Answer:
11/8 or, 1 and 3/8
Step-by-step explanation:
First, we have to make both the denominators the same. In this case, we can multiply 3/4 by 2, to make 4, the denominator, into 8. What we do to the denominator, we must do to the numerator! So, we multiply 3 by 2, and get 6!
Now we have, 5/8 + 6/8, which equals 11/8! Which can also be simplified to 1 and 3/8 (because the numerator is larger than the denominator)
Hope this helps! :)
what is 9x + 2 plllssssss hlp
Here we have an algebraic expression, where the variable is x.
What is 9x + 2?We define a mathematical expression as finite combination of numbers, variables, and operations.
Particularly, here we have the product between 9 and x (a variable) and we add 2 to that product.
And depending on the value that we choose for x, the value of the expression will be different, so this is called an "algebraic expression".
That depends on the variable x.
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SAT test scores are normally distributed with a mean of 500 and a standard deviation of 100. Find the probability that a randomly chosen test-taker will score between 470 and 530. (Round your answer to four decimal places.)
The probability that a randomly chosen test-taker will score between 470 and 530 is 0.2358 (or 23.58% when expressed as a percentage).
To solve this problem, we need to use the standard normal distribution formula:
Z = (X - μ) / σ
where Z is the standard score (z-score) of a given value X, μ is the mean, and σ is the standard deviation.
First, we need to convert the given values of 470 and 530 to z-scores:
Z1 = (470 - 500) / 100 = -0.3
Z2 = (530 - 500) / 100 = 0.3
Next, we need to find the probability that a randomly chosen test-taker will score between these two z-scores.
We can use a standard normal distribution table or a calculator to find the area under the curve between -0.3 and 0.3.
Using a calculator or an online tool, we find that the area under the curve between -0.3 and 0.3 is approximately 0.2358.
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At the snack bar, hot dogs cost $4 each and bottled water costs $2 each. In the first business hour of the day, less than $12 worth of hot dogs and water were sold.
Which are reasonable solutions for this situation if x represents the number of hot dogs sold and y represents the number of bottles of water sold? Check all that apply.
(–1, 5)
(0, 6)
(2, 1)
(1, 1.5)
(1, 3)
(2, 2)
Answer: (2,1) (1,3)
Step-by-step explanation:
Answer:
Its C and E
Step-by-step explanation:
I got it right
What's 7.778 to the nearest hundred
Answer:
7.78
Step-by-step explanation:
Answer:
The answer is 7.78
Step-by-step explanation:
I had this on a test and got it correct
MARK THE BRAINLIEST PLEASEEE
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given that f (x) = x squared + 17x + 72 and g(x) = x + 9 find f (x)-g (x)and express the result in standard form
Given the functions:
\(f(x)=x^2+17x+72\)\(g(x)=x+9\)You have to subtract the functions:
\(f(x)-g(x)\)\((x^2+17x+72)-(x+9)\)Note that I wrote both functions in parentheses separated by the minus sign. For the seconf term, the minus sign is as if the parenthesis is being multiplied by -1, the sign of both x and 9 is inverted:
\(x^2+17x+72-x-9\)Order the like terms
\(x^2+17x-x+72-9\)And simplify
\(x^2+16x+63\)So the result in standard form is
\(f(x)-g(x)=x^2+16x+63\)Find the perimeter and area
Answer:
perimeter = 14
area = 6
Step-by-step explanation:
p = 4 + 3 + 7
a = L × w
2
Perimeter: 14m²n²cm
Area: 28m²n²
Explanation step bye step Given Data:height: 4m²
length: 7mn²
base: 3mn²
To Find:Perimeter =?
Area=?
