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nirvana33 [79]
2 years ago
9

Evaluate each expression when x = 8, and z = 10

Mathematics
1 answer:
sveticcg [70]2 years ago
7 0

Answer:

x = 2

y = 4

z = 8

1. xy

10

2. x + z

8

3. z - y

4

4. x + y + z

14Step-by-step explanation:

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PLEASE!!!
ANEK [815]

9514 1404 393

Answer:

  1. 30m +50 = 20m +100
  2. m = 5
  3. yes. symmetric property of equality.

Step-by-step explanation:

1. The expression for c in the first equation is (30m+50). Substituting that for c in the equation ...

  c = 20m +100

gives you ...

  30m +50 = 20m +100

__

2. Adding -50-20m to both sides gives ...

  10m = 50

  m = 5 . . . . . . . divide by 10

__

3. Doing the substitution in reverse, you would substitute (20m+100) for c in the equation ...

  c = 30m +50

to get ...

  20m +100 = 30m +50

This is the equation of part 1 with the expressions swapped to the other side of the equal sign. The symmetric property of equality tells you that changing sides of the equal sign does not change the value of the variable(s).

You get the same solution.

3 0
3 years ago
Part of the graph of the function f(x) = (x – 1)(x + 7) is shown below. Which statements about the function are true?
BaLLatris [955]

Answer:

the answers are B,C,D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
When calculating the area of a circle for diameter and radius is our answer going to be(example) 21 cm square???
sveticcg [70]

Answer:

yes

Step-by-step explanation:

you put answer in end

8 0
3 years ago
2. Which of the following phrases means "is not greater than or equal to"?
ruslelena [56]
I'm pretty sure it would be "is at most" "is less than" and "does not exceed"
7 0
3 years ago
I need help with this question
Artemon [7]
8x+5xsquared+3
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