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2 years ago

How do you simplify -7 (-8)?

Mathematics

1 answer:

MA_775_DIABLO [31]2 years ago

5 0

-7(-8) = 56 [multiplication of two negative numbers gives a positive number]

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Write the number 6,007,200 in two different forms

erik [133]

1 way
six million, seven thousand, and two hundred.

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3 years ago

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The population of a town is 20,000 and is decreasing at a rate of 5% per year. What is the population after 23 years?

AVprozaik [17]

I believe the answer should be approximately 6,147 because you would plug into the equation y=20,000(.95)^t, where t=23.

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3 years ago

First come first served brainiest

Alex17521 [72]

Answer:

1.) A diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.

2.) 8

3.) 201 square inches

Step-by-step explanation:

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2 years ago

What number raised to the -2 exponent would equal 1/4?

serious [3.7K]

Let, the number = x
It would be: x² = 1/4
x = √1/4
x = 1/2

In short, Your Answer would be 1/2

Hope this helps!

5 0

2 years ago

You want to go to the skate park, and you have two options:

Tcecarenko [31]

Answer:

See Explanation

Step-by-step explanation:

Define the variables

Let the entry fee be c and the hourly rate be m

Let the number of hours be x and the total amount be y

Work to solve

For Sami's skate

$c = 6$ and $m = 2$

For Brad's skate

$c =10$ and $m = 1$

The equations

The equation is derived using: $y = mx + c$

For Sami's skate

$y = 2x + 6$

For Brad's skate

$y = x + 10$

When the cost are the same

To do this, we equate both expressions

i.e.

$y = y$

$2x + 6 = x + 10$

$2x -x = 10 - 6$

$x = 4$

i.e. the cost are the same at the 4th hour

What is the cost

Substitute 4 for x in any of the equations

$y = x + 10$

$y = 4 + 10$

$y = 14$

The cost is $14.00

3 0

2 years ago