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3 years ago

Please give me the correct answer.Ony answer if you're very good at math.Take your time when answering.

Mathematics

1 answer:

Umnica [9.8K]3 years ago

8 0

Answer:

y=20x

Step-by-step explanation:

Since y represents the total cost y is the total. 20x because it is 20 dollars an hour and x after 20 because we do not know how many hours they will plan for lessons.

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I need help with these two problems

erastova [34]

Number 5 is 15.9 kilograms

And number 6 is 6 million cubic feet per minute

You just cross multiply

5 0

3 years ago

Solve the following triangle. Given A=51 degrees b=40 c=45

STALIN [3.7K]

Answer:

$a=36.87\ units$

$B=57.47^o$

$C=71.53^o$

Step-by-step explanation:

step 1

Find the length side a

Applying the law of cosines

$a^2=b^2+c^2-2(b)(c)cos(A)$

substitute the given values

$a^2=40^2+45^2-2(40)(45)cos(51^o)$

$a^2=1,359.4466$

$a=36.87\ units$

step 2

Find the measure of angle B

Applying the law of sines

$\frac{a}{sin(A)} =\frac{b}{sin(B)}$

substitute the given values

$\frac{36.87}{sin(51^o)} =\frac{40}{sin(B)}$

$sin(B)=\frac{sin(51^o)}{36.87}{40}$

$B=sin^{-1}(\frac{sin(51^o)}{36.87}{40})=57.47^o$

step 3

Find the measure of angle C

Remember that the sum of the interior angles in any triangle must be equal to 180 degrees

$A+B+C=180^o$

substitute the given values

$51^o+57.47^o+C=180^o$

$108.47^o+C=180^o$

$C=180^o-108.47^o=71.53^o$

5 0

3 years ago

Will award brainliest, What is the area, in square units, of the polygon shown?

slavikrds [6]

7 x 2 = 14
3 x 1 = 3

14+3 = 17

answer 17 unit^2

7 0

3 years ago

Which of the following is equivalent to square root of 8?

arlik [135]

Answer:

$\sqrt{8} =\sqrt{4*2} =2\sqrt{2}$

Step-by-step explanation:

The expression $\sqrt{8}$ is a radical. To simplify pull out any perfect square factors.

$\sqrt{8} =\sqrt{4*2} =2\sqrt{2}$

Each of these expressions is equivalent.

4 0

3 years ago

Read 2 more answers

4x+8y+2y+6x simplify

iren2701 [21]

10x + 10y

:)++ love you !

5 0

3 years ago

Read 2 more answers

Please give me the correct answer.Ony answer if you're very good at math.Take your time when answering.​

Please give me the correct answer.Ony answer if you're very good at math.Take your time when answering.