Formula:Perimeter: a + b + c
Area: length × height
SolutionPerimeter: a+b+c
= 4m²+7mn²+3mn²
= 14m²n² cm
Area: l×h
= 4m²×7mn²
= 28m²n²
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Given the table below, write a linear equation that defines the dependent variable, p, in terms of the independent variable, t.
t
p
0
4
1
7
2
10
3
13
Show your work here
Enter your answer
Given the table below, write a linear equation that defines the dependent variable, p, in terms of the independent variable, t.
t. P
0. 4
1 7
2 10
3 13
Show your work here
Enter your answer
The required linear equation that defines the dependent variable, p, in terms of the independent variable, t is p = 3t + 4.
Explain linear equation?A linear equation is a mathematical condition of the structure y=mx+b. including just a steady and a first-request (straight) term, where m is the slant and b is the y-catch. Sometimes, the above is known as a "straight condition of two factors," where y and x are the factors.
According to question:Let linear equation be p = at + b
Where a and b are constant.
On putting the values from the table,
4 = 0×a + b
b = 4
and,
7 = 1×a + b ⇒ a + b = 7
a + 4 = 7
a = 3
Then,
p = 3t + 4
Thus, required equation is p = 3t + 4.
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find the value of a and b in parallelogram WXYZ
opposit side of parallelogram are equal and opposit angles are also equal
PLZ ANSWER ASAP
Which equation represents a direct variation?
y = 0.5 x
x - y = 5
xy = 5
y = x + 5
Answer:
a
Step-by-step explanation:
Answer:
y = 0.5 x equation represents a direct variation
In trapezoid ABCD below, angles B and C are right angles.
(a) Circle the two sides from the four choices below that are parallel.
AB
BC
CD
DA
b) Find the area of the right trapezoid by breaking it
into a rectangle and right triangle and summing
their areas.
Rectangle:
Sum of areas:
Right Triangle:
D
24 cm
A
6 cm B
16 cm
C
The parallel sides are AB and CD while the area of the Trapezium is 240cm²
A.)
Parallel sides are directly opposite one another and their lines never meet. lines AB and CD.
Therefore, the two parallel sides are AB and CD
B.)
Area of Trapezium = Area of Rectangle + Area of Triangle
Area of rectangle = Length * width
Area of rectangle = 6 * 16 = 96 cm²
Area of Triangle = 1/2*base*height
Area of Triangle= 1/2 * 18 * 16
Area of Triangle = 144 cm²
Hence, area of Trapezium is 240 cm²
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The sales representative went to made a deal with the schools for a discount on the individual juice bottles the company usually sells the bottles to the distributors for $2.25 but they are selling them to the schools for 15% off for what price will they sell each bottle to the school?
Answer:
$1.91 per bottle :)
Step-by-step explanation:
Which transformation produces shapes that are not congruent?
Dilation and rotation transformation produces shapes that are not congruent.
Rotations, reflections and translations are known as rigid transformations; this means they do not change the size or shape of a figure, they simply move it. These rigid transformations preserve congruence.
Dilation, however, are not rigid transformations, since they change the size of a shape. Dilation would not change the shape, just the size; the angle measures would be the same, and the ratio of corresponding sides would be equal to the scale factor used in the dilation. This would give us a similar, but not congruent, figure.
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If there are 32 students in the class and two teachers, how many feet are there?
Answer: 68
Step-by-step explanation: 32 + 2=34 34*2 + 68 2 because a person naturaly has 2 feets
im cant figure out how to do this one ((-3)^2)^-3
Answer:
\(\dfrac{1}{729}\)
Step-by-step explanation:
\(\left(\dfrac{}{}(-3)^2\dfrac{}{}\right)^{-3}\)
First, we should evaluate inside the large parentheses:
\((-3)^2 = (-3)\cdot (-3) = 9\)
We know that a number to a positive exponent is equal to the base number multiplied by itself as many times as the exponent. For example,
\(4^3 = 4 \, \cdot\, 4\, \cdot \,4\)
↑1 ↑2 ↑3 times because the exponent is 3
Next, we can put the value 9 into where \((-3)^2\) was originally:
\((9)^{-3}\)
We know that a number to a negative power is equal to 1 divided by that number to the absolute value of that negative power. For example,
\(3^{-2} = \dfrac{1}{3^2} = \dfrac{1}{3\cdot 3} = \dfrac{1}{9}\)
Finally, we can apply this principle to the \(9^{-3}\):
\(9^{-3} = \dfrac{1}{9^3} = \boxed{\dfrac{1}{729}}\)
15 men produce 500 watches in 15 working days. How long would it take 45 men to produce 500
watches?
