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hodyreva [135]
2 years ago
5

Please no files or links and your works

Mathematics
1 answer:
Vikentia [17]2 years ago
4 0

Answer:

17: 25in²

18. 53m²

19. 21.6cm²

20. 20.8km²

Step-by-step explanation:

Formula for area of a parallelogram

Area = Base Length x Height

For 17

Given Base Length: 5 in

Given Height: 5 in

( Using the formula stated above ) area = 5 * 5 = 25

Hence the answer to #17 is 25in²

For 18

Given Base Length: 10 m

Given Height: 5.3 m

( Using the formula stated above ) area = 5.3 * 10 = 53

Hence the answer to #18 is 53m²

For 19

Given Base Length:  5.4 cm

Given Height: 4 cm

( Using the formula stated above ) area = 5.4 * 4  = 21.6

Hence the answer to #19 is 21.6cm²

For 20

Given Base Length: 5.2 km

Given Height: 4 km

( Using the formula stated above ) area = 5.2 * 4 = 20.8 km

Hence the answer to #20 is 20.8km²

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Answer:

D. 245.

Step-by-step explanation:

If you take 1,085 cars and divide it by 31, and then take that answer and multiply it by 7 you get 245.

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3 years ago
What is the surface area of the figure shown?
Shalnov [3]

Answer:

The surface area of the figure = 962 ft²

Step-by-step explanation:

The rectangle dimensions and its area given below

Dimensions       Number         Area

12 x 7                2                   12 x 7 x 2 = 168

16 x 7                1                    16 x 7 = 112

12 x (16 + 5)     1                    12 x 21 = 252

16 x 12              1                    16 x 12 = 192

16 x 13              1                     16 x 13 = 208

Triangle dimensions

Dimensions           Number         Area

b = 12  & h = 5       2                bh/2 = (12*5)/2  = 30

To find total area

Total area = 168 + 112 + 252 + 192 + 208 + 30 = 962 ft²

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3 years ago
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Solve each equation below for x show all work and check your answer by substituting it back into the equation and verifying that
Viefleur [7K]

Answer:

The equations are

(a) x/3 = 6

(b) (5x + 9)/2 = 12

(c) x/4 = 9/6

(d) 5/x = 20/8

The answers to the question are

(a) x = 18

(b) x = 3

(c) x = 6

(d) x = 2

Step-by-step explanation:

(a) x/3 = 6

Therefore x = 3×6 = 18

x =18

Substituting the value of x in the above equation, we have

18/6 = 3 verified

(b) (5x + 9)/2 = 12

Multiplying both sides by 2 gives

(5x + 9)/2 × 2 = 12×2 = 24

5x + 9 = 24 or x = (24-9)/5 = 3

Substituting the value of x in the above equation, we have

(5×3 + 9)/2 = 24/2 = 12 verified

x = 3

(c) x/4 = 9/6

Multiplying both sides by 4, we have

x/4×4 = 9/6×4 = 6

x = 6

Substituting the value of x in the above equation, we have

(6/4 = 9/6 = 3/2 verified

(d) 5/x = 20/8

Inverting both equations, we have

x/5 = 8/20

Multiplying both sides by 20 we have x/5 × 20 = 8/20 × 20 or 4x = 8 and x = 2

Substituting the value of x in the original equation, we have

2/5 = 2/5 = 8/20 verified

x = 2

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3 years ago
Sample size of this?
Brilliant_brown [7]
I think it’s 15 which is just the total number of x’s
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3 years ago
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