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Ostrovityanka [42]
3 years ago
10

Find the percent of increase or decrease. 55mph to 70mph

Mathematics
1 answer:
sladkih [1.3K]3 years ago
8 0
From 55 mph to 70 mph is a 36% increase.

I hope this helped!
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What are the x-intercepts of y=x^2+2x-15
Sedbober [7]

Answer:

(-5,0) and (3,0)

Step-by-step explanation:

Think about it.

What two numbers multiply to -15 and add up to 2?

The answers are 5 and -3.

So plug that into the factored form of a parabola.

y=(x+5)(x-3)

To find the x-intercepts, plug in 0 for y.

(x+5)(x-3)=0

Since we are multiplying, at least one of the terms has to equal 0.

x+5=0 \\ x-3=0 \\ \\ x=-5,3

So the x-intercepts are (-5,0) and (3,0).

8 0
3 years ago
The following table shows how far a runner has gone in t minutes. Which of the following represents this information?
BigorU [14]

Answer:

The correct answer is B) d=250t.

Step-by-step explanation:

B is the correct answer because the total distance (d) equals 250 multiplied by the minutes (t) the runner has ran.

7 0
3 years ago
A cone has a radius of 5 cm and a height of 9 cm. What is the volume of the cone to the nearest whole number? Use 3.14 for pi.
Katyanochek1 [597]

Answer:

235or 236

Step-by-step explanation:

A cone has a radius of 5 cm

a height of 9 cm

Volume of cone =1/3πr^2h

=1/3×3.14×5×5×9

= 3.14×25×3

=3.14×75

=235.5

=235or 236 is the answer

8 0
3 years ago
I NEED THIS DONE TODAY WHOEVER GETS THIS CORRECTS GETS BRAINLIEST!!!!<br> PLZZZ HELPP MEEE!!!!!
Mila [183]
U can multiply on some answers but some are trick questions
8 0
3 years ago
Can the equation of every line be written in slope intercept form
Igoryamba
Yes. I think so. Even if there is not intercept the intercept is 0
3 0
3 years ago
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