Mathematics High School

Which expression is equivalent to (10 +7r−r2)+(−6r2−18+5r)

Answers

Answer 1
Answer: -7r^2+12r-8
Explanation;
1. Combine -r^2 and -6r^2 to get -7r^2
2. Subtract 18 from 10 to get -8
3. Combine 7r and 5r to get 12r
Answer 2

The expression is equivalent to [tex]-7r^{2} + 12 r -8[/tex].

Here,

The expression is,

[tex](10 + 7r -r^{2} ) + (-6r^{2} -18+5r)[/tex]

We have to simplify this expression.

What is Quadratic equation?

Quadratics can be defined as a polynomial equation of a second degree.

Now,

The expression is,

[tex](10 + 7r -r^{2} ) + (-6r^{2} -18+5r)[/tex]

By simplify, we get;

[tex](10 + 7r -r^{2} ) + (-6r^{2} -18+5r)[/tex]

[tex]10 + 7r -r^{2} -6r^{2} -18+5r[/tex]

[tex]10 -18 + 7r +5r -r^{2} -6r^{2}[/tex]

[tex]-7r^{2} + 12 r -8[/tex]

Hence, The expression is equivalent to [tex]-7r^{2} + 12 r -8[/tex].

Learn more about the quadratic equation visit:

https://brainly.com/question/27179040

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Related Questions

Find m∠CBD.

i’ll give a brainist

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Answer:

<M<CBD=M<CDB=34° BASE ANGLE OF ISOSCELES TRIANGLE

can someone help me to solve this
t^2-t+1 when t=5

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Answer:

21

Step-by-step explanation:

your bill was $93.50 and the tax was 6.25%
how much was the tax
How much was the total bill?

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Answer:

$99.34

Step-by-step explanation:

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Answer:

Nice pfp- Also, Elena would know because they have identical slopes and y intercepts, The Equation would give you 36x + 18 = 36 x +18, Basically they are corresponding lines.

hope that helped. :p

simplify the exspresion below

3(7.1y + 4x)

Answers

Answer:

21.3y + 12x

Step-by-step explanation:

hans has completed 27 deliveries so far this week. He needs to make 60 deliveries for the week. What percentage of his deliveries has hans completed?​

Answers

Answer:

45%

Step-by-step explanation:

You need to divide 27 by 60, to get .45. to get an accurate percentage, multiply .45 by 100 to get 45%. hope this helps

Find the value of x 3x+6 41 6x-5 4x+7 62 7x-11

Answers

Answer:

13

Step-by-step explanation:

Simplifying

3x + 6 + 7x + -11 + 41 + 62 + 6x + -5 + 4x + 7 = 360

Reorder the terms:

6 + -11 + 41 + 62 + -5 + 7 + 3x + 7x + 6x + 4x = 360

Combine like terms: 6 + -11 = -5

-5 + 41 + 62 + -5 + 7 + 3x + 7x + 6x + 4x = 360

Combine like terms: -5 + 41 = 36

36 + 62 + -5 + 7 + 3x + 7x + 6x + 4x = 360

Combine like terms: 36 + 62 = 98

98 + -5 + 7 + 3x + 7x + 6x + 4x = 360

Combine like terms: 98 + -5 = 93

93 + 7 + 3x + 7x + 6x + 4x = 360

Combine like terms: 93 + 7 = 100

100 + 3x + 7x + 6x + 4x = 360

Combine like terms: 3x + 7x = 10x

100 + 10x + 6x + 4x = 360

Combine like terms: 10x + 6x = 16x

100 + 16x + 4x = 360

Combine like terms: 16x + 4x = 20x

100 + 20x = 360

Solving

100 + 20x = 360

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-100' to each side of the equation.

100 + -100 + 20x = 360 + -100

Combine like terms: 100 + -100 = 0

0 + 20x = 360 + -100

20x = 360 + -100

Combine like terms: 360 + -100 = 260

20x = 260

Divide each side by '20'.

x = 13

Simplifying

x = 13

Max wants to jog around his neighborhood. If one lap around the neighborhood is 1.2 kilometers and he jogs 8 laps, what is the total distance that he would jog?

Answers

Answer:

9.6 kilometers.

Step-by-step explanation:

SInce we know 1 lap is 1.2 kilometers, and he jogged 8 laps, we can multiply 1.2 by 8 to get a distance of 9.6 kilometers jogged.

Answer:

9.6 kilo

Step-by-step explanation:

A retailer spends $25 on a new video game. They have to pay 7.5% sales tax on
this game. How much is the tax? *

Answers

Answer:

The tax is $1.88

Step-by-step explanation:

7.5% = 0.075 (divide by 100)

0.075 * $25 = 1.875 or $1.88

If △ABC ~ △DEF, solve for FE.

Answers

Answer:

FED

Step-by-step explanation:

Please help me with this homework

Answers

1) 1,000 cm^3
2)2560 cm^3

x=5 and 2 x+y=10 what is x and y?

