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4 years ago

When multiplying signed numbers how do you know if it is negative or positive?

Mathematics

1 answer:

Kruka [31]4 years ago

4 0

If it has a - its negative, anything else is positive

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If c=8 which expression has the greater value, 5c^(3)+982 or 2c^(4)−7c? Please help!!!!

andrew-mc [135]

Answer:

Step-by-step explanation:

If c = 8, then:

5c^(3)+982 => 5(8)^3 + 982 = 3542

and

2c^(4)−7c = c(2c^3 - 7) => 8(2*512 - 7) = 8(1017) = 8136

So the second expression has the greater value when c = 8.

7 0

3 years ago

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What percent of 99.2 is 91

olya-2409 [2.1K]

To find percent, you take 91 and divide it by 99.2 then multiply by 100.

(91/99.2) × 100 = 91.92%

7 0

3 years ago

Simplify (9+ 1/6 ) + (1.8 + 2 3/5

3241004551 [841]

Answer:

(9+1/6)+(1.8+2 3/5)

55/6 + (9/5 + 13/5)

55/6 + 22/5

407/30 = 13 17/30 = 13.56

5 0

3 years ago

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Charles begins finding the volume of a trapezoidal prism using the formula a = one-half(b1 b2)h to find the prism's base area. a

Orlov [11]

The volume of the trapezoidal prism having side lengths x, (x+2), (x+4) and height of 2x is 2x³+6x² option first is correct.

<h3>What is volume?</h3>

It is defined as a three-dimensional space enclosed by an object or thing.

We know the volume of the trapezoidal prism can be given:

$\rm V=\frac{1}{2} (a+b)\times h \times L$

Where V = The volume of the trapezoidal prism:

Length of the trapezoid L = x

Top width a = (x+2)

Base width b = (x+4)

Height of the trapezoidal prism h = 2x

$\rm V=\frac{1}{2} (x+2+x+4)\times 2x \times x$

$\rm V=\frac{1}{2} (2x+6)2x^2\\\\\rm V= (2x+6)x^2\\\\\rm V= (2x^3+6x^2)$

Thus, the volume of the trapezoidal prism is $\rm (2x^3+6x^2)$

Learn more about the volume here:

brainly.com/question/16788902

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2 years ago

Find the slope m of a line perpendicular to a line with known slope −6.

Ipatiy [6.2K]

Answer:

1/6

Step-by-step explanation:

Perpendicular lines have slopes whose product is -1. That is ...

-6m = -1

m = 1/6 . . . . . divide by -6

7 0

4 years ago

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