The formula for the area of a trapezoid is
A = (1/2)(b₁ +b₂)h
Substitute the given information and evaluate. (Make sure all dimensions have the same units.)
A = (1/2)(12 ft +5 ft)(8 ft)
A = 68 ft²
The area of the trapezoid is 68 square feet.
She got 23 questions correct out of 25. That means you divide 23 by 25, which equals .92. Then , to find the percentage, you multiply it by 100, which gives you 92%
(X+8) (X-10) is the answer
Let's assume
people were in the original group of winners as x
A group of winning ticket holders share equally 90,000,000 lottery
Before the money is divided, three more winning ticket holders are declared
so, total number of winning tickes =x+3
each persons share is reduced to 5,000,000
so, total money =5,000,000*(x+3)
and this must be equal to total money

now, we can solve for x
and we get

Subtrac both sides by 3


so,
number of people were in the original group of winners is 15 ...........Answer
Answer:
Step-by-step explanation:
cos R = adj/hyp
R = cos⁻¹(9/10) = 25.8419327... ≈ 25.8°