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3 years ago

I need to know if the answer to number 9. Is correct

Mathematics

1 answer:

slava [35]3 years ago

8 0

The answer to number 9 would be 43.

Since it tells you that there is a straight angle that would equal 180. So I added up 61 30 and 46. I got 137. Then subtracted 137 from 180 and got 43.

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Find the surface area of the figure. ft

Lapatulllka [165]

Answer:

486

Step-by-step explanation:

Hello!

To find the surface area of a cube we use the equation

$S = 6a^{2}$

S is the surface area

a is the side length

Put what we know into the equation

$S = 6*9^{2}$

Solve

S = 6 * 81

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3 years ago

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Marysya12 [62]

-3.7n - 4 = -11.9
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3 years ago

Simplify the expression. -2/3c -9/5 + 14c + 3/10

Andrew [12]

Answer:

$13 \frac{1}{3} c - 1 \frac{1}{2}$

Step-by-step explanation:

We want to combine alike terms so

-2/3c+14c & -9/5+3/10

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$\frac{14}{1} c - \frac{2}{3} c$

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$\frac{42}{3} c - \frac{2}{3} c$

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now

$\frac{3}{10} - \frac{9}{5}$

Multiply 9/5 by 2/2

$\frac{3}{10} - \frac{ 18}{10}$

Subtract

$- \frac{15}{10}$

Simplify

$- 1 \frac{1}{2}$

put both together

$13 \frac{1}{3}c - 1 \frac{1}{2}$

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

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soldi70 [24.7K]

Work shown above! Box a is 240 lbs Box b is 120 and Box c is 150 lbs hope this helps c:

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3 years ago

Please Help!<br><br> Car X travels 174 miles in 3 hours.

DiKsa [7]

Answer:

The graph =

Step-by-step explanation:

(a)

distance covered (y) = 174 miles

time taken (x) = 3 hours

Therefore the points = (3, 174) and (0, 0) = stationary position

Find the gradient (m)

m = 174-0 / 3-0

m = 58

Therefore the equation =

(distance = 58 × time)

For the distance = 174 and time = 3 hours, the equation to find either distance or time = y = 58x

(b) the graph is constant, because the time and distance are also contant when the speed used is the same.

____________________

#IndonesianPride - kexcvi

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2 years ago