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3 years ago

Using 3.14 for 7, a sphere has a volume of 904.32 mm.

Mathematics

1 answer:

Alla [95]3 years ago

7 0

Answer:

$v = \frac{4}{3} \pi {r}^{3 } \\ 904.32 = \frac{4}{3} \times 3.14 \times {r}^{3} \\ {r}^{3} = \frac{3 \times 904.32}{4 \times 3.14} = 21.57 \\ r = 2.78$

then Radias equal to 5.5676

Step-by-step explanation:

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Find the sum. Include all calculations in your answer.

Nookie1986 [14]

-6+3= -3
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The answer is -3 5/7
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2 years ago

Evaluate the following expression for: x= -2, y=4, z=-3<br><br> 4(2x+y)-2y+z

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Evaluate the expression 4(2x+y)-2y+z for x=-2, y=4 and z=-3

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Before inserting the values of the variables, I recommend writing the equation in its simplest form.

First, use the distributive property and distribute 4:-

8x+4y-2y+z

Simplifying,

8x+2y+z

Now that the expression is in its simplest form, we can substitute the variables and simplify the expression.

First, write -2 in lieu of x:-

8(-2)+2y+z

-16+2y+z

Now, write 4 in lieu of y:-

-16+2(4)+z

-16+8+z

-8+z

Final step:-

write -3 in lieu of z:-

-8+(-3)

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2 years ago

A probability experiment will consist of selecting one of two stacks of cards, and then choosing a card at random from the stack

postnew [5]

Answer:

The probability that the red card came from the first stack is:

40%

Step-by-step explanation:

a) Data and Calculations:

Stack Red Blue Total

First 6 5 11

Second 9 0 9

Total 15 5 20

The probability of selecting from the first stack = 50% since equal opportunity is given to the two sacks.

The probability of red card from the first stack = 6/15 = 0.4 = 40%.

b) The probability that the red card came from the first stack is given by the number of red cards in the first stack divided by the number or red cards in the two stacks. This is equal to 6/15 = 0.4 or 40%.

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2 years ago

I will give brainiest

lesya692 [45]

Answer:

B. {1, -4}

Step-by-step explanation:

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3 years ago

Alex bought six books priced at $8 each. He got a discount of 20% off the total cost. How much did Alex pay for the books? Write

Yanka [14]

6 books at $ 8 = (6 * 8) = 48

if he got a discount of 20%, then he paid 80%
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3 years ago

Read 2 more answers