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2 years ago

For the sphere shown, r = 4.2 cm. What is its volume, to the nearest cubic centimeter?

Mathematics

1 answer:

DochEvi [55]2 years ago

8 0

V = 4/3(pi)(r^3)
V = 4/3(pi)(4.2^3)
V = 310 cm^3

Good luck!

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A 100-point math test contained true/false questions worth 3 points each and short answer questions worth 11 points each. If the

TiliK225 [7]

Answer:

Step-by-step explanation:

100 - 12 (true or false) = 88

88/11 = 8

Hope this helps!!

happy holidays

3 0

2 years ago

PLZ HURRY IT'S URGENT!!

Jet001 [13]

Answer:

OPTION C: 60%

Step-by-step explanation:

Chances of raining the next day + Chances that it will not rain = 100%

One of them should definitely be true.

So, if the chance of it raining tomorrow is 40% then there is 60% chance that it will not rain tomorrow.

This can also seen as follows:

Probability of rain tomorrow + Probability of no rain = 1

Given Probability of rain tomorrow = 40% = $\frac{40}{100} = \frac{2}{5}$

Probability of no rain tomorrow = 1 - Probability of rain tomorrow

⇒ Probability of no rain = 1 - $\frac{2}{5}$

⇒ Probability of no rain = $\frac{3}{5}$

Expressing it as percentage: $\frac{3}{5} \times 100$ = 60%.

8 0

3 years ago

The square root of 8?

Hoochie [10]

Answer:

√8 8n sure form= √ 4 ×√2

= 2×√2

= 2√2

8 0

2 years ago

suppose that y varies jointly with x and z. Find your when x=3 and z=5 , given that y=72 when x=6 and z=4

Hitman42 [59]

Y α xz

y = kxz y = 72, when x = 6, and z = 4

72 = k*6*4

72 = k*24

24k = 72

k = 72/24

k = 3.

<span>y = kxz
</span>
<span>y = 3xz </span>

Finding y, when x = 3, z = 5.

y = 3xz

y = 3*3*5

y = 45

3 0

3 years ago

If f(x) = 3x – 2 and g(x) = 2x + 1, find (f + g)(x).

Mariulka [41]

Answer:

D. 5x - 1

Step-by-step explanation:

(f+g)(x) ➡ f(x) + g(x)

3x -2 + 2x + 1 = 5x -1

5 0

3 years ago