Answer: 15
Step-by-step explanation:it is 15 because the equation for area of a trapezoid is b + b x h / 2 so 12 + 3 = 15 x 2 = 30/2 = 15.
An = -2n(n + 3)
a(15) = -2(15)(15 + 3) = -30(18) = -540
Answer:
D. 17.3
Step-by-step explanation:
50=3x-2
52=3x
x=17.333
D
1. To solve this problem you must sum the volume of the cone and the volume of the hemisphere. This means that the volumen of the prop is:
Vt=Vc+Vh
Vt is the volumen of the prop.
Vc is the volumen of the cone.
Vh is the volume of the hemisphere.
2. The volume of the cone (Vc) is:
Vc=1/3(πr²h)
r=9 in
h=14 in
π=3.14
4. Then, you have:
Vc=(3.14)(9 in)²(14 in)/3
Vc=3560.76 in³/3
Vc=1186.92
5. The volume of the hemisphere (Vh) is:
Vh=2/3(πr³)
π=3.14
r=9 in
6. Then, you have:
Vh=(2)(3.14)(9 in)³/3
Vh=4578.12 in³/3
Vh=1526.04 in³
7. Finally, the volumen of the prop (Vt) is:
Vt=Vc+Vh
Vt=1186.92 in³+1526.04 in³
Vt=2713.0 in³
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What is the volume of the prop?
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The volume of the prop is 2713.0 in³
Answer:
29
Step-by-step explanation:
25+4
you take the final amount and add what was taken to find the initial value
