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morpeh [17]
3 years ago
6

17. Solve the equations:

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
7 0
1)4(x-3)+5=1
4x-4×3+5=1
4x=1+12-5
4x=8 (divide by 4)
x=2

answer is D

2)96=-6(-4-3y)
96=24+18y
-18y=24-96 (divide by -18)
y=-72/(-18)
y=4
answer is B

3)-4y+8=4(2y-2)-2(-16+8y)
-4y+8=8y-8+32-16y
-4y+8y=24-8
4y=16 (divide by 4)
y=4

answer is B
alisha [4.7K]3 years ago
4 0
1) D x=2
2) B x=4
3) B y=4
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If the surface area of a sphere is 530.93 square cntimeters, find the volume of the sphere
hodyreva [135]

The volume of sphere is: 1149.76\ cm^3

Further explanation:

We have to find the radius of the sphere first to find the volume of sphere

Given

Surface Area of Sphere=530.93 cm^2

SA=4\pi r^2\\530.93=4*3.14*r^2\\530.93=12.568r^2\\r^2=\frac{530.93}{12.56}\\r^2=42.27\\Taking\ Square\ root\ on\ both\ sides\\\sqrt{r^2}=\sqrt{42.27}\\r=6.5\ cm\\Now,\\V=\frac{4}{3}\pi r^3\\V=\frac{4}{3}*3.14*(6.5)^3\\=\frac{4}{3}*3.14*274.625\\=1149.76\ cm^3

The volume of sphere is: 1149.76\ cm^3

Keywords: Sphere, Volume of sphere

Learn more about spheres at:

  • brainly.com/question/4892332
  • brainly.com/question/4924817

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1

Step-by-step explanation:

3 0
3 years ago
I don’t have a graphing calculator, please help!
Misha Larkins [42]

Answer: is your  first option

Step-by-step explanation:

after going over all the available equations, your first option is the only one that had results that were much more reasonable than the others. hope it helps.

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