Answer:
h=12 A=144 sq. cm.
Step-by-step explanation:
pythagoream therom:
9^2+h^2=15^2
81+h^2=225
h^2=225-81
h^2=144
Sq. rt h^2=sq. rt 144
h=12cm
1/2(b1+b2)h
1/2(5+19)12
1/2(24)12
1/2(288)
a=144
The angle of elavation would be 45°, this is because straight up would be represented by 180°, and 90°, would remain as 1200 ft traveled, and half of 90°, is 45° which would double the distance traveled
Answer:
A = 5x + 12 (See explanation!)
Step-by-step explanation:
So, this "polygon" is really just two rectangles combined! With that in mind, remember that the area of a rectangle is base*height. Now, apply that to the problem. We know that the total length of the bottom base is 7, and 5 is the length of the second rectangle's base, so the 1st rectangle's base must be 7 - 5 = 2. The area of the 1st rectangle is then 6*2 = 12. The second rectangle's area is 5*x. So, if the area of the polygon is the sum of the two rectangles' areas, the expression you could use is:
5*x + 6* 2 = A
Simplify/Rewrite:
A = 5x + 12
(A is area, x is the unknown length in the diagram)
Hope this helps!
1 quart= 4 cups
1 gallon= 1 quart
1 recipe= 1 quart
Tripled recipe= 3 * 1 quart= 3 quarts
Tripled recipe= 3 quarts * 4 cups per quart= 12 cups used in triple recipe
1 gallon= 16 cups
16 cups - 12 cups used= 4 cups left
Hope this helps! :)
c = 60
Step-by-step explanation:
A triangle is a figure that has sum of all angles equals to 180
i.e ,
Angle A + Angle B + Angle C = 180
60 degree + 60 degree + Angle C = 180
Angle C = 180 - 60 - 60
Angle C = 60
