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Agata [3.3K]
3 years ago
9

Surface area 20 points

Mathematics
1 answer:
shepuryov [24]3 years ago
3 0

Answer:

612 m^2.

Step-by-step explanation:

Area = area of 3 rectangles + area of 2 triangles

= 15 * 14 + 9 * 14 + 12 *14 + 1/2 * 9 * 12 + 1/2 * 9 * 12

= 210 + 126 + 168 + 54 + 54

= 612 m^2.

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Answer: Hope it helps :)

<u>-4</u>

7

Step-by-step explanation:

You have to use the formula <u>y2-y1</u>

                                                x2-x1

So <u>-4-4</u>

     8--6

-4-4= -8

8--6= 14 (two negative signs become a positive sign)

You have -8 over 14

If you simplify it's -4/7 or <u>-4</u>

                                         7

4 0
2 years ago
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A boy weighs 31.5 kilograms. how much does he weigh in pounds? use the following conversion: 1 kilogram is 2.2 pounds
mario62 [17]
If 1 kilogram equals 2.2 pounds, how many pounds will 31.5 kilograms equal?
31.5*2.2 or 69.3 pounds.
4 0
3 years ago
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How many bananas are needed to make the third scale balance?
frozen [14]

The number of bananas required to make the third scale balance is 3.

<h3>What is a scale?</h3>

A scale is a tool used for weighting objects. If the objects on each side weigh the same the scale is balanced. Based on this, let's determine the possible weight of each fruit to balance the last scale.

  • Scale 1 (10 bananas/ 2 pineapples)

It is known 10 bananas weigh as much as 2 apples, but to solve this problem let's assume 10 bananas weigh a total of 1000 grams.

  • 10 banans = 1000 grams = each banana weighs 100 grams
  • 2 pineapples =  1000 grams = each pineapple weighs 500 grams

Scale 2 ( 1 pineapple / 2 bananas, 1 apple)

Using the same imaginary weights let's find the weight of the apple.

  • 1 pineapple = 500 grams
  • 2 bananas = 200 grams
  • 1 apple = 300 grams (500 - 200 = 300)

Scale 3 (1 apple /x )

We know 1 apple is equal to 300 grams and 1 banana is equal to 100 grams. Based on this, the number of bananas to balance the scale is 3.

Learn more about balance in: brainly.com/question/7181548

8 0
2 years ago
A trapezoid has bases that measure 10 cm and 6 cm. The height of the figure is 15 cm. What is the area of th
docker41 [41]

Answer:

120cm

Step-by-step explanation:

5 0
3 years ago
Can someone plz help me with this one problem!!!
blagie [28]

Answer:

yes

Step-by-step explanation:

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3 years ago
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