y=(x+7)(x+5)
D. The zeros are -7 and -5, because y=(x-7)(x-5)
Answer:The zeros are 7 and 5, because y=(x-7)(x-5)
Step-by-step explanation:
A contractor better job at $750 for materials plus $43 per hour for labor. The total cost for the job can be modeled by C= 43H+ 750$.
Find the number of hours that he has for the job if the owner would like the total cost to be under $2000, rounded to the nearest hour.
The contractor has a maximum of 29 hours (rounded down) to complete the job while keeping the total cost under $2000.
To find the number of hours the contractor has for the job while keeping the total cost under $2000, we can use the given cost model equation: C = 43H + 750.
Since the owner wants the total cost to be under $2000, we can set up the inequality:
43H + 750 < 2000
Now, let's solve this inequality for H, the number of hours:
43H < 2000 - 750
43H < 1250
Dividing both sides of the inequality by 43:
H < 1250/43
To determine the maximum number of hours the contractor has for the job, we need to round down the result to the nearest whole number since the contractor cannot work a fraction of an hour.
Using a calculator, we find that 1250 divided by 43 is approximately 29.07. Rounding down to the nearest whole number, we get:
H < 29
Using the cost model equation C = 43H + 750, where C represents the total cost and H represents the number of hours, we set up the inequality 43H + 750 < 2000 to satisfy the owner's requirement of a total cost under $2000.
By solving the inequality and rounding down to the nearest whole number, we find that the contractor has a maximum of 29 hours to complete the job within the specified cost limit.
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Find the mean, median, mode 1. 40, 38,29,34,37, 22, 15, 38 2. 26, 32, 12, 18, 11, 14, 21, 12,27 3. 3,3,4,7,5,7,6,7,8,8,8. 9,8, 10, 12, 9, 15, 15
NEED THE ANSWER ASAP
NONSENSE, REPORT
i will (brainliest) if it's correct!!!
Mean: 34.125, Median: 31.5, Mode: 38
Mean: 19.222, Median: 18, No mode
Mean: 8.611, Median: 8, Mode: 8
Let's find the mean, median, and mode for each set of numbers:
Set: 40, 38, 29, 34, 37, 22, 15, 38
Mean: To find the mean, we sum up all the numbers and divide by the total count:
Mean = (40 + 38 + 29 + 34 + 37 + 22 + 15 + 38) / 8 = 273 / 8 = 34.125
Median: To find the median, we arrange the numbers in ascending order and find the middle value:
Arranged set: 15, 22, 29, 34, 37, 38, 38, 40
Median = (29 + 34) / 2 = 63 / 2 = 31.5
Mode: The mode is the number(s) that appear(s) most frequently in the set:
Mode = 38 (appears twice)
Set: 26, 32, 12, 18, 11, 14, 21, 12, 27
Mean: Mean = (26 + 32 + 12 + 18 + 11 + 14 + 21 + 12 + 27) / 9 = 173 / 9 ≈ 19.222
Median: Arranged set: 11, 12, 12, 14, 18, 21, 26, 27, 32
Median = 18
Mode: No mode (all numbers appear only once)
Set: 3, 3, 4, 7, 5, 7, 6, 7, 8, 8, 8, 9, 8, 10, 12, 9, 15, 15
Mean: Mean = (3 + 3 + 4 + 7 + 5 + 7 + 6 + 7 + 8 + 8 + 8 + 9 + 8 + 10 + 12 + 9 + 15 + 15) / 18 ≈ 8.611
Median: Arranged set: 3, 3, 4, 5, 6, 7, 7, 7, 8, 8, 8, 8, 9, 9, 10, 12, 15, 15
Median = 8
Mode: Mode = 8 (appears 4 times)
Mean: 34.125, Median: 31.5, Mode: 38
Mean: 19.222, Median: 18, No mode
Mean: 8.611, Median: 8, Mode: 8
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help with both for brainiest plz
Answer:
1. (3,0)
2. 3 miles
Step-by-step explanation:
1. You can use any online coordinate plane or make one yourself on graph paper) graph each point on the coordinate plane you will see the diagonal line segment that is forming. connect the points on the graph. From that, you can see they are 2 squares away so just count down 2.
2. Again, graph the points on a coordinate plane and you can count each grid box until you count 3 boxes right on the axis and 1 grid= 1 mile 3 grids= 3 miles
Suppose that 10 computer chips are randomly selected from a large shipment. If 95% of the computer chips work properly, and each chip works independently of one another, what is the probability that at least 8 of the chips work?
