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stealth61 [152]
3 years ago
7

What is the factored form of x²-100?

Mathematics
1 answer:
Schach [20]3 years ago
6 0

Step-by-step explanation:

  • x²-100
  • x²-10²
  • (x-10)(x+10)

hope it helps.

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Simplify<br> 5(x + 3) - x + 2
mash [69]

Answer:

4x+17

Step-by-step explanation:

5(x+3)-x+2

5x+15-x+2

4x+17

5 0
3 years ago
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A is what percent of B?<br><br>d)<br><br>A = 8 oz, B = 1.5 lb <br>Plz help need by today
creativ13 [48]

Answer:

33%  Decimal form: .333333 repeating.

Step-by-step explanation:

Took test. I see the question you was trying to do.

8 0
3 years ago
The sum of two numbers is 44 and the difference is 14. What are the numbers?
Fudgin [204]

Answer:

Hope it may help u

Step-by-step explanation:

The sum of two numbers is 44 and their difference is 14. What are the two numbers? Let's start by calling the two numbers we are looking for x and y.

The sum of x and y is 44. In other words, x plus y equals 44 and can be written as equation A:

x + y = 44

The difference between x and y is 14. In other words, x minus y equals 14 and can be written as equation B:

x - y = 14

Now solve equation B for x to get the revised equation B:

x - y = 14

x = 14 + y

Then substitute x in equation A from the revised equation B and then solve for y:

x + y = 44

14 + y + y = 44

14 + 2y = 44

2y = 30

y = 15

Now we know y is 15. Which means that we can substitute y for 15 in equation A and solve for x:

x + y = 44

x + 15 = 44

X = 29

Summary: The sum of two numbers is 44 and their difference is 14. What are the two numbers? Answer: 29 and 15 as proven here:

Sum: 29 + 15 = 44

Difference: 29 - 15 = 14

6 0
3 years ago
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14. What is the solution of the system? Use elimination.<br> 9x + y = 30<br> 6x - y = 15
klemol [59]

Answer:

x=90/16,y=-150/16

Step-by-step explanation:

Simultaneous equation and we are to use elimination method

9x+y=30...(1)

6x-y=15..(2)

Add (1) and (2)

16x=15

Divide both sides by 16

x=15/16

Then substitute the value of x into (2)

6(15/16)-y=15

90/16-y=15

Substrate 15 from both sides

90/16-y-15=0

Add y to both sides

90/16-15=y

Lcm for only the left side which is 16

90-240/16=y

-150/16=y

Therefore x is 90/16 and y is -150/16

6 0
3 years ago
Is 1.999 an irrational number
rosijanka [135]
Rational Number. 1.999 is a repeating decimal. Repeating decimals, fractions and whole numbers are all rational numbers. 
7 0
3 years ago
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