1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hitman42 [59]
3 years ago
15

Simplify the expression 6ab + 3ab - 7ab. What is the coefficient of the simplified expression?

Mathematics
2 answers:
Bad White [126]3 years ago
8 0
Simplifying 6ab + 3ab - 7ab
so we can write it 
6ab + 3ab - 7ab = 0 ( because there is nothing on right side ) 
9ab - 7ab = 0
2ab = 0
So the coefficient of ab is 2.

Correct option is C.
loris [4]3 years ago
7 0
To simply to expression 6ab+3ab-7ab, we do:
6ab+3ab-7ab+= (Just do regular addition and subtraction if they have the same coefficent)
9ab-7ab=
2ab
So the answer is C.
You might be interested in
Which expression is equivalent to (82)−4
jok3333 [9.3K]

Answer:

82*-4 or

41*-8

Step-by-step explanation:

because math

4 0
3 years ago
Please help me with precal
Doss [256]

Consider the function f(x)=\sqrt{x}. This function has:

  • the domain x\in [0,\infty);
  • the range y\in [0,\infty).

If the domain of unknown function is [a,\infty), then x\ge a or x-a\ge 0. This means that you have \sqrt{x-a} as a part of needed function.

If the range of unknown function is [b,\infty), then y\ge b. This means that you have to translate function b units up and then the expression of the function is

y=\sqrt{x-a}+b.

Answer: correct choice is B.

6 0
3 years ago
Goodmorning , please help!
Sav [38]

Answer:

7/2

Step-by-step explanation:

17=x+x+10

17-10=2x

7=2x

x=7/2

4 0
3 years ago
Read 2 more answers
How many students must be randomly selected to estimate the mean weekly earnings of students at one college? We want 95% confide
kari74 [83]

Answer:

The sample of students required to estimate the mean weekly earnings of students at one college is of size, 3458.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean (<em>μ</em>) is:

CI=\bar x\pm z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}

The margin of error of a (1 - <em>α</em>)% confidence interval for population mean (<em>μ</em>) is:

MOE=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}

The information provided is:

<em>σ</em> = $60

<em>MOE</em> = $2

The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

Compute the sample size as follows:

MOE=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}

       n=[\frac{z_{\alpha/2}\times \sigma }{MOE}]^{2}

          =[\frac{1.96\times 60}{2}]^{2}

          =3457.44\\\approx 3458

Thus, the sample of students required to estimate the mean weekly earnings of students at one college is of size, 3458.

8 0
3 years ago
It is exponent laws,I don't get it so can you go step by step plz
ipn [44]
I hope this helps you

5 0
3 years ago
Other questions:
  • PLEASE HELP Line A is represented by the equation, y = 1/4x + 5 . (a) Write in slope-intercept form, the equation of a line that
    13·1 answer
  • True or false: The vertical line test may be used to determine whether a relation is a function.
    15·2 answers
  • What 475 rounded to the nearest ten
    15·2 answers
  • True or false ? The polynomial below is a perfect square trinomial of the form A2-2AB+B2 4x2-16x+16
    15·1 answer
  • When the point (-3,2) is reflected across the y-axis, what are the coordinates of the resulting point?
    15·2 answers
  • Find the slope of the line shown on the graph at right.
    15·1 answer
  • -5=3/4x-2 solve for x and please show your work!
    5·1 answer
  • 269.52 / 12 equals 22.46 not rounded​
    9·2 answers
  • A class is made up of 8 boys and 6 girls. Half of the girls wear glasses. A student is selected at random from the class. What i
    12·1 answer
  • Help please, and explain(step-by-step) how the answer would be correct.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!