The probability that at least 8 out of the 10 chips work properly is 0.2614, or 26.14%.
Given:
number of chips selected = 10
probability of a chip working= 0.95
The probability of getting exactly k successes in n trials with a success probability p is given by the formula:
\(P(X = k) =\) \({\text} ^nC_k p^k (1 - p)^{(n - k)\)
Now, the probability
P(X ≥ 8) = P(X = 8) + P(X = 9) + P(X = 10)
\(P(X = k) =\) \({\text} ^{10}C_k (0.95)^k (1 - 0.95)^{(10 - k)\)
So, P(X = 8) = \(^{10}C_8 (0.95)^8(1-0.95)^{10-8}\)
= \((45) (0.95)^8 (0.05)^2\)
= 0.2753
and, P(X = 9) = \(^{10}C_9 (0.95)^9(1-0.95)^{10-9}\)
= \((10) * (0.95)^9 * (0.05)^1\)
= 0.3874
P(X = 10) = \(^{10}C_{10} (0.95)^{10}(1-0.95)^{10-10}\)
= \((1) * (0.95)^{10} * (0.05)^0\)
= 0.5987
Finally, sum up these probabilities to get the desired result:
P(X ≥ 8) = P(X = 8) + P(X = 9) + P(X = 10)
= 0.2753 + 0.3874 + 0.5987
= 0.2614
Therefore, the probability is 0.2614.
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Use the information to answer the question. The table shows the amount of lemon juice and water that 4 students mix. Student Luca Kal Jenna Micah Lemon Juice Water (fluid ounces) (fluid ounces) 2 6 4 6 10 8 9 B Which two students mix the same ratio of lemon juice to water? Choose two students to show the answer.
The two students that mix the same ratio of juice to water is given as follows:
A. Luca.
D. Micah.
How to obtain the ratio between two amounts?The ratio between two amounts a and b is given as follows:
a to b.
Which is also the division of the two amounts.
Hence the ratio of juice to water for each person is given as follows:
Luca: 2/6 = 1/3.Kal: 6/10 = 3/5.Jenna: 4/8 = 1/2.Micah: 3/9 = 1/3.Hence Luca and Micah used the same ratio, meaning that options A and D are correct.
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What is , Pd?
24
4
1
16
Can someone help me Solve:
-2√3+√75=
Answer:
\(3\sqrt{3}\)------------------
Simplify in below steps:
\(-2\sqrt{3} +\sqrt{75} =\)\(-2\sqrt{3} +\sqrt{25*3} =\)\(-2\sqrt{3} +\sqrt{5^2*3} =\)\(-2\sqrt{3} +5\sqrt{3} =\)\(3\sqrt{3}\)What is the value of x? Round to the nearest hundredth.
The value of x using trigonometric functions will be 5.66.
What are trigonometric functions?
Trigonometric functions are also known as Circular Functions can be simply defined as the functions of an angle of a triangle. It means that the relationship between the angles and sides of a triangle are given by these trigonometric functions. The basic trigonometric functions are sine, cosine, tangent, cotangent, secant and cosecant.
The angles of sine, cosine, and tangent are the primary classification of functions of trigonometry. And the three functions which are cotangent, secant and cosecant can be derived from the primary functions
Now,
In given triangle, 3rd angle will be 54 degree.
(Sum of all angle in triangle=180degree)
Therefore
sin 54=P/H (P=Perpendicular, H=Hypotenuse)
0.809=x/7
x=7*0.809
x=5.66
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1. Jeremy has $12000 cash to invest in the bank compounded at 4% interest annually.
a.
What equation will calculate the value in x years? y =
Answer:
\(A(x) = 12000(1.04)^x\)
Step-by-step explanation:
Compound interest:
The compound interest formula is given by:
\(A(t) = P(1 + \frac{r}{n})^{nt}\)
Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.
$12000 cash
This means that \(P = 12000\)
Compounded at 4% interest annually.
This means that \(r = 0.04, n = 1\)
What equation will calculate the value in x years?
\(A(t) = P(1 + \frac{r}{n})^{nt}\)
\(A(x) = P(1 + \frac{r}{n})^{nx}\)
\(A(x) = 12000(1 + 0.04)^x\)
\(A(x) = 12000(1.04)^x\)
9. Apply Math Models A landscaper is planning a rectangle shaped flower garden
with an area given by the expression 4p² + 12p square yards. Draw one possible design
for the flower garden and label the dimensions for the length and width.
