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Alona [7]
3 years ago
13

I can't figure this out, help-

Mathematics
2 answers:
Leviafan [203]3 years ago
8 0

-2(7-y)+4= -4

-14+2y =-4-4

-14 + 2y = -8

2y = -8+14

y = 6/2

y = 3

shusha [124]3 years ago
5 0
Only thing I can think of is first crossing out +4 and -4, and end up with x = 7, but what the heck
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Sedaia [141]

Answer:

5

Step-by-step explanation:

100= 75 + x2

x=5

6 0
3 years ago
I need help on this question
Vera_Pavlovna [14]
Option B is the answer
8 0
3 years ago
Select the correct answer.
vredina [299]
B this is because the hypotenuse is 8 and during the special right triangle(45,45,90) to find the hyp is xv2
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3 years ago
What is the value of f(-1) when f(x)=2x+2? F(-1)=?
igomit [66]

Here is your function:

f(x)=2x+2

You're looking for f(-1). To get your answer, you have to replace all the x's with -1.

Here is your new equation:

f(-1) = 2(-1)+2

Multiply 2 by -1

2 \times -1 = -2

<em>Remember:</em>

MULTIPLYING

  • Positive(+) times negative(-) is equal to negative
  • Positive(+) times positive(+) is equal to positive
  • Negative(-) times negative(-) is equal to positive
  • Negative(-) times positive(+) is equal to negative

DIVIDING

  • Positive(+) divided by positive(+) is equal to positive
  • Positive(+) divided by negative(-) is equal to negative
  • Negative(-) divided by positive(+) is equal to negative
  • Negative(-) divided by negative(-0 is equal to positive

Since you're multiplying a negative number by a positive number, the answer will be negative.

Here is your new equation:

f(-1) = -2+2

Add -2 and 2:

-2+2 = 0

That means your answer is 0

        ↓

f(-1)=0

<em>If you have any questions, feel free to ask in the comments! :)</em>

5 0
4 years ago
What is 5/8 written as a decimal and a percent?
grandymaker [24]
Im not sure about the percent but as a decimal its <em><u>1.6</u></em>
3 0
4 years ago
Read 2 more answers
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