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Law Incorporation [45]
3 years ago
12

QUIZ

Mathematics
1 answer:
stepan [7]3 years ago
3 0

eliminating y

x - y = -5

3x + y = 1

________ +

4x = -4

x = -1

eliminating x

• x - y = -5 ....... (x3)

3x + y = 1 ....... (x1)

• 3x - 3y = -15

3x + y =1

___________ -

-4y = -16

y = 4

A. (-1, 4)

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Please help! Will give brainliest
jekas [21]

Answer:

5/16??? I think

8 0
3 years ago
F(x)=-2x-1 and g(x)=x^2-1. Find (fog)(-5).
serg [7]

Answer: - 49

Step-by-step explanation:

f(x) = -2x - 1

g(x) = x^{2} - 1

fg(x) = f (x^{2} - 1) , we just put in the value of g(x) , the next thing is to substitute x^{2} - 1 for the value of x in f(x) , that is

fg(x) = -2(x^{2} - 1) - 1

fg(x) = -2x^{2} + 2 - 1

fg(x) = -2x^{2} + 1

Therefore : fg(-5) means we will substitute -5 for x in fg(x) , that is

fg(-5) = -2 ((-5)^{2} + 1

fg(-5) =  -2(25) + 1

fg(-5) = -50 + 1

fg(-5) = -49

7 0
3 years ago
4) A zoologist was checking the weights of three gorillas. Gorilla A weighed 559 pounds, gorilla B weighed 827 pounds and gorill
miss Akunina [59]

Answer:

1,516 pounds

Step-by-step explanation:

Gorilla A weighed = 559 pounds Gorilla B weighed = 827 pounds Gorilla C weighed = 130 pounds

Total weight of the gorillas = gorilla A + gorilla B + gorilla C

= 559 pounds + 827 pounds + 130 pounds

= 1,516 pounds

Total weight of the gorillas = 1,516 pounds

6 0
3 years ago
6. A home repair crew charges seventy-five dollars per day plus two
ludmilkaskok [199]

Answer:

6 hours

Step-by-step explanation:

all you do is 10 divided by 6 then 0 -3-3-6-6-5-6 and you gt 10

6 0
3 years ago
my son is 12 years old and his brother is 6 years time Johnson will be twice as old as his brother how old are they now ​
Marat540 [252]

Answer:

12

Step-by-step explanation:

Brainly pls

7 0
3 years ago
Read 2 more answers
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