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zysi [14]
4 years ago
8

Simplify this expression. (2+3)(5-7)

Mathematics
2 answers:
brilliants [131]4 years ago
7 0

Answer:

-10

Step-by-step explanation:

(2+3)(5-7)

PEMDAS says do what is in the parentheses first

(5) ( -2)

Then multiply the parentheses

-10

Svetradugi [14.3K]4 years ago
4 0

Answer:

-10

Step-by-step explanation:

(2+3)(5-7)

(5)(-2)

5*(-2)

-10

You might be interested in
What does 11/6 equal<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B11%7D%7B6%7D%20" id="TexFormula1" title=" \frac{11}{6} "
nirvana33 [79]

It can be turned into a mixed number: 1\frac{5}{6}

hope that helps :) ✨

3 0
3 years ago
Which fractions are equivalent to -15/4? Select all that apply. A: -15/4 B:-15/-4 C:15/-4 D:15/4 E:- 4/15 F:4/-15
Tanya [424]

Answer:

-15/4

C:15/-4

Step-by-step explanation:

a negative number divided by another negative number gives a positive number : -15 / - 4 = +3.75

-15/4 and 15/-4 = -3.75

15/4 = 3.75 (two positive numbers divided with each other yields a positive number)

-4/15 and 4 / -15 = 0.27

7 0
3 years ago
(x+5)(x-4)(x+2) is identical to x^3+ax^2
nikdorinn [45]

Answer:

a = 3

Step-by-step explanation:

Factorize (x+5)(x-4)(x+2)

(x+5)(x-4)(x+2)

=  (x²-4x+5x-20)(x+2)

= (x²+x-20)(x+2)

= (x³+2x²+x²+2x-20x-40)

= x³+3x²-18x -40

Compare with x^3+ax^2

3x² = ax²

3 = a

Rearrange

a = 3

Hence the value of a that makes the expressions identical is 3

4 0
3 years ago
One more than three times a number is the same as four less than double a number
brilliants [131]

Answer:

3x + 1 = 2x - 4.  x = -5

Step-by-step explanation:

3 0
4 years ago
How do I find the GCF OF 3 numbers
kolezko [41]
Keep diving each of them by a number and see if it matches. For example I have 25, 50, and 100. The gcf is going to be 5. 
6 0
3 years ago
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