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
ser-zykov [4K]
3 years ago
12

Combine Like Terms and Evaluate

Mathematics
2 answers:
rosijanka [135]3 years ago
6 0

Answer:

29

Step-by-step explanation:

-2x+4+3y-5x-2y

Combine like terms

-7x+1y+4

evaluate

-7(-3) 1(4) 4

Solve

21+4+4

29

Nady [450]3 years ago
5 0
<h3 /><h2>- 2x + 4 + 3y - 5x - 2y</h2>

if x = - 3 and y = 4

<h3><u>simplification</u> </h3>

<h3>- 2x - 5x + 3y - 2y + 4</h3>

<h3>- 7x + y + 4</h3>

<h3><u>evaluation</u><u> </u></h3>

<h3>- 7x + y + 4</h3>

<h3>- 7 ( - 3 ) + 4 + 4</h3>

<h3>21 + 4 + 4</h3>

<h2>= 29</h2>

hope that helps !

You might be interested in
In Ms. Perron’s class, 75% of the students are boys. There are 18 boys in the class. What is the total number of students in Ms.
Lera25 [3.4K]
I want to say the answer is B
3 0
4 years ago
Read 2 more answers
Jack bought 50 lbs of clay for his art projects. He used 13.2 lbs to make a sculpture, and 0.72 lbs for each mug. How many mugs
KIM [24]

Given :

Jack bought 50 lbs of clay for his art projects. He used 13.2 lbs to make a sculpture, and 0.72 lbs for each mug.

To Find :

How many mugs did Jack make if he had 28.88 lbs of clay left over.

Solution :

Clay required to make 1 mug, r = 0.72 lbs.

Amount of clay left after making sculpture is, T = 28.88 lbs.

Now, number of clay mug Jack can make is :

n = \dfrac{28.88}{0.72}\\\\n= 40.11

Since, number of mug cannot be in decimal, so we take the floor value.

Therefore, number of mug that can be prepared is 40 .

3 0
3 years ago
Factor.<br> 3n^4+21n^3+27n^2<br><br><br> Enter your answer in the box.
asambeis [7]
Factor the following:
3 n^4 + 21 n^3 + 27 n^2

Factor 3 n^2 out of 3 n^4 + 21 n^3 + 27 n^2:

Answer: 3 n^2 (n^2 + 7 n + 9)
5 0
3 years ago
Please helppp with this math question &lt;333
Naya [18.7K]

Answer:

The average rate of change of the function g(x)=x^2+10x+18 over the interval -11 \leq x\leq -1 is -1

Step-by-step explanation:

We are given the function g(x)=x^2+10x+18 over the interval -11 \leq x\leq -1

We need to find average rate of change.

The formula used to find average rate of change is : Average \ rate \ of \ change=\frac{g(b)-g(a)}{b-a}

We have b=-1 and a=-11

Finding g(b) = g(-1)

g(x)=x^2+10x+18\\Putting \ x=-1\\g(-1)=(-1)^2+10(-1)+18\\g(-1)=1-10+18\\g(-1)=9

Finding g(a) = g(-11)

g(x)=x^2+10x+18\\Putting \ x=-11\\g(-11)=(-11)^2+10(-11)+18\\g(-1)=121-110+18\\g(-1)=29

Finding average rate of change

Average \ rate \ of \ change=\frac{g(b)-g(a)}{b-a}\\Average \ rate \ of \ change=\frac{9-29}{-1-(-11)}\\Average \ rate \ of \ change=\frac{-10}{-1+11}\\Average \ rate \ of \ change=\frac{-10}{10}\\Average \ rate \ of \ change=-1

So, the average rate of change of the function g(x)=x^2+10x+18 over the interval -11 \leq x\leq -1 is -1

5 0
3 years ago
PLEASE I NEED HELP. I Don't get this at all:(
klemol [59]

Answer: :,)

Step-by-step explanation:

so u see were the b is in the triangle it want u to find how much b is worth

8 0
3 years ago
Other questions:
  • Increase 250ml by 40%
    10·1 answer
  • 75 people to 25 people what is the percentage of the change?
    15·2 answers
  • How many points does the given equation have in common with the x-axis and where is the vertex in relation to the x-axis. y=x^2-
    9·1 answer
  • -1/2 + (3/4times4/9)=
    14·1 answer
  • What is the product of 5 and 3?<br> 40<br> 0 -13<br> 13<br> 040
    15·2 answers
  • I have no clue how to do this............
    8·2 answers
  • Write the expanded form of the expression.
    8·1 answer
  • If f(x) = 2x and g(x) = sqrt x,what is the domain of (fog)(x)?<br> HELP
    14·1 answer
  • Nancy and her sister went to the store together. After the store, Nancy walked 2 blocks west to get a coffee and her sister walk
    7·1 answer
  • Measure of the following
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!