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k0ka [10]
3 years ago
15

How would you find the surface area of a cube, if you knew the area of one face ???

Mathematics
2 answers:
Nataly_w [17]3 years ago
8 0

Answer:

<h2>Step-by-step </h2>
alexandr402 [8]3 years ago
8 0

Answer:

just times the area by 6!

Step-by-step explanation:

if the surface area means area of all the faces of the cube, that means 6 areas of the same length and width! multiplying the area by 6 will result in your answer :)

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ohan found that the equation –2|8 – x| – 6 = –12 had two possible solutions: x = 5 and x = –11. which explains whether his solut
klio [65]
-2 | 8-x| - 6 = -12...add 6 to both sides
-2 |8-x| = -12 + 6
-2 |8-x| = - 6...divide both sides by -2
|8-x| = -6/-2
|8-x| = 3

8 - x = -3          -(8 - x) = -3
-x = -3-8           -8 + x = -3
-x = -11              x = -3 + 8
x = 11                x = 5

not correct.....sign error
5 0
3 years ago
9. Question
ValentinkaMS [17]
Answer:

what’s the inequality? I only see the value of 20

Explanation:
8 0
3 years ago
the scale of a model train is 1 inch to 13.5 feet. One of the cars of the model train is 5 inches long. What is the lenght, in f
Dominik [7]

Answer:

67.5

Step-by-step explanation:

6 0
3 years ago
7. Jason wants to walk the shortest distance to get from the parking lot to the beach
Assoli18 [71]
There are 3 right triangles.
                         Long leg          short leg           hypotenuse
Large                  ?                          ?                       32+18 = 50 m
Medium            32 m                     x                          ?
Small                   x                         18 m                    ?

Similar triangles: small & medium

short leg / long leg
x/32 = 18/x
x*x = 18 * 32
x² = 576
√x² = √576
x = 24

                       Long leg          short leg           hypotenuse
Large                  ? → 40 m          ?                       32+18 = 50 m
Medium            32 m                     24 m                 ? → 40 m
Small                24 m                     18 m                  ? → 30 m

solve hypotenuse of medium and small using Pythagorean theorem.

32² + 24² = c²
1024 + 576 = c²
1600 = c²
√1600 = √c²
40 = c

24² + 18² = c²
576 + 324 = c²
900 = c²
√900 = √c²
30 = c

Solve for the long leg of the large right triangle using ratio and proportion
medium and large: long leg / hypotenuse

32/40 = x/50
32*50 = 40 * x
1600 = 40x
1600/40 = x
40 = x
<span>
</span><span>A. How far is the spot on the beach from the parking lot? 24 meters

B. How far will he have to walk from the parking lot to get to the refreshment stand? 40 meters
</span>
7 0
3 years ago
Can you answer number 4 and can you answer question 3.
xxMikexx [17]

Answer:

0.03

Step-by-step explanation:

<u>Brand A:  11 fluid ounces and costs $2.31</u>

2.31 / 11

0.21 per fluid ounce

<u>Brand B:  15 fluid ounces and costs $2.70</u>

2.70 / 15

0.18 per fluid ounce

<u>Subtract:  </u>

0.21 - 0.18

0.03

Answer:  0.03

6 0
3 years ago
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