How to simplify

(-0.75x+6)-(2.5x-1.9)

Answers

Answer 1

Answer: Multiply x and 0.75
Multiply x and 1
The x just gets copied along.
The answer is x
x
0.75*x evaluates to 0.75x
Because of the minus sign
0.75x becomes - 0.75x
The answer is -0.75x
-0.75*x+6 evaluates to -0.75x+6
Multiply x and 2.5
Multiply x and 1
The x just gets copied along.
The answer is x
x
2.5*x evaluates to 2.5x
2.5*x-1.9 evaluates to 2.5x-1.9
To subtract the polynomials -0.75x+6 and 2.5x-1.9 we try to subtract terms in one polynomialwith any like terms in the other polynomial.
Be very careful with the "-" sign in front of 2.5x-1.9 it is to be used on all terms in it.
-0.75x - 2.5x = -3.25x
6 - -1.9 = 7.9
The answer is -3.25x+7.9
(-0.75*x+6)-(2.5*x-1.9) evaluates to -3.25x+7.9

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Rhee and Pamela are two of the 5 members of a band. Every week, the band picks two members at random to play on their own for five minutes. What is the probability that Rhee and Pamela are chosen this week?

Answers

There is a 40% chance that Rhee and Pamela will be chosen. I got my answer by dividing 2 and 5 to get the percent.

How many years from 1875 to 1985

Answers

1875
- 1985
__________
110

110 years apart. Just subtract the little number from the big one.

If F(x)= 2x and G(x) = log x, find F[G(x)]
A. 2logx
B. log2x
C. 2xlogx

Answers

put g(x) in for x everywhere in f(x)

f(x) = 2x

f(g(x)) = 2g(x)

f(g(x) = 2(log(x))

Choice A

Ross needs to buy a countertop for a laundry room. He calculated the area to be 12 square feet. The actual area is 11.8 square feet. What is Ross's percentage error?

Answers

The formula for percentage error is:

$\sf{Percentage~ error= (|Approximate ~-~ Actual|)/(|Actual|)}$

Ross got the approximate area as 12, while the actual area was 11.8. So, let's plug it in to the formula.

$\sf{Percentage~ error= (|Approximate ~-~ Actual|)/(|Actual|)= (|12-11.8|)/(|11.8|)= (|0.2|)/(|11.8|)= (0.2)/(11.8) \approx 0.0169 }$

Multiply 0.0169 by 100 to make it into a percent.

0.0169 * 100 = 1.69%

Ross's percentage error is 1.69%.

Answer: B - 1.69%

I took the test, trust me.

What are the measures of Q and M for parallelogram. (32x-18)°M (25x+10)°

Answers

Answer: this is what i know

Houghton Mifflin Harcourt Publishing Company Holt McDougal Analytic Geometry Challenge 1. Triangle Sum 2. m 7 3. 90° 4. m 5 5. 180° 6. 180°

PLZ HELP DUE TODAY AND IDK HOW TO DO IT PLZThe high school's lunch menu repeats every 6 school days. The middle school lunch menu repeats every 8 school days. On March 5th, both schools served chicken wraps.

What is the next calendar date on which both schools will serve chicken wraps?