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3 years ago

PPPPLLLZZZZZ HELPPPP 67 POINTS

Mathematics

2 answers:

ankoles [38]3 years ago

8 0

Answer:

Step-by-step explanation:

kolbaska11 [484]3 years ago

4 0

I believe it is B.) 0.07 (42.8-15) = x
because 7% is 0.07

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The formula s = StartRoot StartFraction S A Over 6 EndFraction EndRoot gives the length of the side, s, of a cube with a surface

never [62]

Answer:

$2\sqrt{2}\ ft\ longer$

Step-by-step explanation:

Area Of A Cube

Suppose a cube with side length s, the area of one side is

$A_s=s^2$

Since the cube has 6 sides, the total area is

$A=6A_s=6s^2$

But if we have the area, we can solve the above formula for s to get

$A=6s^2$

$\displaystyle s=\sqrt{\frac{A}{6}}$

We have two different cubes with areas 1,200 square inches and 768 square inches. Let's compute their side lengths

$\displaystyle s_1=\sqrt{\frac{1,200}{6}}=\sqrt{200}$

$\displaystyle s_1=10\sqrt{2}\ ft$

$\displaystyle s_2=\sqrt{\frac{768}{6}}=\sqrt{128}$

$\displaystyle s_2=8\sqrt{2} ft$

The difference between them is

$10\sqrt{2}\ ft-8\sqrt{2}\ ft=2\sqrt{2}\ ft\approx 2.83\ ft$

The side of the cube with area 1,200 square inches is $2\sqrt{2}\ ft$ longer then the side of the cube with area 768 square inches

7 0

3 years ago

Read 2 more answers

What os the volume of the closet??

Mars2501 [29]

Answer:

82 7/8

Step-by-step explanation:

Use the volume formula

17/4 x 13/4 x 6

1326/16

Simplify

82 7/8

8 0

3 years ago

(c + b + a) + (-2a - 3b + c)

inna [77]

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▹ Answer

2c - 2b - a

▹ Step-by-Step Explanation

(c + b + a) + (-2a - 3b + c)

Remove the parentheses

c + b + a + (-2a - 3b + c)

Collect like terms

2c + b + a - 2a - 3b

Final Answer

2c - 2b - a

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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7 0

3 years ago

Read 2 more answers

If TR=11 ft, find the length of PS

Klio2033 [76]

Answer:

PS = 31.5 ft

Step-by-step explanation:

∠PTS = 180 - 16 = 154°

164°(π/180) = 41π/45 radians

PS = rθ = 11(41π/45) = 31.48573...

5 0

2 years ago

Find the solution to the following system using substitution or elimination: y = 3x + 2 y = -2x - 8 O A. (-5,-) OB. (-2,-4) O C.

mr Goodwill [35]

Answer:

B. (-2,-4)

Explanation

Given equations:

y = 3x + 2

y = -2x - 8

Solving both equations will yield the values of x and y;

Solution:

y = 3x + 2 ----- (i)

y = -2x - 8 ------ (ii)

Using substitution method, input equation i, into ii

3x + 2 = -2x - 8

Collect like terms and solve;

3x + 2x = -8 -2

5x = -10

x = -2

Then put x = -2 into i, to find y

y = (-2 x 3) + 2

y = -6 + 2 = -4

So, the solution of the equation is B. (-2,-4)

6 0

3 years ago