What multiplies to -9 and adds to 8

Answers

Answer 1

Answer: 9 and -1 9*-1=-9 and 9-1=8

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Suppose Galileo and his assistant were 1 km apart when Galileo uncovered his lantern to try to measure the speed of light. How long would it have taken the light signal to reach his assistant?

Answers

There are many theories and measurement for the speed of light. It is believed that light travels at 299,792 km per second. In the earlier day philosopher Aristotle believed that light didn't travel but happens instantaneously. Therefore, for Galileo and his assistant to be only 1km apart, I would have to agree with Aristotle theory of light traveling instantaneously.

I HAVE 5 MATH QUESTIONS AND I NEED HELP ASAP. ONLY COMMENT IF YOU'RE GONNA HELP ME PLEASE. THANKS! QUESTIONS ARE PASTED BELOW.

Answers

1. (2,3)
2. (-1,-1)
3. infinitely many
4. coincident
5. consistent independent, coincident, inconsistent (in that order)

Heyyyyyyyyyyy!so uhm help please!

16500 rounded to the nearest whole numberrrr

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? it’s already rounded, is there supposed to be a decimal?

Which river system is not a location of the first civilizations?Nile
Indus
Yangtze
Tigris and Euphrates

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I think the correct answer from the choices listed above is the third option. It is the Yangtze river system that is not a location of the first civilizations. It is Nile, Indus and the Tigris and Euphrates rivers that have a big impact on the first civilizations.

The answer is the Yangtze river.

1057 is not a perfect square

Answers

Answer:

Are you asking or telling? Bc it looks like ur telling

Step-by-step explanation:

What value of x makes the equation true?–4.9 = –5.7 + x
a. x = –10.6
b. x = –0.8
c. x = 0.8
d. x = 10.6

Answers

-4.9=-5.7+0.8
-4.9=-4.9
Answer is C

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Solve the following system of equations . Enter the y-coordinate of the solution . Round your answer to the nearest tenth. 5x+2y =7. -2x+6y=9

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What is the equation of a horizontal line that passesthrough the point (-4, -5)?