Answer:
B. 4x^2=28x-112=0.
Step-by-step explanation:
Using area=length*width, 160=(2x+8)(2x+6).
Expanding, (2x+8)(2x+6)=4x^2+16x+12x+48.
Setting this equal to 160, 160=4x^2+28x+48, or 4x^2+28x-112=0.
Answer:
The answer is 125.
Step-by-step explanation:
The formula for volume of a cube is s^3, where s is the length of a side. (Weirdly, you cube a cube.)
So, when you cube 5, the answer is 125.
Answer:
x ≈ 80.4
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan15° =
=
( multiply both sides by 300 )
300 × tan15° = x , then
x ≈ 80.4 ( to the nearest tenth )
Answer:
The ladder needs to be 26 ft long.
Step-by-step explanation:
So pythag is
+
=
We have the height and distance from the window, so we need to find c
+
=
100+576= 676
= 26