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Kaylis [27]
3 years ago
12

What is the factored form of x^2 +8x+15

Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0

Answer:

(x+3)(x+5)

Step-by-step explanation:

what two numbers will multiply to 15 and add up to 8?

3 and 5

so

(x+3)(x+5)

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A^2-C^2<br><br> Factor this expression completely
klemol [59]

Yo sup??

This question can be solved by using the property

a²-b²=(a-b)(a+b)

Here a=A

b=C

plugging in the values

A^2-C^2=(A-C)(A+C)

Hope this helps

3 0
4 years ago
Find the range of possible measures of x if each set of expressions represents measures of the sides of a triangle.
sergiy2304 [10]

Answer:

  • C. x > 3/2

Step-by-step explanation:

<u>According to the triangle inequality theorem, any side length is less than the sum of the other two:</u>

  • x < 2x + 1 + x + 4 ⇒ x < 3x + 5 ⇒ 2x > - 5 ⇒ x > - 2.5
  • 2x + 1 < x + x + 4 ⇒ 2x + 1 < 2x + 4 ⇒ 1 < 4, any value of x
  • x + 4 < x + 2x + 1 ⇒ x + 4 < 3x + 1 ⇒ 2x > 3 ⇒ x > 3/2

<u>Common solution of the three inequalities above is:</u>

  • x > 3/2

Correct choice is C

8 0
3 years ago
Write an algebraic expression to represents the verbal expression: the difference between the product of 4 and a number and the
Naily [24]

Answer:

4n-n^2

Step-by-step explanation:

I use 'n' as the unknown value, but you can use any letter you want as the variable.

The product of four and a number would be represented by '4 * n'. The ideal way to write this would be '4n', even though '4 * n' is also correct in value.

The square of the number would be n². Squaring a number is multiplying a number by itself.

The phrase 'difference between...' means subtraction.

Putting it together:

"The difference between the product of 4 and a number and the square of the number" would be:

4n-n^2

Hope this helps.

4 0
3 years ago
-2.3 - (4.5 - 3 1/2)
Andrej [43]
Your answer will be -5.3
6 0
3 years ago
Read 2 more answers
a builder has built 1/6 of the floors of a new skyscraper.if the builder has built 13 floors,how many floors will the skyscraper
madam [21]
You do 13 times 6

this equals, 78 floors
3 0
3 years ago
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