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3 years ago

Solve the system of equations.

Mathematics

1 answer:

horrorfan [7]3 years ago

3 0

The possible ordered pairs to solve this system are (8, 14) and (6, -12).

To solve this, use the second equation, which is already solved for y and put it in for y in the first equation. From that you will simplify and solve for 0 to get:

-x^2 + 14x - 48 = 0

Factor this and solve to get the possible x values as 8 and 6. Then use them in either equation to find the appropriate values for y.

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5) Is 3 a zero (or root) of f(x) = x3 - 9x2 + 11x + 21?

frozen [14]

Answer:

Yes

Step-by-step explanation:

f(x) = x³ − 9x² + 11x + 21

f(3) = (3)³ − 9(3)² + 11(3) + 21

f(3) = 27 − 81 + 33 + 21

f(3) = 0

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3 years ago

Shanda says that 393 is rational. Allison and Franklin disagree with her. Allison says 393 is an integer while franklin says its

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Answer:

the answer is rational

Step-by-step explanation:

if i am wrong i am very sorry but that is what i have learned so again if i'm wrong sorry

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Step-by-step explanation:

area of trapezoid=(a+b)×h divided by 2

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3 years ago

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Answer:

Step-by-step explanation:

for 1st week=1 ¢

for 2nd week= 2¢

for 3rd week= 4¢

for 4th week=8¢

for 5th week=16¢

for 6th week=32¢

for 7th week=64¢

for 8th week=64+64=128¢

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for 10th week= 256+256=512¢

.: he saved a total of

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3 years ago

The temperature at 12:00 p.m. was 8°C. At 7:00 p.m., the temperature was -6°C. What was the change in temperature (in degrees Ce

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Answer: 14-degree decrease

Step-by-step explanation:

because it is getting colder and we know this because anytime temperature goes from positive to negative it becomes mad cold.

Anyways subtracting 14 from our initial temp at 8 degrees celsius brings us to a brisk -6 celsius

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