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2 years ago

-(-81/-9) is this positive or negative?

Mathematics

1 answer:

Delvig [45]2 years ago

8 0

Negative. There are - < these signs before the numbers, so that means they’re negative

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Evaluate the expression when, m=-2 m²-6m-5 (Thank you for your help!)

Darina [25.2K]

Answer:

Step-by-step explanation:

$m=-2\\m^2-6m-5\\=(-2)^2-6(-2)-5\\=4-(-12)-5\\=4+12-5\\=16-5\\=11$

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2 years ago

What's 2×8=??????????????????????????

Fynjy0 [20]

The answer is 16

8+8 = 16 which is 2*8

2*9 = 18

9+9 = 18

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3 years ago

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Which of the following best describes a chord?

Alinara [238K]

Answer:

The Answer is A, a line segment that has both endpoints on a circle.

Step-by-step explanation:

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3 years ago

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Solve for x. -5/4x = -30 Simplify your answer as much as possible.

zlopas [31]

Answer:

The answer is x=24.

Step-by-step explanation:

This is a one step equation, so it is simple, as shown.

In order to isolate the variable, you need to multiply each side of the equation by the fraction's reciprocal. In this case, it is -4/5.

Thus, x= -30 x -4/5

All things said, the answer is x=24.

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3 years ago

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Please help don’t get it ASAP

maxonik [38]

Answer:

Option C is correct.

$38 miles$

Step-by-step explanation:

Let x be the distance cover by Michelle

Given:

A circle diameter is 3 miles.

And Michelle biked around the trail 4 times.

We know that

The circumference of a circle.

circumference = $2\pi r$ ----------(1)

where $r=\frac{Diameter}{2}$

$r=\frac{3}{2} \\r=1.5$ miles

Put $\pi =3.14$ and r value in equation 1.

$circumference = 2\times 3.14 1.5$

$circumference = 9.42 mil;es$

The circumference of a circle is 9.42 miles.

And Michelle biked 4 times, that is equal to 4 $\times$ circumference.

$x = 4\times 9.42$

$x = 37.65 miles$ .

That is equal to 38 miles.

Therefore, Michelle biked around 4 trail is 38 miles.

5 0

2 years ago