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emmasim [6.3K]
2 years ago
6

25 Points, will give brainliest

Mathematics
1 answer:
miskamm [114]2 years ago
3 0

Answer:

B. 434.89

Step-by-step explanation:

A basketball is a sphere and the volume formula is:

V = 4/3πr³

Given:

d = 9.4

r = 9.4/2

r = 4.7

Work:

V = 4/3πr³

V = 4/3π(4.7)³

V = 4/3π(103.823)

V = 434.89

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A graph has a constant of proportionality of 7.2. Let y represent minutes and x represent miles.
vodka [1.7K]

Answer:

  7.2 minutes per mile

Step-by-step explanation:

If we assume the description means y = 7.2x, the rate 7.2 means each increase in x of 1 mile results in an increase in y of 7.2 minutes. That is the rate is 7.2 minutes per mile.

4 0
3 years ago
Product in standard form (explain)<br> (3+6i)(4+9i)
ololo11 [35]
First you have to factor (aka, multiply) your binomial (which is what you have written) usually it helps to organize your thinking, and help tell what you need to multiply, to use the binomial chicken(or crab claw, what ever you want to call it) which basically you draw two arches, one arch connecting the 3 and 4, and then the other the 3 and 9i. on the opposite side (depending on wheater you connected then from the top or bottom) you connect (with an arch) the 6i and the four, and then the 6i to the 9i.

so now you multiply each piece you've connected:
3 x 4= 12
3 x 9i= 27i 
6i x 4= 24i
6i x 9i= 54i^2 

after  you've done this you can move on to  putting it into standard form, which just means you put things in descending order, depending on how many exponents the x (or in this case i) has.
your largest exponent is 54i^2, so that's first in out equation, next 27i, and 24i (you can combine these because they are like term) which equals 51i, after that you just add the 12 on the end, so the final equation looks like this:

54i^2+51i+12


4 0
3 years ago
What are the numbers for pie I am in class right now tell me asap​
yarga [219]

Answer:

3.14159265359

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Sabrina reads 15 pages per hour. She needs to finish a book with 120 pages. Which equation would you use to determine how many h
frozen [14]

Answer:

15x=120

Step-by-step explanation:

8 0
3 years ago
Pls answer the question in the picture!!! I NEED HELP
pentagon [3]

Answer:

448=h

Step-by-step explanation:

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512 -h = 64

then subtract 512 from both sides

-h = -448

two negatives equal a positive

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7 0
3 years ago
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