Answer:
14. 2384 in²
15. 291.8 in²
Step-by-step explanation:
14. The total surface area consists of the area of two equal triangles and three rectangles.
The area of each triangle is
, which is
. The area of both triangles combined is 336 in².
The area of each of the slanted rectangles is base x height, which is 25x32=800 in². The area of both rectangles combined is 1600 in².
The area of the base rectangle is 14x32=448 in².
Therefore, to find the total surface area, you add the area of each side together: 336+1600+448=2384 in².
15. The equation for the surface area of a cylinder is
.
The radius (r) is 4.6 in and the height (h) is 9.1 in.
Therefore, the surface area is:
in²
Answer:
Step-by-step explanation:
Use a claculator so easy
Answer:
The value of 7 in 678,901 is 10 times greater than the value of 7 in 67,890
Step-by-step explanation:
step 1
we have
678,901
Write in expanded form
678,901=600,000+70,000+8,000+900+1
The value of 7 is 70,000
step 2
we have
67,890
Write in expanded form
67,890=60,000+7,000+800+90
The value of 7 is 7,000
step 3
Divide 70,000 by 7,000

therefore
The value of 7 in 678,901 is 10 times greater than the value of 7 in 67,890
28 x 4 = 112
30 x 4 = 120
32 x 4 = 128
34 x 4 = 136
36 x 4 = 144
domain = {112,120,128,136,144}