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3 years ago

Help! Please help!,!

Mathematics

1 answer:

kati45 [8]3 years ago

7 0

Answer:

use the pythagoras theorem ok for 3rd side

i.e. (5.6)²+(3.9)²=c²

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One side of a square is 4x, what is the area of this square?

Degger [83]

Answer:

16x^2

Step-by-step explanation:

To find the area of a square, we use the formula

A = s^2 where s is the side length

A = (4x)^2

A = 16x^2

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3 years ago

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2 years ago

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The local cable company charges $90 per month for basic and $12 per month for each additional premium cable channel.The function

Alika [10]

Answer:

2 additional premium channels

Step-by-step explanation:

Using the given function, we substitute c(x) = 114 and solve for x:

114 =90 + 12x

Subtract 90 from both sides:

24=12x

Divide both sides by 12:

2=x

So you have ordered 2 additional premium channels.

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3 years ago

How can you find the radius of this shape?

V125BC [204]

Answer:

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Step-by-step explanation:

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3 years ago

You go to an arcade and purchase a card with game credits. After playing 5 games you have 33 credits left. You play 4 more games

Amanda [17]

Answer:

$y=-3x+48$

Step-by-step explanation:

We will use slope-intercept form of equation to write our equation. The equation of a line in slope-intercept form is: $y=mx+b$ , where m= Slope of the line, b= y-intercept.

To write the equation that represents the number of credits y on the cards after x games, we will find slope of our line.

We have been given that after playing 5 games we have 33 credits left. We play 4 more games and we have 21 credits left. So our points will be (5,33) and (9,21).

Let us substitute coordinates of our both given points in slope formula: $m=\frac{y_2-y_1}{x_2-x_1}$ ,