Answer: 102
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We'll use the formula
A = h*(b1+b2)/2
where
A = area of trapezoid
h = height
b1 & b2 are the parallel bases
In this case,
b1 = 6+7 = 13
b2 = 21
h = 6
Making the area to be
A = h*(b1+b2)/2
A = 6*(13+21)/2
A = 6*(34)/2
A = 204/2
A = 102
Side Note: We don't use the slanted side of 10 cm at all
Answer:
8/17 is correct because cosine = adjacent/hypotenuse, and since angle A is theta, or the reference angle, the adjacent of A would be 8, and the hypotenuse is always across the right angle.
15/17 would be sine instead of cosine
Answer:
4x+2
I hope this helps love. Have a good night!!
Remove parentheses.
5x+3-x-15x+3−x−1
Collect like terms.
(5x-x)+(3-1)(5x−x)+(3−1)
Simplify.
4x+24x+2
Answer:

Step-by-step explanation:
Given



Required
Find x
If
i.e. If AB is parallel to CD, then

Substitute values for ABC and BCD

Collect Like Terms


Multiply through by 





Answer:
x=1
Step-by-step explanation:
5x-4=9
5x=9-4
5x=5
x=1