Answer:
H = 10 inches
Step-by-step explanation:
The fomula for area of a trapezoid is
A = (1/2)(B1 + B2)H
where B1 is a base, B2 is the other base, and H is the height
It reads as "Area is one half the product of the sum of the bases and the height"
Plug in what you are given and solve for H. We are given A, B1, and B2
50 = (1/2)(3 + 7)H
50 = (1/2)(10)H (simplify the parenthesis first)
50 = 5H (simplify the right side)
10 = H (divide by 5 on both sides to isolate H)
Answer:
217
Step-by-step explanation:
5425/25 = 217
53 3/4=53.75
To find out how many 4ft ropes you can make divide 53.75 by 4
53.75/4=13.4375
You can make 13 4ft ropes out of a 53.75ft rope
Answer:
x = 3i
Step-by-step explanation:
(x+5)² - 4 = 12
simplify (x+5)²
x × x + 5 × 5 - 4 = 12
x² + 25 - 4 = 12
x² + 21 = 12
combine the like terms
x² = 12 - 21
x² = -9
square root both sides to solve for x
√x² = √-9
the square cancels the square root, so we have
x = √-9
x = 3i
