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3 years ago

6

The equation a = 1/2(b1 + b2)h can be used to determine the area, a, of a trapezoid with height, h, and the base lengths, b1 and

b2. Which are equivalent equations? Check all that apply.

1 answer:

andrew11 [14]3 years ago

8 0

Answer:

2a/b1 +b2=h

And

2a/h -b2=b1

Step-by-step explanation:

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OLEGan [10]

Answer:

$\cos\ A = \frac{2}{4.5}$

Step-by-step explanation:

Given

$sin\ A = \frac{2}{4.5}$

See attachment

Required

Explain and correct the error

The error in the equation is that: the formula of cosine of angle A is used to calculate the sine of angle A.

The ratio can be corrected as by using:

$\cos\ A = \frac{Adjacent}{Hypotenuse}$

$\cos\ A = \frac{AC}{AB}$

$\cos\ A = \frac{2}{4.5}$

8 0

3 years ago

What is the answer to 7 8 ÷ 3 8

devlian [24]

2.05263158 is the answer

3 0

3 years ago

Read 2 more answers

If y ¤ x = y2x for all positive integers, then (3 ¤ 4) ¤ 2 =

aivan3 [116]

96 is the answer to that

7 0

3 years ago

4x - 2y = 6<br> y = - 2x - 1<br> what is the value of x+ y

Elenna [48]

4x-2y=6 (3/2+y/2
Y=-2x-1

4 0

3 years ago

Divide £24 in the ratio 1:3

Kisachek [45]

Answer:

6, and 18

Step-by-step explanation:

A ratio of 1:3 contains 4 parts because 1+3=4.

Therefore, divide 24 by 4 to get 6.

The number is split between three parts and one part, so the parts are 3(6) and 1(6).

The parts are 6 and 18

7 0

3 years ago