Answer:
It would take 45 men 5 days to make 500 watches.
Explanation.
for 15 men it takes 15 days.
but if you have 45 men. that is 3x the amount of men.
they will be able to make watches 3 times faster.
just believe me its the right answer.
Please Vote Me Brainliest. Thank You.
(Assuming every single man has the same working rate.)
Solution 1 :
If there is 45 men working, there will be 45 : 15 = 3 times as much men.
So, the amount of time taken will be reduced by 3 times.
=> It will take 15 : 3 = 5 days for 45 men to produce 500 watches.
Solution 2 :
15 men produce 500 watches in 15 days -> If there is only 1 man, it will take 15 x 15 = 225 (days).
If there is 45 men, the amount of time will reduce by 45 times.
So, it will take 225 : 45 = 5 days for 45 men to produce 500 watches.
I have like two more I don't understand, I'm in 4th and on my sisters account and I was sick while learning this so I don't know how please help will mark brainliest
1 1/2 x 12
Key: Keep, change, flip.
So 1 1/2 you have to make it into a improper fraction.
1 1/2 to 3/2 x 12/1 = 3/2 x 1/12 = 1/2 x 1/4 = 1/8
Hope this answer helps :)
what are all the values of c that will make x^2 cx 121 a perfect square ?
Answer:
c = -22, 22
Step-by-step explanation:
\( {(x - 11)}^{2} = {x}^{2} - 22x + 121\)
\( {(x + 11)}^{2} = {x}^{2} + 22x + 121\)
Write down the ratio of 220kg to 5kg give your answer in its simplest form?
Answer:
44:1
Step-by-step explanation:
220:5
44:1
divide by 5 each side
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point s has coordinates 2,5 if you rotate point s 90 degrees about the origin 0,0 what are the coordinates of s
6th grade math i mark as brainliest
sorry if you mind but why are you posting all questions here . where are you from
Answer:
Option B) 16 × 9
Option D) 2×2×2×2×3×3
...both are the correct answers.
I Need help with this please
Suppose that $2000 is invested at a rate of 3.6%, compounded monthly. Assuming that no withdrawals are made, find the total amount after 7 years.
Answer:
$2572.22
Step-by-step explanation:
You want the value of an investment of $2000 after 7 years when it earns interest at 3.6% compounded monthly.
Compound interestThe formula for the account value earning compound interest is ...
A = P(1 +r/n)^(n·t)
ApplicationYou have P=2000, r=0.036, n=12, t=7, so the account value is ...
A = $2000(1 +0.036/12)^(12·7) ≈ $2572.22
Inessa is making ice tea. She has ice cubes which she uses to cool the ice tea. Each ice cube lowers the temperature of the liquid by 2° F. She adds 6 ice cubes to the tea. What integer represents the change in temperature of the ice tea?
Answer:
-12
Step-by-step explanation:
6 times -2 is -12.
_____
"Lowers by 2°" can be represented by an integer of -2.
The function g(x) is a transformation of the cube root parent function,
f(x) = V. What function is g(x)?
9(x)
70%)
A g(x) - 4+3
(B. (r) Var43
O c. g(x) - V-3+4
D. g(x)= x + 3+ 4.
Answer:
g(x)= -v-3+4
Step-by-step explanation:
what life was like in the time of
9. Find the sum of the expressions
(-4.25x + 9) and (8x - 2.2). Select all
of the statements that are true.
