3 years ago

N squared minus eight N minus twenty equals 0

Mathematics

1 answer:

erica [24]3 years ago

6 0

Answer:

n = -2 or n = 10

Step-by-step explanation:

n^2 - 8n - 20 = 0

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The base fare per ride on the MTA bus or subway is $2.75, but you get a 5% discount with a purchase. A weekly unlimited MetroCar

Nikolay [14]

"13" or "more than 13" rides will make the weekly unlimited pass more cost effective. A further solution is provided below.

The given values are:

Base fare per ride = $2.75
Discount = 5%
Weekly unlimited Metro Card costs = $32

The Fare after discount will be:

= $2.75\times \frac{100-5}{100}$

= $2.75\times \frac{95}{100}$

= $2.75\times 0.95$

= $2.6125$ ($)

hence,

In $32, the minimum number of rides will be:

= $\frac{32}{2.6125}$

= $12.24$

or,

= 13

Learn more:

brainly.com/question/6439224

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2 years ago

PLEASE HELP 15 POINTS!!!!!!

pychu [463]

Area of a triangle: (b*h) /2
So :
(14,5 * 10.5) /2
=152,25 /2
= 76.125

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3 years ago

Can anyone please help me with this question? Soon as possible.

olga_2 [115]

I think the answer is y=-2(x-2)^2+6

8 0

2 years ago

3 is what percentage of 12?

marin [14]

Answer:

25%

Step-by-step explanation:

First you have the fraction of 3/12 and need to turn it into a decimal. So to do that you divide 3 by 12 = 0.25. So your percent is 25%

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3 years ago

Which trinomial is equivalent to (3x-2)(x+4)

Vinil7 [7]

$(3x-2)(x+4)=\\
3x^2+12x-2x-8=\\
3x^2+10x-8$

6 0

2 years ago