Mathematics
11.11.2021 01:02
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1. distribute to simplify the expression: 3 ( 2x + 5y - 4) choices: 6x + 15y - 12

1. distribute to simplify the expression:

3 ( 2x + 5y - 4)

choices:

6x + 15y - 12

21xy + 12

6x + 15x + 12

21xy - 12

2. what is the value of the expression when c = 4?

4c + 3c -2c + 5

choices:

25

14

33

16

3. factor the expression:

55x - 25

choices:

5 ( 11x - 5)

11 ( 5x - 5)

5 ( 5x + 5)

11 ( 5x + 5)
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khuak877
khuak877
4,8(68 marks)

1. 6x+15y-12

2. 25

3. 5(11x-5)

Step-by-step explanation:

1. We have the expression 3(2x+5y-4) we have to distribute number 3 to simplify the expression:

3(2x+5y-4)=\\3.(2x)+3.(5y)-3.(4)=\\=6x+15y-12

Then the correct answer is the first choice: 6x+15y-12

2. We have to find the value of the expression when c=4, we have

f(c)=4c + 3c -2c + 5

Then when c=4:

f(4)=4.(4) + 3.(4) -2.(4)+ 5\\f(4)=16+12-8+5\\f(4)=28-3\\f(4)=25

Then the correct answer is the first choice: 25

3. We have to factor the expression 55x-25,

we can see that (5).11=55 and (5).5=25, then the common factor in this expression is number 5,

55x-25=\\(5).11x-(5).5=\\=5(11x-5)

Then the correct answer is the first choice: 5(11x-5)

izzysmith6836
izzysmith6836
4,4(97 marks)

Jamal has the better record because his record is 0.7 and Brian’s record is 0.625. Jamal made more free throws.

Step-by-step explanation:

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