The coefficient of x is 3.75.
The coefficient of x is 4.75.
The constant is 11.2.
The constant is 6.8.
The sum is 3.75x + 6.8.
The sum is 4.75x + 11.2.
The sum of the expression is 3.5x+6.8.
Given that are two expressions, we need to find the sum of the expressions,
The expression is a mathematical statement which is constructed by putting arithmetical operations, variables and numbers together.
So, finding the sum.
(-4.25x + 9) and (8x - 2.2)
Putting the sign of addition,
= (-4.25x + 9) + (8x - 2.2)
Opening the brackets,
= -4.5x + 9 + 8x - 2.2
Combining the like terms.
= 8x-4.5x + 9-2.2
Operating the like terms,
= 3.5x+6.8
Hence, the sum of the expression is 3.5x+6.8.
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The Picture below is the question
Answer:
Step-by-step explanation:
You had the first part of the first question correct. The answer is 100:64
The sides of the squares
Area of e = 69% more than area of area of f
e^2: f^2 = ( 1 + 69/100 ) / 1
e^2 : f^2 = (1.69)/1 Take the square root of both sides
e:f = 1.3:1
Write about the difference between monomials,
binomials, and trinomials
Answer:
The relationship between these terms may be sums or difference. You call an expression with a single term a monomial, an expression with two terms is a binomial, and an expression with three terms is a trinomial. An expression with more than three terms is named simply by its number of terms. Plz give brainiest
Step-by-step explanation:
true or false
If E and F are independent events, then Pr(E|F ) = Pr(E).
False. If E and F are independent events, then Pr(E|F) is not necessarily equal to Pr(E).
The probability of an event E given event F, denoted as Pr(E|F), represents the probability of event E occurring given that event F has already occurred. In the case of independent events, the occurrence of one event does not affect the probability of the other event occurring.
By definition, two events E and F are independent if and only if Pr(E ∩ F) = Pr(E) × Pr(F), where Pr(E ∩ F) represents the probability of both events E and F occurring.
Now, let's consider the statement that Pr(E|F) = Pr(E) when E and F are independent events. This implies that the probability of event E occurring given that event F has occurred is the same as the probability of event E occurring without any knowledge of event F.
However, this is not necessarily true. The conditional probability Pr(E|F) takes into account the occurrence of event F, which may affect the probability of event E. Even if events E and F are independent, the value of Pr(E|F) may differ from Pr(E) if the occurrence of event F provides additional information or changes the probability distribution of event E.
The statement "Pr(E|F) = Pr(E)" when E and F are independent events is false. While independence between events E and F ensures that the occurrence of one event does not affect the probability of the other event, it does not guarantee that the conditional probability Pr(E|F) will be equal to the unconditional probability Pr(E).
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4
Which sentence explains why two of the fractions shown on the number lines
below are equivalent?
4
+
The fractions and are equivalent because both fractions are the same distance
from 0 on a number line.
The fractions and are equivalent because both fractions are located between 0 and
1 on a number line.
The fractions and are equivalent because both fractions have the same
denominator.
numerotar
The fractions and are equivalent because both fractions have the same
The sentence that explains why two of the fractions shown on the number lines below are equivalent is "The fractions \(\frac{1}{2}\) , \(\frac{2}{4}\) are equivalent because both fractions have the same denominator."
The two fractions \(\frac{1}{2}\) and \(\frac{2}{4}\) have the same denominator, which is 4. If we multiply the numerator and denominator of \(\frac{1}{2}\) by 2, we get \(\frac{2}{4}\) which means they are equivalent.
When two fractions have the same denominator, they can be easily compared and converted to their equivalent forms.
A number line is a graphical representation of numbers on a straight line, which can be used to compare numbers and determine their value and relationships. Although the number line helps in understanding the fractions, it does not have any direct relation with the equivalence of the given fractions.
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