Mathematics High School

Please help!

Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses whenever possible.

a. -4 and 4b + 4
b. 3x and 1 -3x

Answers

Answer 1

Answer:

Does this problem have a picture, I just need to make sure I am seeing everything correctly thanks!

Step-by-step explanation:

a. -4 and 4b + 4 = 4b

-4 and 4b + 4 = -4 + (4b + 4) = 4b + (4 - 4) = 4b + 0 = 4b

b. 3x and 1 - 3x = 1

3x and 1 - 3x = 3x + (1 - 3x) = 1 + (3x - 3x) = 1 + 0 = 1

Related Questions

The numbers –12, –7, –2, 3, . . . follow a pattern. What are the next three numbers in this pattern? A. 8, 13, 18 B. 5, 10, 15 C. 2, 8, 13 D. 8, 14, 17

Answers

Answer:

A.

Step-by-step explanation:

5 is added each time

3 + 5 = 8

8 + 5 = 13

13 + 5 = 18

Answer:

8,13,18

Step-by-step explanation:

One number is 7 more than twice another tumber. The sum of the numbers is 22. What is
one of the numbers?

Answers

Answer:

5

Step-by-step explanation:

for the question, let's make a variable

Assume one number is X and we can get a equation like this:

X + 2X+7 = 22

X + 2X = 22 - 7

3X = 15

X = 5

I really need help for this question, I would appreciate any help thank you.

Answers

Answer:

Step-by-step explanation: so a straight line always equals to 180 where 41 is its a straight line so we know the total should be 180 degrees so to find x you need to subtract 180 minus 41 which equals 139 which is your answer im not super sure but trust your gut im trusting mines with this one so i hope this helps

Is the relation is a function, explain. {(8, 5), (7, 4), (6, 4), (5, 5)}

Answers

Answer:

Yes, it is a function.

Step-by-step explanation:

As long as there are no more than one x-values for each coordinate, then it is considered a function.

help me please! ill give brainliest

Answers

Answer:

Step-by-step explanation:

Here is how you are supposed to plot the number line

38=p−15

PLEASE HELP MEHHHHH

Answers

Answer:

p=23

Step-by-step explanation:

Answer:

P=23

Step-by-step explanation:

38-15=23

p=23

Hope this helps

Have a great day!

I need help with the question please! I'm having a hard time answering it!

Answers

Answer:

small packet: 1.56/22=£0.071

medium: 2.87/38=£0.076

large: 4.67/65=£0.072

small packet is best as it has the lowest price per nail

Sara rolls a fair dice 90 times. How many times would sara be expected to roll a five?​

Answers

Answer:

15 times

Step-by-step explanation:

there are 6 numbers on a die so divide 90 by 6 and you get 15

Answer:

It will be 15 times

Step-by-step explanation:

Hope this helped have an amazing day/month/year!

Can somebody help me with this?

Answers

the answer is C, 40, angle c for triangle abc is 50 bc the total of it and 130 must equal 180. so if you subtract the angle you are given, 90, and the new angle, 50, from 180 (total a triangle should have) then your answer is 40.

Quantity of Notebooks Cost
5/$6.00
6/$5.82
7/$6.44
8/$6.80
9/$8.01
The table shows the cost for different quantities of notebooks offered online. Which is the BEST VALUE?
A) 5 notebooks
B) 6 notebooks
C) 7 notebooks
D) 8 notebooks

Answers

i think it’s A, each notebook would be .83 cents

Answer: I think it might be A but then again I am only in 6th grade so, whatever!

Step-by-step explanation:

round to the tenth number 8.2548

Answers

Answer:

8.3

Step-by-step explanation:

8.25 has to round up because of the five making it 8.3

8.2548 is because 5 and more let it score 4 or less make it rest

An airplane is flying at a height of 3 kilometers on a path that will take it directly over the airport. At a certain instant its slant distance from the airport is 18 kilometers. How far must the plane travel to be directly above the airport?

A 333km

B 315km

C 15km

D 21km​

Answers

Answer:

its b......................

The airplane must travel [tex]\sqrt{315}[/tex] km to be directly above the airport.

What is Pythagoras Theorem?

Pythagoras theorem states that for a right angled triangle, the square of the hypotenuse is the sum of the squares of base and altitude.

We have to apply the Pythagoras theorem to solve the problem.

By Pythagoras theorem,

Base² + Altitude² = Hypotenuse²

Given,

Altitude = 3 km

Hypotenuse is the slant distance from the airport = 18 km

Let x be the distance plane must travel to be directly above the airport.

x² + 3² = 18²

x² = 315

x = [tex]\sqrt{315}[/tex]

Hence the distance plane must travel is [tex]\sqrt{315}[/tex] km.

