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
siniylev [52]
3 years ago
15

Write an expression that is equivalent to (3b+6) + 2

Mathematics
2 answers:
saw5 [17]3 years ago
8 0
You can just add the 2, and you have a new expression:
(3b+6)+2 = 3b+8

That's your answer!

cluponka [151]3 years ago
3 0
Since you're not multiplying, you can remove the parentheses.

3b+6+2

which gives you . ....

3b+8
You might be interested in
Show work please~
love history [14]

For every 1 cup of blue paint, \frac{10}{4} cups of red paint are needed

For every 1 cup of red paint, \frac{4}{10} cup of blue paint is needed

For every 4 cups of red paint, \frac{16}{10} cups of blue paint are needed

<em><u>Solution:</u></em>

Given that, there are 3 1/3 red cups of paint for every 1 1/3 cups of blue paint

Therefore, ratio is

Red : blue = 3\frac{1}{3} : 1\frac{1}{3}\\\\Red : blue = \frac{10}{3} : \frac{4}{3}

<h3><u>For every 1 cup of blue paint, ___ cups of red paint are needed</u></h3>

Let "x" be the cups of red paint needed

Then we get,

\frac{10}{3} : \frac{4}{3}\\\\x : 1

This forms a proportion

1 \times \frac{10}{3} = \frac{4}{3} \times x\\\\x = \frac{10}{4}

Therefore, 10/4 cups of red are needed for 1 cup of blue

<h3><u>For every 1 cup of red paint, ___ cup of blue paint is needed</u></h3>

Let "x" be the cups of blue paint needed

Then, we get

\frac{10}{3} : \frac{4}{3}\\\\1 : x

This forms a proportion

\frac{10}{3} \times x = \frac{4}{3} \times 1\\\\x = \frac{4}{10}

Thus, 4/10 cups of blue are needed for 1 cup of red paint

<h3><u>For every 4 cups of red paint,___ cups of blue paint are needed</u></h3>

Let "x" be the cups of blue paint needed

Then, we get

\frac{10}{3} : \frac{4}{3}\\\\4 : x

This forms a proportion

\frac{10}{3} \times x = \frac{4}{3} \times 4\\\\x = \frac{16}{10}

Thus 16/10 cups of blue paint are needed for every 4 cups of red paint

5 0
3 years ago
Use the discriminant to determine the number and type of solutions the equation has.
White raven [17]
x^2 + 8x + 12 = 0\\ \\a=1 , b= 8, c= 12 \\ \\ \Delta =b^2-4ac = 8^2 -4\cdot1\cdot12= 64-48= 16\\ \\\Delta > 0 \\ \\ Answer : \ C. \ \ two \ rational \ solutions


5 0
3 years ago
Read 2 more answers
3. A rumour is being spread in a community that the president is going to retire before the next election 2015. Initially 2 peop
Vera_Pavlovna [14]

Answer:

I'm not sure if that's what is meant cuz the text is a little ambiguous

Nevertheless, 62 people

Step-by-step explanation:

Amount = 2 + 4 + 8 + 16 + 32 =62 people

"Exponential Growth"

4 0
3 years ago
Read 2 more answers
A particle moving in a planar force field has a position vector x that satisfies x'=Ax. The 2×2 matrix A has eigenvalues 4 and 2
andrey2020 [161]

Answer:

The required position of the particle at time t is: x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}

Step-by-step explanation:

Consider the provided matrix.

v_1=\begin{bmatrix}-3\\1 \end{bmatrix}

v_2=\begin{bmatrix}-1\\1 \end{bmatrix}

\lambda_1=4, \lambda_2=2

The general solution of the equation x'=Ax

x(t)=c_1v_1e^{\lambda_1t}+c_2v_2e^{\lambda_2t}

Substitute the respective values we get:

x(t)=c_1\begin{bmatrix}-3\\1 \end{bmatrix}e^{4t}+c_2\begin{bmatrix}-1\\1 \end{bmatrix}e^{2t}

x(t)=\begin{bmatrix}-3c_1e^{4t}-c_2e^{2t}\\c_1e^{4t}+c_2e^{2t} \end{bmatrix}

Substitute initial condition x(0)=\begin{bmatrix}-6\\1 \end{bmatrix}

\begin{bmatrix}-3c_1-c_2\\c_1+c_2 \end{bmatrix}=\begin{bmatrix}-6\\1 \end{bmatrix}

Reduce matrix to reduced row echelon form.

\begin{bmatrix} 1& 0 & \frac{5}{2}\\ 0& 1 & \frac{-3}{2}\end{bmatrix}

Therefore, c_1=2.5,c_2=1.5

Thus, the general solution of the equation x'=Ax

x(t)=2.5\begin{bmatrix}-3\\1\end{bmatrix}e^{4t}-1.5\begin{bmatrix}-1\\1 \end{bmatrix}e^{2t}

x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}

The required position of the particle at time t is: x(t)=\begin{bmatrix}-7.5e^{4t}+1.5e^{2t}\\2.5e^{4t}-1.5e^{2t}\end{bmatrix}

6 0
3 years ago
10. Name the one example of Analog computer​
BartSMP [9]

Answer:

example of Analog computer=

Operational amplifiers

6 0
3 years ago
Read 2 more answers
Other questions:
  • Write a rule for the linear function in the table.
    6·1 answer
  • Haley is comparing the cost of a fresh lobster dinner at two different restaurants. The first restaurant charges $29 for the mea
    10·1 answer
  • How are discontinuities and zeros created in rational expressions, and in what ways can they be accounted for graphically?
    9·1 answer
  • Solve the following inequality. Then place the correct answer in the box provided. Answer in terms of an mixed number. 8P + 2 &g
    15·2 answers
  • If 5 cans of baked beans cost $2.85, how<br> many cans of baked beans can be bought<br> for $19.38?
    10·1 answer
  • Mr. Dylan asks his students throughout the year to record the number of hours per week they spend practicing math at home. At th
    12·1 answer
  • During his workout, Elan spent 28% of the time ob the treadmill. What fraction of his workout was in the treadmill?
    11·2 answers
  • Academic advising: In 2014, the Community College Survey of Student Engagement reported that 32% of the students surveyed rarely
    6·1 answer
  • What is 7 fewer than a number s
    11·1 answer
  • Can't seem to solve this one
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!