Answer:
Hope this helps ;) don't forget to rate this answer !
Step-by-step explanation:
The area of a rectangle is given by the formula A = lw, where l is the length of the rectangle and w is the width. Therefore, to find the dimensions of the rectangle, we can set up the equation 4p² + 12p = lw.
To solve this equation, we can first distribute the 4p² on the left side of the equation to get 4p² + 12p = 4p²l + 12pw. Then, we can rearrange the terms to get 12pw - 4p²l = 0.
To solve this equation for w, we can divide both sides by 4p(p - l), which gives us w = 3l/4p.
Therefore, the dimensions of the rectangle are l and 3l/4p. You can choose any value for l and then use the equation above to find the corresponding value for w. For example, if you choose l = 4, then w = 3(4)/4p = 3/p.
To draw, first, decide on a value for the length of the rectangle, l. Then, use the equation w = 3l/4p to calculate the corresponding value for the width of the rectangle, w.
Next, use the ruler or straight edge to draw two straight lines that are perpendicular to each other, forming the sides of the rectangle. The length of the rectangle should be equal to l, and the width of the rectangle should be equal to w. Make sure to label the length and width on your drawing.
the opposite number of 1/2
Answer:
0.5?
Step-by-step explanation:
For each of the 4 walls of the house, John will need 9 large
planks of wood. If each plank of wood needs 8 pieces of nails
to be secured, how many nails does John need for each wall
of the house?
6. Solve for x. Round to the nearest hundredth if necessary.
34.28
10.53
21.72
39.19
The value of x was found to be 34.28.
What is Trigonometric Functions?
Trigonometry uses six fundamental trigonometric operations. Trigonometric ratios describe these operations. The sine function, cosine function, secant function, co-secant function, tangent function, and co-tangent function are the six fundamental trigonometric functions. The ratio of sides of a right-angled triangle is the basis for trigonometric functions and identities. Using trigonometric formulas, the sine, cosine, tangent, secant, and cotangent values are calculated for the perpendicular side, hypotenuse, and base of a right triangle.
Given the base of the triangle is x
The perpendicular = 19
So we can write tan(29°) = 19 / x
x = 19 / tan(29°)
x = 19/0.55
x=34.28
Hence the value of x was found to be 34.28.
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Answer:
34.28
Step-by-step explanation:
The value of x was found to be 34.28.
What is Trigonometric Functions?
Trigonometry uses six fundamental trigonometric operations. Trigonometric ratios describe these operations. The sine function, cosine function, secant function, co-secant function, tangent function, and co-tangent function are the six fundamental trigonometric functions. The ratio of sides of a right-angled triangle is the basis for trigonometric functions and identities. Using trigonometric formulas, the sine, cosine, tangent, secant, and cotangent values are calculated for the perpendicular side, hypotenuse, and base of a right triangle.
Given the base of the triangle is x
The perpendicular = 19
So we can write tan(29°) = 19 / x
x = 19 / tan(29°)
x = 19/0.55
x=34.28
Hence the value of x was found to be 34.28.
Which of these is the correct ratio of strawberries to blueberries for the fruit salad?
A. 8 strawberries: 30 blueberries
B. 8 strawberries: 8 blueberries
C. 4 strawberries: 30 blueberries
D. 32 strawberries: 30 blueberries
The ratio of the strawberries to the blueberries is 32 strawberries: 30 blueberries (option d).
What is the ratio?
Ratio expresses the relationship between two or more numbers. It shows the frequency of the number of times that one value is contained within other value(s). The sign that is used to represent ratio is :.
The ratio of strawberries to blueberries - total number of strawberries : total number of blueberries.
(8 x 4) : 30
32 : 30
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Answer: A. 8 strawberries: 30 blueberries
Step-by-step explanation:
20 points!! what is m∠A?
The unknown angle of the triangle is 58 degrees.
How to find the angle of a triangle?A triangle is a polygon with three sides. The sum of angles in a triangle is 180 degrees.
Therefore, the unknown angle can be found using the external angle theorem.
The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the measures of the two remote interior angles of the triangle
Hence,
138 = x + 80
x = 138 - 80
x = 58 degrees
Therefore, the unknown angle is 58 degrees.
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A sub sandwich shop offers 12 toppings to choose from. How many ways could a person choose a 4-topping sandwich?
HELPPPPPP
Using the combination formula, it is found that there are 495 ways to choose a 4-topping sandwich.
