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Brilliant_brown [7]

3 years ago

7

‼️Anotha one. Find the volume of the prism

2 answers:

allochka39001 [22]3 years ago

7 0

168 cubed units, answr B

Vsevolod [243]3 years ago

5 0

That triangular prism will be half the volume of the rectangular prism that's 7 by 6 by 8.

(7)(6)(8)/2 = 168 cubic units

Choice B

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Answer90 degrees

Step-by-step explanation:

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MArishka [77]

I think it's D. The area of A is k2 times the area of rectangle B

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Find the sum of the first 40 terms of the arithmetic sequence-3,1,5,...

goldfiish [28.3K]

Answer:

Sum of Arithmetic Sequence

$S_{n} = (a-l)$ or $S_{n} = \frac{1}{2} n(2a + (n-1)d)$

Where:

a = first term
l = last term
d = common difference
n = number of terms

a = -3

l is unknown

d = 1 - -3 = 4

n = 40

Use the second equation because l in unknown.

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3 years ago

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You are fitting a new kitchen and measure the folllowing lengths of pipe.

Dafna1 [17]

we know that

$1$ meter is equal to $100$ centimeters

Step $1$

<u>convert all measurements to centimeters</u>

<u>case 1) </u> $0.81\ m$

$0.81\ m = 0.81*100= 81\ cm$

<u>case 2) </u> $1.08\ m$

$1.08\ m = 1.08*100= 108\ cm$

<u>case 3) </u> $0.8\ m$

$0.8\ m = 0.8*100= 80\ cm$

<u>case 4) </u> $180\ cm$

<u>case 5) </u> $18\ cm$

Step $2$

<u>Compare the values</u>

we have

$[81,108,80,180,18]$

the shortest length is $18$

the longest length is $180$

Step $3$

<u>Subtract the shortest length from the longest</u>

$180\ cm-18\ cm=162\ cm$

therefore

<u>the answer is</u>

$162\ cm$

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4 years ago

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What is the remainder when 7x^2- x^3is divided by x - 8?

White raven [17]

Answer:

The remainder is -64

Step-by-step explanation:

Given

$7x^2 - x^3$

Divided by $x - 8$

Required

Determine the remainder

Equate $x - 8$ to 0

$x - 8 = 0$

Solve for x

$x = 8$

Using remainder theorem, substitute 8 for x in $7x^2 - x^3$

So, we have:

$7 * 8^2 - 8^3$

Evaluate all exponents

$7 * 64 - 512$

$448 - 512$

$-64$

3 0

3 years ago