Find the sum: (7b
-2) + (-4b + 5)

Answers

Answer 1

Answer:

[tex]=3b+3[/tex]

Step-by-step explanation:

[tex]\mathrm{Remove\:parentheses}:\quad \left(a\right)=a[/tex], [tex]=7b-2-4b+5[/tex].

[tex]\mathrm{Group\:like\:terms}[/tex]:

[tex]=7b-4b-2+5[/tex]

[tex]\mathrm{Add\:similar\:elements:}\:7b-4b=3b[/tex]

[tex]=3b-2+5[/tex]

[tex]\mathrm{Add/Subtract\:the\:numbers:}\:-2+5=3[/tex]

[tex]=3b+3[/tex]


Related Questions

If 1/4 of a gallon is enough for 1/3 of a room, how much paint would you need to paint four rooms?

Answers

3/6 will do the 4 rooms

Answer:

you would use 3/4 of a gallon per room, so you would multiply 3/4 x 4., which equals 3 gallons

Simplify the expression to a + bi form:
(8 – i) – (10 – 8i)

Answers

Answer:

-2+7i

Step-by-step explanation:

(8-i)-(10-8i)

8-i-10+8i

8-10-i+8i

-2+7i

Answer:-2+7i

Step-by-step explanation:

An airplane takes 5 hours to travel a distance of 3400 kilometers against the wind. The return trip takes 4 hours with the wind. What is the rate of the plane in still air and what is the rate of the wind?

Answers

I think it’s 25 km through the air

need help right now plz!!

Answers

Answer:

[tex]2<p<6[/tex]

Step-by-step explanation:

If it is less than [tex]6[/tex], it must have [tex]p<6[/tex].

If it is greater than [tex]2[/tex], it must have [tex]2<p[/tex].

We can combine these inequalities to get [tex]\boxed{2<p<6}[/tex].

The graph is left as an exercise to the reader.

Look at the pictuse below i would copy and paste but I can't copy a picture

Answers

Answer:

15

Step-by-step explanation:

The constant of proportionality is 15 books per shelf.

If you look at the graph, you can see that for every 1 shelf, there are 15 books. For 1 shelf, there are 15 books, and for 2 shelves, there are 30. And the pattern continues.

Let me know if you have any questions, thanks!

Given that the function graphed is ƒ(x), what is ƒ(4)? A) −2 B) −4 C) −6 D) −8

Answers

Answer: Solution for The graphs of the functions ƒ (x) = cos(x) and g(x) =x are shown to the left. Use the graph to approximate where the two functions intersect.…

Step-by-step explanation:

Answer:

Step-by-step explanation:

I dont know how to do this Please explain!!!

Answers

Using the idea that similar triangles are proportional, we can solve this problem fairly easily using a proportion. It is always best to try to draw a picture if possible, as it may increase your understanding of the problem! I have attached an image of the situation.

Proportion: The woman's distance from the laser / the woman's height = the lamp post's distance from the laser / the lamp post's height

2.1 / 1.8 = 4.5 / x

8.1 = 2.1x

x = 3.9m

Hope this helps!! :)

Three cell phone towers form a triangle,
APQR. The measure of ZQ is 10° less than the measure of ZP. The measure of ZR
is 5° greater than the measure of ZQ. Which two towers are closest together?

Answers

Answer:

answer mga dalog points

Step-by-step explanation:

mga Gago mga mini o

unsa Pana dha

mga hangol og points answer na

How many square meters are there in a floor that is 9 meters long by 12 meters wide?

Answers

Answer:108

Step-by-step explanation:

Answer:

108 square meters

Step-by-step explanation:

12*9=108

4. Jason drove 200 miles in 8 hours. How many miles did Jason drive per
hour? (answer with just a number)

Answers

Answer:

25

Step-by-step explanation:

If a new car is valued at $20,600 and 8 years later it is valued at $7000, then what is the average rate of change of its value during those 8 years?

Answers

The average rate would be 2.9 because 20,600 divided by 7000 is 2.9

Let f(x)=-x-5 and g(x)=2x+3. Find the indicated value:
f(4)

Answers

Answer:  -9

Work Shown:

f(x) = -x-5

f(4) = -4-5

f(4) = -9

Explanation: Replace every copy of x with 4. Then use PEMDAS to simplify.

Hope this helps! This is my work.

PLEASE HELP 100 POINTS AND BRAINLEST TO WHOEVER CAN HELP ME!!!!!

Precalculus: Use Function Notation and Describe Graphs Project

Description
In this project you will use words and function notation to describe the connection between the transformation of a function’s graph and the affect on the function’s equation. Then you will explain how the Point-Slope equation for a line can be explained as a transformation of the parent function
.
Requirements
You may submit a Word document, or Powerpoint file or pdf.

