MATHEMATICS MIDDLE SCHOOL

Find the product of this expression.
(a - 12)(a + 12) =​

Answers

Answer 1
Answer:

Answer:

Combine like terms, a2−144

Step-by-step explanation:

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What is the distributive property of 9(m+4)

Answers

The distributive property is 9m + 9x4

What is the consonant of the word MATH

Answers

M,T,H are consonants
Consonant are M,T,H.

What is the sum of 9c+(8+3c)?

Answers

9c+(8+3c)      
9c+8+3c     (collect like terms)

9c+3c+8
12c+8

12c+8 is the answer.
im not sure if your teacher also wants the answer to be in simplest form so im going to do that below as well:

12c+8      (4*3=12 and 4*2=8. you can take out a 4 from those 2 numbers)

4(3c+2) (this is the simplest form of 9c+(8+3c))

Gerardo says that a cube with edges measure 10 centimeters has a volume that is twice as much as a cube with sides that measure 5 centimeters. Explainand correct Gerardo's error.

Answers

V=LWH
cube
V=L^3
if it is doubled, then each dimention (LWH) is dobubled
since L=W=H
V=(2L)^3
V=8L^3
compared to orignal
L^3 vs 8L^3 it is 8 times more


demonstarte

10^3=1000
5^3=125
1000/125=8, not 2

What is the value of the expression |x + y| + |z| when x = –6, y = 4, and z = –13? PLZZZ HELPP ME!!

Answers

|-6+ 4| + | -13|

|-2| + |-13|

2 + 13

15

What is the percent of increase from 25 to 35?A.
10%

B.
29%

C.
40%

D.
71%

Answers

x - the percent increase

25+25x=35 \ \ \ |-25 \n25x=10 \ \ \ |/ 25 \nx=(10)/(25) \n\Downarrow \nx=(10)/(25)=(10 * 4)/(25 * 4)=(40)/(100)=40\%

The answer is C. 40% increase.
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