The order in which the toppings are chosen is not important, hence the combination formula is used to solve this question.
What is the combination formula?\(C_{n,x}\) is the number of different combinations of x objects from a set of n elements, given by:
\(C_{n,x} = \frac{n!}{x!(n-x)!}\)
4 toppings are chosen from a set of 12, hence the number of ways is given by:
\(C_{12,4} = \frac{12!}{4!8!} = 495\)
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This simple question does not require any statistical calculations, only statistical knowledge. The showerhead heights at a men’s athletic locker room were designed to be 72 inches which is well above the mean height of 69.5”. The heights of the athletes are normally distributed. From the choices listed below, which is more likely to be true: a, b or c?
a.The mean height for a randomly selected sample of 20 players is more than 72 inches.
b.The height of one randomly selected player is more than 72 inches.
c.Both a and b are equally likely.
Why? (Justify your answer with a short answer.)
That both a and b are equally likely, is also not true since the Probability of option b is higher than that of option a.
Option b is more likely to be true. This is because the given information states that the showerhead heights were designed to be 72 inches, which is well above the mean height of 69.5 inches. Therefore, it is reasonable to assume that the majority of the players' heights are below 72 inches. Since the heights of the athletes are normally distributed, the probability of selecting a player at random with a height above 72 inches is relatively low. On the other hand, option a suggests that the mean height of a sample of 20 players is more than 72 inches, which is less likely than option b. Option c, which suggests that both a and b are equally likely, is also not true since the probability of option b is higher than that of option a.
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Given the graph of f (x), determine the domain of f –1(x).
Radical function f of x that increases from the point negative 3 comma negative 2 and passes through the points 1 comma 0 and 6 comma 1
The domain of the function f(x) that has a range of [-2, ∞) is [-2, ∞)
What is the inverse of a function?The inverse of a function that maps x into y, maps y into x.
The given coordinates of the points on the radical function, f(x) are; (-3, -2), (1, 0), (6, 1)
To determine the domain of
\( {f}^{ - 1}( x)\)
The graph of the inverse of a function is given by the reflection of the graph of the function across the line y = x
The reflection of the point (x, y) across the line y = x, gives the point (y, x)
The points on the graph of the inverse of the function, f(x), \( {f}^{ - 1} (x)\) are therefore;
\(( - 3, \: - 2) \: \underrightarrow{R_{(y=x)}} \: ( - 2, \: - 3)\)
\(( 1, \: 0) \: \underrightarrow{R_{(y=x)}} \: ( 0, \: 1)\)
( 6, \: 1) \: \underrightarrow{R_{(y=x)}} \: ( 1, \: 6)
The coordinates of the points on the graph of the inverse of the function, f(x) are; (-2, -3), (1, 0), (1, 6)
Given that the coordinate of point (x, y) on the image of the inverse function is (y, x), and that the graph of the function, f(x) starts at the point (-3, -2) and is increasing to infinity, (∞, ∞), such that the range of y–values is [-2, ∞) the inverse function, \( {f}^{ - 1}( x)\), which starts at the point (-2, -3) continues to infinity, has a domain that is the same as the range of f(x), which gives;
The domain of the inverse of the function, \( {f}^{ - 1}( x)\), using interval notation is; [-2, ∞)
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is -6.75 greater than or lass than -5.00
Answer:
Less than
Step-by-step explanation:
since the value is negative, it will be less than -5.00
if it was positive 6.75 then it would be positive but in this case it is going to be negative
f(x) = 3x - 7 and g(x) = -2x -6Find (f o g)(4) (see image)I need to understand the step by step steps for how to solve this problem
Composition of functions:
\((f\circ g)(x)=f(g(x))\)1. Find (fog)(x): Substitute the imputs (x-values) in f for function g:
\((f\circ g)(x)=3(-2x-6)-7\)2. Simplify:
\(\begin{gathered} (f\circ g)(x)=-6x-18-7 \\ (f\circ g)(x)=-6x-25 \end{gathered}\)3. Find (fog)(4). Evaluate the fucntion (fog) when x=4:
\(\begin{gathered} (f\circ g)(4)=-6(4)-25 \\ (f\circ g)(4)=-24-25 \\ (f\circ g)(4)=-49 \end{gathered}\)Then, (fog)(4) is:\((f\circ g)(4)=-49\)find the midpoint of the line segment from (4,0) to (1,3)
midpoint=
The coordinates of the midpoint of the line segment are (3, 5).