Name your file: Last name first name Use Function Notation and Describe Graphs Project. (My project done in Word would be name “Parker Carla Use Function Notation and Describe Graphs Project.docx”)


Projects that are not named properly will be reset for you to resubmit your project.

Blank projects or irrelevant files will result in the project being reset and the student losing access to auto-progression.
Answer the following questions using words and the appropriate equation from the Transformation Equations Bank.


What must be done to a function’s equation so that its graph is shifted vertically upward?
What must be done to a function’s equation so that its graph is shifted horizontally to the right
What must be done to a function’s equation so that its graph is stretched vertically?
Describe what the graph of looks like.
Explain how the Point-Slope equation, is a transformation of .

Answers

Answer:

esult in the project being reset and the student losing access to auto-progression.

Answer the fol

PLS HURRY!!!!!
Identify the prime factorization for 75
A 25x3
B25x 3
C 52x3

Answers

Answer:

C 52x3

Step-by-step explanation:

can anyone help ?
Fasttt

Answers

Answer:

- 3

Step-by-step explanation:

6 - 4x = 6x - 8x + 12

6 - 4x = - 2x + 12

6 - 12 = - 2x + 4x

- 6 = 2x

x = - 6 / 2

x = - 3

Answer:

+3

Step-by-step explanation:

we collect like terms to give us

-4x-6x+8x=12-6

-10x+8x=-6

-2x=-6

divide through by -2 to give us

-2x/-2=-6/-2

x=+3

note that when a negative sign divides another negative sign, it gives us a positive sign which in our case, could be ignored if chosen to

Hey here is my question. So if you have 20 legos and your sister has 10 legos how many more legos do you have than her? fr.ee points.

Answers

Answer:

You would have 10 more legos than your sister.

Step-by-step explanation:

20-10=10

interquartile range 245 297 323 369 388

Answers

The interquartile range of the data set is 107.5 :)

A taxi driver charges £5 per mile.



Write a formula to work out the total amount he gets paid (T) when you know the total number of miles he drives (m).

Answers

Answer:

T(m) = 5m

Step-by-step explanation:

The number of miles will multiply the price per mile, so the result will be the total price

82°
49°



F = ? ? ?

Answers

Answer:

49 degrees

Step-by-step explanation:

The angles of a triangle must add up to 180 degrees. So, f = 180 - 82 - 49 = 49.


Which fruit stand, A or B, offers a better deal on blueberries

Answers

Answer:

Step-by-step explanation:

Answer:BStep-by-step explanation:B cost less money bet has the same

Use graphing technology to find the range of the function
f(x) = –x^2 – 10x – 27

Answers

(♾,-37) because the lowest goes on forever but the highest the graph goes is -37.

Bakit mahalaga humingi ng tulong sa iba?​

Answers

Answer: Ang paghanap ng tulong ay binabawasan ang gastos at epekto ng sakit at pinapayagan ang maraming tao na umunlad at umunlad at mag-ambag sa isang mas positibong lipunan. Ang paghanap ng tulong ay dapat, makita, bilang isang positibong hakbang; isa na nagpapabuti sa kalusugan at kabutihan at kaligayahan.

Step-by-step explanation: Pinoy ka? Ako den

Answer:

ayon sa internet, "ang paghingi ng tulong ay binabawasan ang gastos at epekto ng karamdaman at pinapayagan ang mas maraming tao na umunlad at umunlad at mag-ambag sa isang mas positibong lipunan." Sa madaling salita, ang paghihingi ng tulong ay maaaring payagan kang mapalibutan ang iyong sarili sa mga tao na maaaring magpaganda sa amin.

(gumamit ako ng tagasalin. pasensya na kung hindi mo maintindihan!) :(

Step-by-step explanation:

Subtract polynomials:
(-4x^3+5x^2-x+3)-5(x^4-2x^3+x^2)

Answers

9514 1404 393

Answer:

  -5x^4 +6x^3 -x +3

Step-by-step explanation:

First, eliminate parentheses.

  (-4x^3+5x^2-x+3)-5(x^4-2x^3+x^2)

  = -4x^3 +5x^2 -x +3 -5x^4 +10x^3 -5x^2

Then collect terms.

  = -5x^4 +(-4+10)x^3 +(5 -5)x^2 -x +3

  = -5x^4 +6x^3 -x +3

If you are at - 15 on the number line and you wanted to move toward the positive integers, which direction along the number
line would you need to move?

Answers

Answer:

To the right

Step-by-step explanation:

The negatives on a number line are on the left side and the positives on the right.

see this as an example:

The number line that you really want to move is the right side. Then, at that point, the right choice is C.

What is a number line?

