What is equivalent to 2 (b+3c)

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Answer 1

Answer: 2b+6c is equivalent to 2(b+3c). Hope that helped!✋

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If 2 is added to seven times a number and equals 8 more than six times a number what is the number

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Seven times a number is 7x; 6 times a number is 6x and then solve7x+2=6x+8X+2=8X=6

Your word equation turned into an operation would be: 2+7n=8+6n. To complete this equation you have to balance it out so only n would be put on one side. So, try subracting 6n on both sides so it can be on the same side as 7n:2+7n-6n=8+6n-6n.Therefore the 6n on the right side has now switched over to the left. Then, you need to switch the 2 onto the right side by subtracting it on both sides as well:2+7n-6n-2=8-2The 2 has now been switched. After, subtract 7n-6n=1n, and 8-2=6. The equation then becomes:1n=6.To isolate n from 1, divide 1n by 1 and 6 by 1. Your equation afterwards should be: n=6/1, or as simplified: n=6.

How do I expand
r(r-r2) the 2 is meant to be r squared

Answers

$r(r-r^2) \n =r^2-r^3$

$r(r-r^2) =\n r^2-r^3$

The explicit formula for a sequence isan=−1+3(n−1)

What is the 55th term of the sequence?

Answers

Step-by-step explanation:

$\because \: a_n = - 1 + 3(n - 1) \n \n \therefore \: a_(55) = - 1 + 3(55 - 1) \n \n \therefore \: a_(55) = - 1 + 3 * 54 \n \n \therefore \: a_(55) = - 1 + 162\n \n \huge \blue { \boxed{\therefore \: a_(55) = 161}}\n \n$

Hence, the 55th term of the sequence is 161.

Lindsay paid $4.40 for 1 gallon of ice cream. At this rate, what 1 quart cost? What would 1 pint cost? Please explain.

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each pint would cost 55 cents if u divide 1.10 by two because I think that there are two pints in one quart.

Which function below is the inverse of f(x) = x2 − 9?

Answers

Let f(x)=y
y= $x^(2) -9$
Make x the subject of the formula;
y+9= $x^(2)$
x= $√(y+9)$
So, the inverse of the function is thus;
$f^(') = √(x+9)$

f (x)=y
y=2x-9

X Y
-2 -15 y=2 (-2)-9
y=-4+-9
y=-15

-1 -11 y=2 (-1)-9
y=-2+-9
y=-11

0 -9 y=2 (0)-9
y=0+-9
y=-9

1 -7 y=2 (1)-9
y=2+-9
y=-1

2 -5 y=2 (2)-9
y=4+-9
y=-5

Here is all the work

Which expression is equivalent to (7x - 5 ) - ( 3x - 2)?

Answers

$(7x - 5 ) - ( 3x - 2)$

$7x-5-3x+2$

$(7x-3x)-5+2$ $\ Gather \ like \ terms$

$4x-5+2$

$4x-3$

Distribute the minus sign into the second parenthesis to get 7x-5-3x+2.
Then combine like terms to get 4x-3

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