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KIM [24]
2 years ago
7

PLEASE ASNWER ILL GIVE BRAINLIEST

Mathematics
1 answer:
deff fn [24]2 years ago
3 0

Answer:

8.6

Step-by-step explanation:

a^2+b^2=c^2

7^2+5^2=c^2

49+25=c^2

74=c^2

8.6=c

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You are choosing between two different cell phone plans. The first plan charges a rate of
Zolol [24]

Answer:

at least 450 minutes

Step-by-step explanation:

Find an expression for the cost of each plan as a function of the number of minutes. Set the expressions equal to each other, and solve for the number of minutes.

Let x = number of minutes.

First plan:

cost (in dollars) = 0.21x

Second plan:

cost (in dollars) = 0.11x + 44.95

Set the expressions equal:

0.21x = 0.11x + 44.95

Subtract 0.11x from both sides.

0.1x = 44.95

Divide both sides by 0.1

x = 44.95/0.1

x = 449.5

Since you cannot have a fraction of a minute, the answer is 450 minutes.

3 0
2 years ago
Owen uses colored pencils on his homework assignment.
geniusboy [140]
21.325 is the correct answer
8 0
3 years ago
Read 2 more answers
It has been estimated that a student's final grade in a course decreases by 5 points for every 2 days absent from class. If a st
OverLord2011 [107]

Answer:

the final grade will decrease by 10 points

3 0
2 years ago
Y = f(x) = -1<br> Find f(x) v/hen x = 3.
-Dominant- [34]

Answer:

f(x) is equal to -1 when x=3

Step-by-step explanation:

we have

y=f(x)=-1

This is a constant function

we know that

A <u>constant function</u> is a function whose output value is the same for every input value

therefore

when x=3 (input value)

The value of the function is y=-1 (output value)

6 0
2 years ago
Need answer for this please.
balu736 [363]

Answer:

y= - 5x+40

Step-by-step explanation:

I graphed this out. Remember that in parallel lines, the slopes are always the same.  

4 0
2 years ago
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