What is the sum of the expressions (12x+6)+(12x−4)?

Answers

Answer 1

Answer: Answer: 24

Explanation: You’ll have to multiply the numbers. 12x6 = 72. 12x-4 = -48.

72 + (-48)
You remove the parentheses because when there’s a “+” in the front of an expression in parentheses, the expression remains the same.

Therefore, it’s just 72-48. Subtract that and you’ll get 24. Hope this helps! (:

Related Questions

Find the least common denominator (LCD) for the fractions. 1/12 and 3/4 A. 12 B. 4 C. 16 D. 48
A student thinks the sum of 4.3 and 8.4 is 12.7 because 4+8 is 12 and 3+4 is 7. The student then adds 3.7 and 2.6, then gets 5.13 because 3+2 is 5 and 6+7 is 13. Identify the mistake in the students procedure and explain why the procedure won't always work.
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What is the vertex form of f(x)= 5x^2 +20x-16
$3 dollars more than 4 times the cost of a pretzel

Your friend rolls a number cube 500 times. How many times do you think your friend will roll an odd number? Explain your reasoning.

Answers

250, because of probability. Half of the number are full of odd numbers. Half are full of even. The probability will be 1/2. So 1/2 of 500 is 250. So your answer is 250 times.

The equation represents the function f, and the graph represents the function g. f(x)=6x-5A.

The rate of change of f is twice the rate of change of g.

B.

The rate of change of g is twice the rate of change of f.

C.

The rate of change of f is 3 times the rate of change of g.

D.

The rate of change of f is the same as the rate of change of g.

Answers

Answer:

A. The rate of change of f is twice the rate of change of g.

Step-by-step explanation:

The first function is $f(x)=6x-5$

The slope of this function is the coefficient of x. It is the same as the rate of change of f(x)

$m=6$

From the graph, g(x) passes through(-2,-4) and (0,2)

We use the slope formula: $(y_2-y_1)/(x_2-x_1)$ to find the slope of g(x).

$m=(2--4)/(0--2)=(6)/(2) =3$

Since 6=2(3), we conclude that, the rate of change of f is twice the rate of change of g.

Answer:

Step-by-step explanation:

What is the correlatio. coefficient with (2.1)(3.2)(6.8)(7.3)(11.2)(12.6)(13.4)(15.9)

Answers

we know that

The correlation coefficient is a number between $-1$ and $+1$ that represent the linear dependence of two variables or sets of data

Using a Excel tool (CORREL function)

see the attached table

The answer is

The correlation coefficient is $r=0.56$

When solving the equation x2-8x-7=0 by completing the square

Answers

$x^(2) -8x=7 \n x^(2) -8x+(-4)^(2) = 7 + (-4)^(2) \n x^(2) -8x+16 = 7 + 16 \n (x-4)^(2) =23 \n x-4= √(23) \n x-4= \pm 4.8 \n x= \pm 4.8+4$
x = 4.8 + 4 or -4.8 + 4
x = 8.8 or -0.8

keiko works as a tutor for $8 an hour and a waitress for $9 an hour. This month, she worked a combined total of 100 hours at her two jobs. Let t be the number of hours keiko worked as a tutor this month. Write an expression for the combined total dollar amount she earned this month.