MATHEMATICS MIDDLE SCHOOL

Simplify the following 2(×+8k)+2k=

Answers

Answer 1

Answer:

Answer:

2x + 18k = X= -9k

Step-by-step explanation:

you have to solve the rational equation by combining expressions and isolating the variable x.

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8+—3(6+—6a) help please

Answers

We know that:

$(+)+(-)=(-)$

and:

$(-)*(+)=(-)$

$8+(-3)[6+(-6a)]=8+(-3)*6+(-3)*(-6a)=8-18+18a$ $=(-10)+18a$

if you have solve for $a$ then:

$(-10)+18a=0$
$18a=10$
$a= (10)/(18)$
$a=(5)/(9)$

What is the slope of the line (-11,-16),(-3,10)

Answers

take the y-coordinate of the second set and minus the y-coordinate of the first set. Then do the same to the X's. Then divide Y's by the X's.

The answer is: 13/4

Slope: (y2-y1)/(x2-x1)

x1=-11
x2=-3

y1=-16
y2=10

Let's subtract the "y"s first.

Remember, a double negative (2 negatives in a row... subtracting a negative) equals a positive.

10--16= 10+16=26

Now, let's subtract the "x"s.

-3--11

-3+11=8

Now we have to divide.

26/8=13/4

I believe the slope is 13/4 :).

Hope I helped!

Add the two expressions. 8k + 4 and 3k + 8

Answers

I believe the answer is 11k+12 it might be wrong..

ya i dont know but this is what i think aswell 11k+12

Last weekend 1270 students participated in the music festival. Write 1270 in expanded form using exponents

Answers

The exponent form of students participating in the music festival is

1×10³ + 2×10² + 7×10¹.

What is the standard decimal form of numbers?

The standard decimal form of numbers is written in base 10 as there are 10 different numbers from 0 to 9.

Each digit has a face value and a place value.

Given, Last weekend 1270 students participated in the music festival.

Now, 1270 in exponent form is as follows,

1270 = 1000 + 200 + 70.

1270 = 1×1000 + 2×100 + 7×`0.

1270 = 1×10³ + 2×10² + 7×10¹.

learn more about standardand exponent form of numbers here :

brainly.com/question/29000730

#SPJ2

1270= 1 x $10^3$ + 2 x $10^2$ + 7 x $10^1$

Hope this helps.

What is the vertex form of 2x=y^2-10

Answers

Answer:

x = 0.5y^2 - 5.

Step-by-step explanation:

2x=y^2-10

Divide both sides by 2:

x = 0.5y^2 - 5

Answer:

Step-by-step explanation:

x = 0.5y^2 - 5

the vertex is : (-5 , 0)

look this graph

Dave sells popcorn at the ballpark. He is paid a flat rate of $40 each day, but also earns $0.45 for each box of popcorn he sells. Dave earns a total of $112 at Wednesday nights game. How many boxes of popcorn does he sell?