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schepotkina [342]
2 years ago
15

Warm-Up

Mathematics
2 answers:
kvv77 [185]2 years ago
8 0

The correct matches are shown in the picture after simplification of every expression.

<h3>What is an expression?</h3>

It is defined as the combination of constants and variables with mathematical operators.

We have expressions shown in the picture:

First expression:

= 12x + 8 - 7x - 10

= 5x -2

Second expression:

= 17x/3 + 17 - 2x/3 - 15

= 5x + 2

Third expression:

= 8 - 12x - 10 + 7x

= - 5x - 2

Fourth expression:

= 9 - 9x/2 -x/2 - 7

= -5x + 2

Thus, the correct matches are shown in the picture after simplification of every expression.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ1

Aleks [24]2 years ago
3 0

Answer:

The answers are in order as is shown in the photo:

5x-2

5x+2

-5x-2

-5x+2

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Please help me :) with this math problem, it's exponential functions.
noname [10]

Answer:

f(x) = 9(5/3)^x

Step-by-step explanation:

f(x) = a(b^x)

x = 0

9 = a(b⁰)

9 = a

f(x) = 9(b^x)

x = 1

15 = 9(b¹l

b = 15/9

b = 5/3

f(x) = 9(5/3)^x

8 0
3 years ago
PLEASE HELP ME THIS.. I REALLY NEED<br> HELP
Colt1911 [192]

9514 1404 393

Answer:

  5 hours

Step-by-step explanation:

A quick way to look at this is to compare the difference in hourly charge to the difference in 0-hour charge.

The first day, the charge is $3 more than $12 per hour.

The second day, the charge is $12 less than $15 per hour.

The difference in 0-hour charges is 3 -(-12) = 15. The difference in per-hour charges is 15 -12 = 3. The ratio of these is ...

  $15/($3/h) = 5 h

The charges are the same after 5 hours.

__

If you write equations for the charges, they will look like ...

  y1 = 15 + 12(x -1)

  y2 = 3 + 15(x -1)

Equating these charges, we have ...

  15 +12(x -1) = 3 + 15(x -1)

  12x +3 = 15x -12 . . . . . . . . eliminate parentheses

  15 = 3x . . . . . . . . . . add 12-12x

  x = 15/3 = 5 . . . . . . divide by 3

You might notice that the math here is very similar to that described in words, above.

The charges are the same after 5 hours.

6 0
3 years ago
Use the function to solve the question. What is f(-3) ?
ohaa [14]

Answer:

-3 f

ithink

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If f(×) = 3x + 7, which of these is the inverse of f(x)?​
Snowcat [4.5K]

Answer:

First equate 3x + 7 to any unknown

3x + 7 = P

Then make x the subject of the formula

3x + 7 = P

3x + 7-7= P-7

3x = P-7

3x ÷ 3 = (P-7) ÷ 3

x = (P-7) ÷3

Then interchange x with the unknown which I have as P

x = (P-7) ÷ 3

P = (x-7) ÷ 3

Then inverse of f(x)

is;

f-1(x) = (x-7) ÷ 3

Thank you.

BY GERALD GREAT.

5 0
2 years ago
What percentage of U.S. states have names that start with the letter W
Eduardwww [97]
50 states, 4 start with W (Washington, West Virgina, Wisconsin, Wyoming)
So its 8%
3 0
3 years ago
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