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evablogger [386]

3 years ago

11

It took Mariel two hours to complete 13 pages in a workbook she completed 7 1/2 pages in the first hour how many pages does he c

omplete in the second hour

2 answers:

Elena-2011 [213]3 years ago

7 0

B 5 1/2

Hope it helped!!!

kati45 [8]3 years ago

3 0

I think is the 2 I think I’m not very Sure

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What was done to the previous equation?

zubka84 [21]

The “2” outside the brackets was multiplied onto everything that is inside the brackets.

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3 years ago

What is the missing statement in step 3 of the proof

Nataly [62]

I don’t understand is there more to the question?

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3 years ago

The volume of a rectangular prism (shown below) is 48x^3+56x^2+16x Answer the following questions:

pickupchik [31]

Answer:

(a)

$Length = 8x\\Width = 3x + 2\\Height = 2x + 1$

(b)

$P(2) = 640$

(c)

$Length= 16$

$Width = 8$

$Height =5$

(d)

$Volume = 640$

Step-by-step explanation:

Given

$P(x) = 48x^3 + 56x^2 + 16x$

Solving (a): The prism dimension

We have:

$P(x) = 48x^3 + 56x^2 + 16x$

Factor out 8x

$P(x) = 8x(6x^2 + 7x + 2)$

Expand 7x

$P(x) = 8x(6x^2 + 4x + 3x + 2)$

Factorize

$P(x) = 8x(2x(3x + 2) +1( 3x + 2))$

Factor out 3x + 2

$P(x) = 8x(3x + 2)(2x + 1)$

So, the dimensions are:

$Length = 8x\\Width = 3x + 2\\Height = 2x + 1$

Solving (b): The volume when $x = 2$

We have:

$P(x) = 48x^3 + 56x^2 + 16x$

$P(2) = 48 * 2^3 + 56 * 2^2 + 16 * 2$

$P(2) = 640$

Solving (c): The dimensions when $x = 2$

We have:

$Length = 8x\\Width = 3x + 2\\Height = 2x + 1$

Substitute 2 for x

$Length=8*2$

$Length= 16$

$Width = 3*2+2$

$Width = 8$

$Height = 2*2 + 1$

$Height =5$

So, we have:

$Length= 16$

$Width = 8$

$Height =5$

Solving (d), the volume in (c)

We have:

$Volume = Length * Width * Height$

$Volume = 16 * 8 * 5$

$Volume = 640$

8 0

3 years ago

Find the missing side length in the right triangle.

Setler [38]

Answer:

5.83

Step-by-step explanation:

Pythagorean Theorem a^2 + b^2 = c^2

$5^{2} + 3^{2} = 34\\\sqrt{34} = 5.83$

7 0

3 years ago

MAY YALL PLZ HELP MEH????????????

Andreas93 [3]

Answer:

$24.40

Step-by-step explanation:

3.60×6=21.6

21.60+2.80=$24.40

5 0

3 years ago

Read 2 more answers