3 years ago

Help me please is for an exam

Mathematics

1 answer:

kolezko [41]3 years ago

5 0

I think it’s A . It might be wrong .

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How do i find the area of a trapezoid (pictures provided)

scoray [572]

Answer:

(10x - 5) square units.

Step-by-step explanation:

Let the lengths of equal sides be x units.

Hence, AB + AD + DC = x + x + x = 3x

Therefore, BC = 3x - 2

$Area \: of \: trapezoid \\ = \frac{1}{2} (AD + BC) \times 5 \\ = \frac{1}{2} (x + 3x - 2) \times 5 \\ = \frac{1}{2} (4x - 2) \times 5 \\ = \frac{1}{2} \times 2 (2x - 1) \times 5 \\ = (2x - 1) \times 5 \\ = (10x - 5) \: {units}^{2}$

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3 years ago

noah does half as many push-ups as joseph. joshua does 3 times as many push-ups as joseph. they complete 324 altogether. How man

yKpoI14uk [10]

Answer:

112

Step-by-step explanation:

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2 years ago

In 1989 the population of Arizona was 3,622,184. In 1999 the population was 4,778,332. What is the percent of change from 1989 t

kodGreya [7K]

Answer- 31.9%

3,622,184 =100%
4,778,332= x
Criss cross
477,833,200= 3,622,184x
Divide to get x alone
X= 131.9
131.9 - 100= 31.9%
Because it asks for the change

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3 years ago

Simplify the expression

cestrela7 [59]

It would come out as 1

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3 years ago

Describe a strategy for finding the difference of two temperatures/Answer in complete sentences.

bazaltina [42]

Answer:

Use google scooby it's easier than this way.

Step-by-step explanation:

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3 years ago