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Umnica [9.8K]
3 years ago
6

SOMEONE PLEASE HELP!!

Mathematics
2 answers:
dsp733 years ago
7 0

Answer:

It's the first one I think

xz_007 [3.2K]3 years ago
6 0

Step-by-step explanation:

Compound inequalities :A compound inequality is a sentence with two inequality statements joined either by the word “or” or by the word “and.” “And” indicates that both statements of the compound sentence are true at the same time. It is the overlap or intersection of the solution sets for the individual statements .

THE CORRECT ANSWER IS THE LAST ONE ..

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What is -2(a+b)= -2a - 2b
exis [7]

Answer:

-2(a+b)=-2a-2b  

Equation is alway true

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    -2*(a+b)-(-2*a-2*b)=0  

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (0 -  2 • (a + b)) -  (-2a - 2b)  = 0  

Step  2  :

Equation at the end of step  2  :

 0  = 0  

Step  3  :

Equations which are always true :

3.1    Solve   0  = 0This equation is a tautology (Something which is always true)

Equation is alway true

Step-by-step explanation:

7 0
3 years ago
Two rectangles are shown below. Rectangle P has a perimeter of 20 inches.
arsen [322]

Answer:

c) j=2 and h=4

Step-by-step explanation:

h+h+j+4+j+4=20

3h+3h+j+1+j+1=30

2h+2j+8=20

6h+2j+2=30

multiply the first equation by -3

-6h-6j-24=-60  

this equals

-6h-6j=-36

6h+2j=28

-4j=-8

j=2

Since j=2

2h+2(2)+8=20

2h+12=20

2h=8

h=4

3 0
2 years ago
Sandy works at a clothing store. She makes $7 per hour plus earns 10% commission on her sales. She worked 80 hours over the last
maks197457 [2]

Answer:

Option C. $798

Step-by-step explanation:

we know that

The total hours worked the last two weeks ( 80 hours) multiplied by $7 per hour plus the 10% commission on her sales ($2,384) is equal  to the amount of money that Sandy earned for those two weeks

Remember that

10\%=10/100=0.10

so

80(7)+0.10(2,384)

\$560+\$238.4=\$798.40

7 0
3 years ago
Simplify 79.5-2.58 x (3.63-1.63) to the third power
trapecia [35]

Answer:

a

Step-by-satep explanation:

3 0
2 years ago
Solve the inequality -2/9b>-12
trapecia [35]

Answer:

1/2

Step-by-step explanation:

3 0
3 years ago
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