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3 years ago

PLEASE HELP What is the volume of this rectangular prism?

Mathematics

1 answer:

aleksandrvk [35]3 years ago

5 0

Step-by-step explanation:

25/4*14*3= 21*25/4= 262.5 ft^3

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Xy=7, x=0, y=7 and y=9 revolves around the x axis

Vanyuwa [196]

With shells, the volume is given by

$2\pi\displaystyle\int_7^9\frac7y\times y=14\pi\int_7^9\mathrm dy=28\pi$

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3 years ago

Stewart School has 178 computers. Grade 3 has 58 computers and flgrade 4 has 57 computers. What equations can be used to find ho

Ilya [14]

Answer: $x=58+57=115$

$y=178-115=63$

Step-by-step explanation:

Let x be the number of computers Grade 3 and grade 4 has and y be the numbers of computers the rest of school has.

Then, x= Grade 3 computers +Grade 4 computers.

$\Rightarrow\ x=58+57=115$

And y = Total computers - x

$\Rightarrow\ y=178-115=63$

Therefore, The equations can be used to find how many computers the rest of the school has.

$x=58+57=115$

$y=178-115=63$

7 0

4 years ago

3. Jim bought 2 books yesterday. The price

natima [27]

Answer:

26.40 divided by 2 is 13.20 13.20 is your answer!

7 0

3 years ago

Simplify the expression: 5(2n - 3) + 4(-3n + 2)

KIM [24]

Answer:

-2n-7

Step-by-step explanation:

5(2n - 3) + 4(-3n +2)

10n - 15 - 12n + 8

-2n - 7

4 0

4 years ago

What is the recursive rule for the sequence?

babymother [125]

Answer:

$a_{n} =a_{n-1} -5.6$ where $a_{1} =-2.7$

Step-by-step explanation:

This is an arithmetic sequence with the first term is $a_{1}$ = -2.7 and has a common difference of $d=-5.6$ .

Arithmetic Sequence: $a_{n} =a_{n-1} +d$

$a_{n}$ is the nth term and $d$ is the common difference.

The common difference: -2.7, -8.3, -13.9...

Subtract: -2.7- (-8.3) = -5.6, -13.9 - (-8.3) = -5.6

Common difference: $d = -5.6$

Recursive rule: $a_{n} = a_{n-1} -5.6$

7 0

3 years ago