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Nesterboy [21]
3 years ago
11

Solve the following system of equations and show all work. y = −x2 + 4 y = 2x + 1

Mathematics
2 answers:
Aneli [31]3 years ago
6 0

Answer:

x=3/4,y=5/2

Step-by-step explanation:

y=-x^2+4,y=2x+1

substitute y=-x^2+4 as y  for y=2x+1

2x+1=-x^2+4, x=3/4(isolate "x")

x=3/4

substitute x=3/4 for 2x+1=-x^2+4

y=2*3/4+1

y=5/2

x=3/4, y=5/2

hope this helps!

likoan [24]3 years ago
6 0

Answer: y = 2.5 and x = 0.75

Step-by-step explanation:

y = -2x + 4

y = 2x + 1

We can use elimination to solve this equation.

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Answer:

See below ~

Step-by-step explanation:

Based on the graph,

  1. <u>f(-3)</u>
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2 years ago
The states C and D spend a total of ​$56.6 million for tourism. The state C spends ​$2.6 million more than the state D. Find the
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Answer:

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Step-by-step explanation:

It may help to just forget about the word "million" and focus on the decimal number part,so one you get the deciaml number you can just put the word million after it as your answer.

First do 56.6 divided by 2, which equals 28.3. Since it said that State C spends 2.6 million more, you hvae to add 28.3 and 2.6 together, which also equals 30.9. So now you know State C spends $30.9 million total. In order to find out how much money State D sends, you have to do 56.6 - 30.9,which comes up to 25.7. So finnaly you know that State C spends 30.9 million dollars and State D spends 25.7 million dollars.

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he can buy 10 peaches.

Step-by-step explanation:

7 mangoes will be 12.25. so you subtract his original money(20) from 12.25 which gives you 7.75. then divide 7.75 by 0.75(cost of a peach) and your answer will be 10(rounded off).

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Answer:

the right answer is b. 2/3

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