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e-lub [12.9K]
3 years ago
15

Y=-2x - 6 y = x +9 Solve each system of equations using substitution or elimination.

Mathematics
1 answer:
vekshin13 years ago
3 0

Answer:

x=-7/2, y=1

Step-by-step explanation:

y=-2x-6

y=x+9

I'm going to use elimination.

2y=2x+9

y=-2x-6

3y=3

y=1

Enter y into one of the equations to find x.

2=2x+9

2x=-9+2

2x=-7

x=-7/2

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Umnica [9.8K]

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I hope u will understand .

hawa xa explanation tei pani herea bujxa hola .

5 0
3 years ago
Solve:<br> -5+2*4^(2x-5)=151
SOVA2 [1]

<u>Approximately 0.4</u> when rounded to  the nearest tenth. Simplify all the way, and then pull the exponents out and solve with the exponents.

Simplified version was:

2^1   x   2^(4x-10)  = 2^(156x-390)

then you would have,

1  +  4x  -  10  =  156x  -  390       solve that

5 0
4 years ago
What is the remainder when f(x) = x^2 + 14x − 8 is divided by (x − 5)? 103 88 87 72
Annette [7]

Answer:

The remainder is 87.

Step-by-step explanation:

By definition of remainder theorem, whenever a polynomial f(x) is divided by (x-b) the remainder will be: f(b)

Following the Remainder Theorem, in this question the remainder will be f(5).

In this case we were given f(x) as

f(x) = x^2 + 14x − 8

We're are to find the remainder when it is divided by (x-5)

Then(x-5)= 0

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If we substitute x=5 into equation of f(x), we will have the remainder of

f(x) = x^2 + 14x − 8

f(4)= (5)^2 +14(5)-8

f(4)=25+70-8

f(4)=87

Hence, The remainder is 87.

7 0
3 years ago
The fastest a human has ever run is 27 miles per hour. How many miles per minute did the human tu
malfutka [58]
We have, 1 hour = 60 minutes Given, 27 miles per hour = \frac{27~miles}{1 ~hour} = \frac{27~miles}{60~minutes} because 1 hour = 60 minutes = \frac{0.45~miles}{1 ~minute} So, the human ran at a speed of 0.45 miles per minute
5 0
3 years ago
Please help thank you
mrs_skeptik [129]

Answer:

(-5,-2)

Step-by-step explanation:

because the point is 5 to the left of the origin and 2 down from the origin

5 0
3 years ago
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