Answer:
x.
Step-by-step explanation:
If h(x) is the inverse of f(x) them h(f(x)) = x.
The area of the resulting two-dimensional cross section with the dimensions shown in the figure can be determined by simply using the formula for the area of a rectangle.
Given:
Length = 12 mm
Width = 7 mm
Area = L x W
Area = 12 mm x 7 mm
Area = 84 mm^2
X= miles driven in April
(253 + 277 + 280 + x)/4= 284
add in parentheses
(810 + x)/4= 284
multiply both sides by 4
810 + x= 1136
subtract 810 from both sides
x= 326 miles
ANSWER: She must drive 326 miles in April to average at least 284 miles January through April.
Hope this helps! :)
<h3>
Answer: $2370</h3>
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Work Shown:
x = price before the discount
30% of x = 0.30x = amount saved
x - 0.30x = 0.70x = price after discount = 1659
0.70x = 1659
x = 1659/(0.70)
x = 2370
A^2 +b^2 = c^2
a= wall
b = ground (18)
c = ladder (25)
a^2 + 18^2 = 25^2
a^2 + 324 = 625
a^2 = 301
a = 17.349