I need this for tonight!! Please help, 50 points for first answer
Jennnyyy avatar

Answers

Answer 1
Answer: 17).                                            3x + 1 < 10

Subtract 1 from each side:      3x        <  9

Divide each side by 3 :              x        <  3


18).                               (x) (y) - 3

x = -2
y = -4                          (-2) (-4) - 3

                               =     ( 8 )    - 3

                               =            5
Answer 2
Answer: 17.) x<3
so we started out with our equation below
3x + 1 < 10 in order to find x we have to get it alone..................so lets subtract the 1           - 1 <  - 1      from both sides
awesome it cancels out on the left hand side. and the right side of the equation is now 9. lets rewrite what our equation looks like now.
3x < 9    from here its simple we divide 3 by both sides to get x alone
/3     /3      the 3s on the left side are canceled out now. lets solve the rest:)
x < 3
your answer is x is less than 3 :)

18.)now for this equation we just need to plug in our value for x and y 
yx - 3 is our equation so what would we do if we knew what x and y were?
they give us the numbers x = -2 and y = -4 
so lets plug them in with parentheses:)
(-4)(-2) - 3
first lets multiply the -4 and -2 together 
-4 x -2 = 8!!
so in their place lets put 8
8 - 3 looks simple now. right? 
8 - 3 = 5
your answer to 18 is 5!!
hope this helps you out:)


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Answers

Answer:

650

Step-by-step explanation:

1st row has 1 ball

2nd row has 4 balls

3rd row has 9 balls

4th row has 16 balls

We can see that the number of balls is the square of the row number. There are a total of 12 rows. So, rest of the rows has:

5th row has 25 balls

6th row has 36 balls

7th row has 49 balls

8th row has 64 balls

9th row has 81 balls

10th row has 100 balls

11th row has 121 balls

12th row has 144 balls

If we add up all those, we get total number of balls

please mark me brainliest!

PLEASE ANSWER ASAP!The function f(x) is graphed on the coordinate plane.

What is f(−1) ?



Enter your answer in the box.

f(−1)
=

Answers

Answer:

f(-1) = 3

Step-by-step explanation:

See the graph shown in the attached file with the given question.

The graph passes through (0.5,0) point on the X-axis and (0,1) point on the Y-axis.

So, the length of the X-intercept is 0.5 and that of Y-intercept is 1.

Hence, the equation of the straight line graph is  

(x)/(0.5) +(y)/(1) =1{Using the intercept form}

⇒ 2x + y = 1 ....... (1)  

Now, y = f(x) = 1 - 2x

Hence, f(-1) = 1 - 2 ( - 1 ) = 3 (Answer)

12 times the square root of 2 equals ?

Answers

√(2)≈1.41
12 x 1.41=16.92
Well, the square root of 2 is about 1.4
So, 
√(2) ≈ 1.4

 12 * 1.4 = 16.8

Susan joined a video rental club. She paid an initiation fee of $12.75, and it costy $0.75 per video that she rented.Part A:-write an equasion to show the total amount susan paid to rent v videos.
Part B:-while she was a member of the club , susan paid a total of $105.75. how many videos did she rent?

Answers

so initiation fee is 12.75

0.75 per video so
total cost = iniation fee+0.75 times number of videos or
total cost=12.75+0.75 times v
0.75 times v=0.75v so

total cost=12.75+0.75v

if total cost=105.75 then subsitute
105.75=12.75+0.75v
subtract 12.75 from both sides
93=0.75v
multiply both sides by 100 to clear decimal
9300=75v
divide both sides by 75
124=v

she rented 124 videos

A:total=12.75+0.75v
B:124 videos

Answer: I know this isnt and answer but can you plleassse do Part C

Question: Suppose Sierra had rented the same number of videos with the same initiation fee, but the coast was instead $0.95 per video she rented. What would she have paid in total?

Step-by-step explanation:

Can the sum of two mixed numbers be equal to 2

Answers

I don't think so, unless you'll allow one of them to be a negative mixed number.

A mixed number is the sum of a whole number and a fraction.

(Whole number-A + Fraction-A) + (Whole number-B + Fraction-B) =

(Whole number-A + Whole number-B) = (Fraction-A + Fraction-B)

Right away you see that this can't be equal to 2, because we have the sum of
two whole numbers ... which must be at least 2 ... and then some more.

But if you'll accept one negative mixed number then it's easy:

( 6 1/2 ) + ( - 4 1/2 )  =  2

What is (2n+2)(6n+1)

Answers

FOIL (distriute)
tells how to multiply which ones
First terms
Inner terms
Outer terms
Last terms

(2n+2)(6n+1)
First (2n times 6n=12n^2)
Inner (2 times 6n=12n)
Outer (2n times 1=2n)
Last (2 times 1=2)

add them
12n^2+12n+2n+2
12n^2+14n+2
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