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3 years ago

Yep here we go again:

Mathematics

1 answer:

Georgia [21]3 years ago

3 0

Answer:

let DEC=x

x-135=180

x=45°

supplementary angles

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The grade you make on your exam varies directly with the number of correct answers you get on the exam.Answering 15 questions co

yuradex [85]

Answer:

The grade you make on your exam varies directly with the number of correct answers. The constant of variation is 5

Solution:

Given, The grade you make on your exam varies directly with the number of correct answers you get on the exam.

Answering 15 questions correctly will give you a grade of 75 what is the.

We have to find what is the Constant of variation.

Now, according to the given information, grade  number of correct answer

Then, grade = c x number of correct answers, where c is constant of variation.

Now, substitute grade = 75 and number of correct answers = 15

$\text { Then, } 75=c \times 15 \rightarrow c=\frac{75}{15}=5$

Hence, the constant of variation is 5

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2 years ago

What is the volume of the cylinder below?

Svetlanka [38]

now, let's recall Cavalieri's Principle, "solids with equal altitudes and cross-sectional areas at each height, have the same volume".

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$\bf \textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} h=5\\ r=4 \end{cases}\implies V=\pi (4)^2(5)\implies V=80\pi$

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3 years ago

Graph each system of constraints. Name all vertices. Then find the values of x and y that either maximizes or minimizes the obje

stealth61 [152]

i mean its pretty simple it is math cmon now.

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3 years ago

Evaluate the expression if X=7, y=3, z=9. 6x-(z-2y)+15

Mrac [35]

Answer:

Step-by-step explanation:

6x-(z-2y)+15

Let X=7, y=3, z=9

6*7-(9-2*3)+15

PEMDAS

Start with the parentheses

(9-2*3)=9-6 =3

6*7-(3)+15

Multiply and divide

42 -3+15

Add and subtract

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telo118 [61]

Answer:

huntytuni

Step-by-step explanation:

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2 years ago

Read 2 more answers