According to the section formula-
If a point (x , y) divides a line in the ratio of m : n, where the two endpoints of the line are (x1, y1) and (x2, y2), then-
x = (nx1 + mx2)/ (m + n)
and y = (ny1 + my2)/ (m + n)
Here, the endpoints are given as (4,0) and (1,3)
Therefore,
x1 = 4, y1 = 0
x2 = 1, y2 = 3
Since, midpoint divides a line segment into two equal halves, the ratio m : n = 1 : 1
Now, substituting the values in the section formula we get-
x = (4 + 1)/2
x = 5/2
x = 2.5
y = (0 + 3)/2
y = 3/2
y = 1.5
Thus, the coordinates of the midpoint are (2.5, 1.5).
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7th- Grade question is super easy trust me
8. A bottle contained 3 7/12 cups of juice. Then Mark drank 1 1/6 cups of the
juice. How much juice was left in the bottle?
A. 2 1/12 cups
B. 2 1/6 cups
C. 2 5/12 cups
D. 2 5/6 cups
Answer:
C
Step-by-step explanation:
3 7/12 - 1 1/6
1. Change 1 1/6 into the same denominator as 3 7/12.
3 7/12 - 1 2/12
2. Subtract whole numbers.
3 - 1 = 2
3. Subtract the fractions.
7/12 - 2/12 = 5/12
4. Answer is 2 5/12 (C).
hope this helps :)
Brenda’s school is selling tickets to a spring musical. On the first day of ticket sales the school sold 6 adult tickets and 9 child tickets for a total of $108. The school took in $111 on the second day by selling 9 adult tickets and 5 child tickets. What is the price of each type of ticket?
Answer:
42 dollars
Step-by-step explanation:
How many times can a paper be folded to reach the moon
Answer:
42 folds. This fact is mentioned in search results [1], [2], [3], [4], [5], and [7]. It is also noted in search result [6] that the answer may be 45 folds instead of 42, but this is in the context of a discussion on exponential growth and is not a commonly accepted answer to the question. Finally, search result [10] poses a similar question but provides the same answer of 42 folds to reach the moon.
Step-by-step explanation:
the amount of pollutants that are found in waterways near large cities is normally distributed with mean 8.5 ppm and standard deviation 1.4ppm
18 randomly selected large cities are studied
The probability that the average amount of pollutants is more than 9 ppm is 28.1%.
How to calculate the probabilityThe distribution of the average amount of pollutants for 18 randomly selected cities is normal with mean 8.5 ppm and standard deviation 1.4 ppm / 18 = 0.081 ppm.
The probability that the average amount of pollutants is more than 9 ppm is:
1 - P(Z < (9 - 8.5) / 0.081)
= 1 - P(Z < 0.588) = 1 - 0.719
= 0.281
Therefore, the probability that the average amount of pollutants is more than 9 ppm is 28.1%.
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The amount of pollutants that are found in waterways near large cities is normally distributed with mean 8.5 ppm and standard deviation 1.4 ppm. 18 randomly selected large cities are studied. Round all answers to two decimal places.
For the 18 cities, find the probability that the average amount of pollutants is more than 9 ppm.
.In a different biology lab, a population of single-cell parasites also reproduces hourly. An equation which gives the number of parasites, , after hours is Explain what the numbers 100 and 3 mean in this situation.
Answer: p=50 h=2
Step-by-step explanation:
so its 50 x 2=100 is the answer then u add 3
12. The expression x ^ 2 + 2x - 15 can be written in factored form as (x - 3)(x + m) where m represents a numberWhat is the value of m
Answer:
m = 5
Step-by-step explanation:
A quadratic function is in the form \(ax^{2} +bx+c\).
To factor an equation, you are looking for two numbers that multiply to c (are factors of c), and add to b. In this case, c = -15, and b = 2.
The factors of -15 include 1, 3, 5, 15, -1, -3, -5, and -15.
After looking through the possible combinations, we can come to the conclusion that the only factors that multiply to -15 and add to 2 are 5 and -3, as 5 x -3 = -15, and 5 + -3 = 2.
You can now plug these numbers into the factored form (x + factor1)(x + factor2).
This then becomes (x + -3)(x + 5) or (x - 3)(x + 5).
Therefore, m = 5.
320 percent of 360 is what ?
Answer:
Step-by-step explanation:
320% 360 = ?
320/100 * 360 =
3.2*360 = 1152