A number line alludes to a straight line in science that has numbers organized at customary stretches or divides along its width. A number line is frequently shown on a level plane and can be delayed toward any path.

On the off chance that you are at - 15 on the number line and you needed to push toward the positive numbers

The number line that you need to move in the right side. Then the correct option is C.

More about the number line link is given below.

https://brainly.com/question/13189025

#SPJ2

PLEASE HELP ITS MATH

Answers

Answer:

$192

Step-by-step explanation:

It's a proportion question!!

9/432 = 43/x

9x = 432*4

9x = 1,728

Divide 9 on both sides to isolate x.

x = 1,728/9

x = 192

So, Reid's retirement party costs $192.

(I apologize if the answer is wrong!!)

The answer is 18576 because you do 431 x 43 to get 18576

Kenhitis tines
6. Selena picked eight baskets of tomatoes. Her sister threw away one of
the baskets due to bruising. What percent were good?

Answers

Answer:

87.5%

Step-by-step explanation:

Total baskets = 8Good baskets = 8 - 1 = 7

Percent of good:

7/8*100% = 87.5%

Total number of baskets of tomatoes = 8

Her sister threw away = 1

Number of baskets that are good = 8 - 1 = 7

Percentage of good baskets =

=> 7/8 × 100%

=> 87.5%

Therefore, The percentage of good baskets is 87.5%

how to solve this derivative.

f(x)={ln(3x)}^2x
with steps...

Answers

Rewrite f(x) as a nested exponential-logarithm expression :

[tex]\left(\ln(3x)\right)^{2x} = \exp\left(\ln\left(\ln(3x)\right)^{2x}\right)[/tex]

(where [tex]\exp(x) = e^x[/tex])

One of the properties of logarithms lets us drop the exponent as a coefficient:

[tex]\exp\left(\ln\left(\ln(3x)\right)^{2x}\right) = \exp\left(2x\ln\left(\ln(3x)\right)\right)[/tex]

Now, by the chain rule, we have

[tex]f(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \implies \\\\ f'(x) = \left(\exp\left(2x\ln\left(\ln(3x)\right)\right)\right)' \\\\ f'(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \cdot \left(2x\ln\left(\ln(3x)\right)\right)'[/tex]

By the product rule,

[tex]f'(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \cdot \left(   (2x)' \ln\left(\ln(3x)\right) + 2x\left(\ln\left(\ln(3x)\right)\right)'   \right) \\\\ f'(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \cdot \left(   2\ln\left(\ln(3x)\right) + 2x\left(\ln\left(\ln(3x)\right)\right)'   \right)[/tex]

By the chain rule again,

[tex]f'(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \cdot \left(2\ln\left(\ln(3x)\right) + 2x \cdot \dfrac1{\ln(3x)} \cdot \left(\ln(3x)\right)'  \right) \\\\ f'(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \cdot \left(2\ln\left(\ln(3x)\right) + \dfrac{2x}{\ln(3x)} \cdot \dfrac1{3x} \cdot (3x)' \right) \\\\ f'(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \cdot \left(2\ln\left(\ln(3x)\right) + \dfrac{2}{3\ln(3x)} \cdot 3 \right) \\\\ f'(x) = \exp\left(2x\ln\left(\ln(3x)\right)\right) \cdot \left(2\ln\left(\ln(3x)\right) + \dfrac{2}{\ln(3x)} \right)[/tex]

Then simplify this to

[tex]f'(x) = \boxed{\left(\ln(3x)\right)^{2x} \left(2\ln\left(\ln(3x)\right) + \dfrac{2}{\ln(3x)} \right)}[/tex]

Please help i really need it, i will give brainliest to the right answers

What is the value of 2^4 + 1/4||9x + 2|| when x = –2?

Answers

Answer:

-292 1/2

Step-by-step explanation:

PEMDAS

Perenthesis

2 To the power of 4 = 16 + 1/4 = 16/1 + 1/4 X -18

An insurance agent earns a base salary of $28,000, a commission of 2% of sales, and receives an additional fee of $9 for each sale of an investment policy. The agent had total sales of $75,000 and 6 investment policies this month. Find the commission and fees earned. (There should be 2 separate answers)

Answers

Answer:

$54 for fees

$1500 for commission

$29554 in total

Step-by-step explanation:

They will have $28000 regardless.

The commission is 2% so you multiply 0.02 (which is equivalent to 2%) to $75000, so he earns $1500. He sold 6 sales so he you multiply 6 by $9 and you get $54.

I don't know exactly what your asking but

$54 for fees

$1500 for commission

$29554 in total

Please help me answer

Answers

If I were to answer this question I would pick letter A
The question is asking “Angle A is opposite from…. I would say A is the best answer.
Hope this helped :)
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