All categories

3 years ago

Simplify the expression: -12 - 4x + 9 + -10 + 8x

Mathematics

2 answers:

beks73 [17]3 years ago

5 0

Answer:

4x - 13 there you go!!!

Step-by-step explanation:

Ann [662]3 years ago

4 0

Answer:

Step-by-step explanation:

4x-13

You might be interested in

What is the slope of the line shown below?

Brrunno [24]

The slope is D) 4/11.

4 0

3 years ago

Read 2 more answers

Find the inverse of the given function.

kodGreya [7K]

For this case we must find the inverse of the following function:

$f (x) = - \frac {1} {2} \sqrt {x + 3}$

We follow the steps below:

Replace f(x) with y:

$y = -\frac {1} {2} \sqrt {x + 3}$

We exchange the variables:

$x = - \frac {1} {2} \sqrt {y + 3}$

We solve for "y":

$- \frac {1} {2} \sqrt {y + 3} = x$

Multiply by -2 on both sides of the equation:

$\sqrt {y + 3} = - 2x$

We raise both sides of the equation to the square to eliminate the radical:

$(\sqrt {y + 3}) ^ 2 = (- 2x) ^ 2\\y + 3 = 4x ^ 2$

We subtract 3 from both sides of the equation:

$y = 4x ^ 2-3$

We change y by f ^ {- 1} (x):

$f ^ {- 1} (x) = 4x ^ 2-3$

Answer: $f ^ {- 1} (x) = 4x ^ 2-3$

7 0

4 years ago

Read 2 more answers

Please help it’s just one question <3

posledela

The answer for this is B.

6 0

3 years ago

Find five numbers so that the mean, median, mode and range are all 4

Anton [14]

Answer:

4, 4, 4, 4, and 4

Step-by-step explanation:

mode = 4

median = 4

so we know two of the five numbers are 4;

$(x+x+x+4+4)/5 =4$

$(3x+8x)/5 = 4$

multiply both sides by 5

$3x+8=20\\3x=20-8\\3x=12\\x=4\\$

therefore; the numbers are all 4

4 0

3 years ago

David had $46 in his savings account he wants to save $10 per week for the next 4 weeks in order to save up for the new NBA 2K g

Helga [31]

after four weeks he has 86 dollars. after everything he has 50 dollars

3 0

4 years ago