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mario62 [17]
3 years ago
15

Helpp i am really bad with math

Mathematics
2 answers:
koban [17]3 years ago
8 0

Answer:

4y-12

Step-by-step explanation:

Multiply the outside number by the numbers in the bracket.

Example:4×y=4y Because y=1

4×3=12

2.Answer C

3(5x+1)

3×5x=15x

3×1=1

Which is equivalent to 3(5x+3)

Hope this helps.

Brut [27]3 years ago
7 0

Answer:

1. 4y-12

2. c

For #1 you distribute the 4 to the y and the 3. 4 times 3 equals 12.

For #2 you factor out the 3 and you get 3(5x+1)

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Please help me with this question!!!!!! PLEASE.
DerKrebs [107]

Answer:

B. -9, 7

Step-by-step explanation:

For the rational expression to be undefined the denominator has to equal 0.

x² + 2x - 63 = 0

Factor left side.

(x - 7)(x + 9) = 0

Set factors equal to 0.

x - 7 = 0

x = 7

x + 9 = 0

x = -9

x = -9 or x = 7

8 0
3 years ago
Read 2 more answers
A company specializes in custom home resales in an exclusive subdivision. A random sample of nine custom homes currently listed
Mashcka [7]

Answer:

Step-by-step explanation:

Given data of x and y are tabulated and slope and intercept found out

X Y

 

26 540

27 555

33 575

29 577

29 606

34 661

30 738

40 804

22 496

 

SLOPE 15.89351852

Intercept 140.0833333

a) Regression equation is

y =15.89x+140.08

b) Enclosed

c) POsitive linear relation

d) When x increses by 1 unit y increases by 15.89 units

e) predictor is x and response is y

f) No outliers.Potential are

26 540

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33 575

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g) whenever we have x value we substitute in regression equation and find y

g)

7 0
3 years ago
Mr. Toney gets his car washed every 15 days. Mr. Brown gets his car washed every 20 days. Today, they are both getting their car
Zinaida [17]
They both get their cars washed on every 60th day.


You can solve this equation by finding the lcm (least common multiple):

15 30 45 60 75 90 105

20 40 60 80 100

The lowest common multiple is 60 as it is the first multiple the two have in common.

So, in sixty days, they’ll both get their car washed again

6 0
1 year ago
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More points also what is 2x3+4x6x8+9
-Dominant- [34]

Answer:

the answer is 207

Step-by-step explanation:

using bodmas

7 0
2 years ago
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Simplify the expression <br><br> 6(-5n + 7)
Hunter-Best [27]

6(-5n+7)=0


We simplify the equation to the form, which is simple to understand

6(-5n+7)=0


Reorder the terms in parentheses

+(-30n+42)=0


Remove unnecessary parentheses

-30n+42=0


We move all terms containing n to the left and all other terms to the right.

-30n=0-42


We simplify left and right side of the equation.

-30n=-42


We divide both sides of the equation by -30 to get n.

n=1.4

Hope this helps!

7 0
3 years ago
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