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arlik [135]
1 year ago
15

There are 45 eighth graders and 20 seventh graders in a school club. The president of this club wants 40% of the club’s members

to be seventh graders. How many more seventh-graders must join the club in order to meet the president’s wishes? (Assume that the number of eighth-graders remains the same.)
Mathematics
1 answer:
iVinArrow [24]1 year ago
5 0

Answer: Please Give Brainliest. Thank You!

10 more

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Answer
(389-43)/389=346/389
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In a basket, 5/9 of the fruits are apples and the rest are oranges. 3/10 of the apples are green in colour. There are 15 green a
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In a basket, 5/9 of the fruits are apples and the rest are oranges. 3/10 of the apples are green in colour. There are 15 green apples. How many fruits are there in the basket?

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When 27x^2z/-3x^2z^6 is completely simplified, the exponent on the variable z is _____.
Savatey [412]
<span>The expression given (27x^2)z/(-3x^2)(z^6), can be simplify as below:

 By properties of powers, if you have the same base, you can substract the exponents. Then:

 =(</span>27x^2)z/(-3x^2)(z^6)
 =-9z/z^6  (As you can see: x^2-2= x^0=1)
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<span>
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7 0
2 years ago
A rectangle that is x feet wide is inscribed in a circle of radius 25 feet. Express the area of the rectangle as a function of x
Viefleur [7K]

Answer:

A(x)=x(\sqrt{2500-x^{2} } ) is the area expressed as function of x,

and x: >0, <50 is the domain of the function.

Step-by-step explanation:

Draw an appropriate figure and then express the area of the rectangle as a function of x.

We know that the diagonal of a rectangle inscribed in a circle, will be equal to the diameter of the circle. 50 feet

let w = the width of the rectangle

therefore

x^2 + w^2 = 50^2\\w^2 = 2500 - x^2\\w = \sqrt{2500-x^{2} }

recall

Area = x*w

replace w

A(x)=x(\sqrt{2500-x^{2} } ) is the area expressed as function of x

b)state the domain of the function

x: >0, <50

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A ________ is a numerical quantity computed from the data of a sample and is used in reaching a decision on whether or not to re
scZoUnD [109]
The answer for the completion exercise shown above is the second option (option b), which is:

 b. critical value.

 Therefore, you have that the text is: "<span>A critical value is a numerical quantity computed from the data of a sample..."
</span>
 This numeral quantity is used in statitics. Then, if the absolute value is greater that the quantity defined before, the null hypothesis must be rejected.
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