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Whitepunk [10]
3 years ago
8

Find the solution set x^2+2x-8=0 separate the two answers with a comma

Mathematics
1 answer:
EastWind [94]3 years ago
3 0

Answer:

  -4, 2

Step-by-step explanation:

The equation can be factored as ...

  (x +4)(x -2) = 0

This has solutions that make the factors zero:

  x = -4, x = 2

The solution set is {-4, 2}.

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What is the best interpretation of the y-intercept of the line?
quester [9]

Answer:

Option D. A student who studies 0 hours can expect to score about a 60 on the test

Step-by-step explanation:

we know that

The y-intercept is the value of the y-coordinate when the value of the x-coordinate is equal to zero

In this problem

The x-coordinate represent the hours spent studying

The y-coordinate represent the Test score

so

For x=0, y=60

That means

A student who studies 0 hours can expect to score about a 60 on the test

3 0
3 years ago
Read 2 more answers
How many meters are equal to 5,253 centimeters?
Arte-miy333 [17]

Answer:

52,530 centimeters

Step-by-step explanation:

<u>Step 1:  Convert Meters into Centimeters</u>

1 meter = 100 centimeter

5253 * 100 = 52,530 centimeters

Answer:  52,530 centimeters

3 0
3 years ago
What is the volume of this?
yawa3891 [41]
Hello there.

Answer: Split the shape into two
Calculate both shapes separately
10 x 10 x 10 = 1000
20 x 20 x 20 = 8000.
Add together both values:
8000 + 1000 = 9000in³

Hope Thus Helps You!
Good Luck Studying ^-^
4 0
3 years ago
Read 2 more answers
Evaluate the expression (-4+4i)(1+4i)(1+4i) and write the result in the form a+bi
allsm [11]

Answer:

Step-by-step explanation:

Since 2 of the 3 binomials are identical I would start the distribution there.

(1 + 4i)(1 + 4i) = 1+8i+16i^2

I'm sure you have learned in class by now that i-squared is = to -1, so we can make that substitution:

1 + 8i + 16(-1) which simpifies to

1 + 8i - 16 which simplifies further to

-15 + 8i.  Now we need to FOIL in the last binomial:

(-15 + 8i)(-4 + 4i) = 60-60i-32i+32i^2

Combine like terms to get

60-92i+32i^2

Again make the substitution of i-squared = -1:

60 - 92i + 32(-1) which simplifies to

60 - 92i - 32 which simpifies, finally, to a solution of:

28 - 92i

8 0
3 years ago
What would be the answer?
cluponka [151]
When you subtract the length of the base from the length of the side, you get
  (ax+9) - (4x+b) = (a-4)x +(9-b)
5 0
3 years ago
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