To learn mote about Pythagoras Theorem, click :

https://brainly.com/question/21926466

#SPJ2

Pls can someone help me

Answers

Answer:

x = (h-12y-2)/4

Step-by-step explanation:

Here, we want to make x the subject of the formula

We have this as:

h = 4x + 12y + 2

4x = h-12y-2

x = (h-12y-2)/4

Help me find the value of "y" thanks

Answers

You would move you positive 3 to the left side so (y) is by itself. So you would have 3x-8=y. Then substitute X=5. So 3(5)-8=y. 15-8=y. 7=y

Answer:

[tex]y=3x-8[/tex]

Step-by-step explanation:

First, you have to isolate y on one side of the equation.

Step 1) Add 5 to both sides (this will cancel out the (-5) on the left)

Step 2) Subtract 3x from both sides (this will cancel out the (3x) on the left)

Step 3) Subtract y from both sides

Step 4) In order to make the desired variable positive, change the sign of everything in the equation

The step shown above will yield the answer of [tex]y=3x-8[/tex]

Solve m+4>9
Please help

Answers

Answer:

m>5

Step-by-step explanation:

Let's solve your inequality step-by-step.

m+4>9

Step 1: Subtract 4 from both sides.

m+4−4>9−4

m>5

Answer:

m > 5

Step-by-step explanation:

m + 4 > 9

m + 4 - 4 > 9 - 4

m > 5

is y=3x^2 a function?

Answers

Answer:

y=3x-2 is a function because it passes the vertical line test

Answer:

No

Step-by-step explanation:

Cant have any variables

Luann wrote an expression showing 8 times the difference of y and 3. Select all expressions that are equivalent to the value of Luann’s expression.


8y−3
8y−11
8y−24
8y+24
8(y−3)

Answers

Answer:

8y-24 and 8(y-3)

Step-by-step explanation:

Solve the system of equations: *

4x +2y = 24
x + y = 6

One solution: (0,6)
One solution: (6,0)
No solution
Infinite Solutions

Answers

Answer:

One solution: (6,0)

Step-by-step explanation:

4(6)+2(0)=24

6+0=6

What is the x-coordinate of the point that divides the directed line segment from J to K into a ratio of 2:5? m 4 m ][xz – xı) + x, -4 -2 2 4 ​

Answers

Answer:

2

Step-by-step explanation:

im sure its 2 i hope this helps

A paper company produces 4,050 notebooks in 5 days. How many notebooks can it produce in 13 days?

Answers

Answer:

10530

Step-by-step explanation:

4050 notebooks in 5 days

                                 1 day=810

13 days=10530

please mark as brainliest!!!

What is the solution to the system of equations graphed below?
y--x+2
y= 5x+ 28
OA. (4, 8)
OB. (0, 2)

Answers

Answer:

4,8 :)

Step-by-step explanation:

Answer:

(-4, 8)

Step-by-step explanation:

other answer was close but wrong

Evaluate b/a−1.2 when a=4 and b=12

Answers

Answer:

3-1.2=1.8

Step-by-step explanation:

12/4=3-1.2=1.8

6
Evaluate without using a calculator. Use the Pythagorean identities rather than reference triangles. Find tan and cot 0 if sec 0 = 5
and sin <0.
tanecote =
(Simplify your answers, including any radicals. Use integers or fractions for any numbers in the expressions.)

Answers

Answer:

b

Step-by-step explanation:

MATHHHHHHHHHHHHHHHHHHHHHHHHHH

Answers

Answer:

x intercept = 3

y intercept = 2

Step-by-step explanation:

x intercept is 3

y intercept is 2

find the measurement indicated in each parallelogram

Answers

Answer:

UW = EW+UE=2×EW because, EW=UE

7x-2=2×6= 12

7x=14

x=14/7

x=2

2 is the right answer.

Lola made $104.54 working 11 hours this week. Next week she is working 15 hours. How much will she make?

Answers

Answer:

$142.50

Step-by-step explanation:

If you divide how much she made by 11 you find out she makes $9.50 and hour and then you mutiply $9.50 by the 15 hours she works.

Product of square of x and cube of y

Answers

Where’s the image? I don’t see it

Left hand or right hand?

Answers

Answer:

right

Step-by-step explanation:

.

Solve the equation:
−8n−8=−72

Select one:

n=−20

n=−2

n=8

n=17

Answers

Answer: n=8

Step-by-step explanation:

N=8, I showed the work your welcome

Find the exact length of the third side.
7.
3

Answers

Answer:

10

Step-by-step explanation:

Answer: it’s 2

Step-by-step explanation: so u subtract

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