Answers

since you are given x then x=5
now you plug in x into the equation which is
2(5)+y=10
which equals to 10+y=10
minus 10 on both sides to get y by itself
y=10-10
y=0
Y=0 y+2(5)=10 y+10=10 minus 10 away on both sides

Find the perimeter of the triangle.

Answers

Answer:

(0,3)

Step-by-step explanation:

PLEASE HELP ASAP (grade 8 question)

Answers

Answer:

Probably 80* (* means degrees for me) i might be wrong

Step-by-step explanation:

So if m<1 = 50* and m<2 = 65, then there might be a pattern.

50 + 15 = 65. So if 65 + 15 = 80, then 80* MIGHT be the answer.

Can someone explain to me step-by-step

Answers

You can use any two clear points from the graph to get the slope, like (0,4) and (-2,0)

then you can use this rule to find the slope :
(y2-y1)/(x2-x1)
=(0-4)/(-2-0)
= -4/-2
=2

so the slope is 2

hope this helps !

Anyone know the awnser to this it’s 28 points!and you have to give me the awnser to all of them

Answers

Answer:

The y-intercept is -6 and the x-intercept is 5

Step-by-step explanation:

I posted a picture on how I got this

Hope this Helped

Answer:

Find attached file also

Step-by-step explanation:

6x - 5y = 30

y intercept,Put x = 0

6*0 - 5y = 30

-5y = 30

y = 30 /-5

y = -6

x intercept,Put y =0

6x - 5*0 =30

6x = 30

x = 30/6

x =5

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What's the diffrence between an exponential funtion and linear function??

Answers

A linear fuction is always the same. The constant does change. It is a constant line. A exponential fuction is not

plz help I will give brainliest​​

Answers

The answer to this question is x<6

What is another way of writing the following expression?
3(7 + 4)
A (3 × 7) + (3 × 4)
B (3 + 7) × (3 + 4)
C 3 × 7 × 4
D 7(3 + 4)

Answers

A. (3x7)+(3x4)
should be the correct one bc the other options dont get the same answer in the end

Answer:

A

Step-by-step explanation:

3 times 7 = 21 3 times 4 = 12

21+12=33

Remember the addition sign must be included for the equation to be valid.

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Answers

Answer:

The answer is 2.45

Step-by-step explanation:

I used this magic device called a calculator!

lol

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regular price of a ping pong table is $255 the discount is 40% off regular price what is the price now?​

Answers

Answer:

153

Step-by-step explanation:

$255 multiplied by 40% gives the product. You then subtract 102 from 255, giving you the final answer.

simplify 14
_
8 please answer

Answers

Answer:

7/4

Step-by-step explanation:

Answer:

7/4

Step-by-step explanation:

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3(y+2)=30 one solution​

Answers

The answer to this problem is 6

Find the product. (x - 4)²​

Answers

Answer:

x^2−8x+16

Step-by-step explanation:

Answer:

x^2 - 8x + 16

Step-by-step explanation:

(x-4) (x-4)

your multiplying the first parentheses by the second

x^2 -4x -4x +16

-4x -4x = -8x

x^2 -8x + 16

Tyler orders a meal that was $15
If the tax rate is 6.6%, how much will the sales tax be on Tyler’s meal?

Answers

Answer:

His total will be $15.99, so the sales tax is $0.99

Step-by-step explanation:

15 increase 6.6% =

15 × (1 + 6.6%) = 15 × (1 + 0.066) = 15.99

Please help me pleasee

Answers

Answer:

a

Step-by-step explanation:

Answer:

it would be the 2nd option

{(2,1) (1, 0) (0,1)}

Step-by-step explanation:

5-2(4a + 1) + 3a= 13 What is A?

Answers

answer ; -1/2

when expanded
5-8a-2+3a=13
5a=3-13
a=-5/10
a= -1/2

(2x-30)+(x+15).

Solve it and your get brainlest.

Answers

Answer:

45

Step-by-step explanation:

Answer:

X=45

Step-by-step explanation:

(2x-30 )= (x+15)

2X=X+45

X=45

Solve for the unknown:
-2(3 + 7h) + 2 = 108

Answers

H = -8 Hope this helped :)

Answer:

h = -8

Step-by-step explanation:

-2(3 + 7h) + 2 = 108

-2 * 3 + -2 * 7h + 2 = 108

combine like terms

-6 - 14h + 2 = 108

-4 - 14h = 108

add 4 to both sides of the equation

-4 + 4 - 14h = 108 + 4

-14h = 108 + 4

-14h = 112

divide both sides of the equation by -14

-14h/-14 = 112/-14

h = 112/-14

h = -8

Who play's Little big snake "https://littlebigsnake.com/"

Answers

Answer:

I have never heard of it sorry

Answer:

i have

Step-by-step explanation:

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