(2x^2 - 4x+1)+(5x+x^2 - 1) sum PLEASE QUICKKKKKK

Answer:

a variable is an unknown number by the way the answer is 4 too.

3+x=7

-3 -3

______

x = 4

subtract 3 on both sides to get x (the variable) by itself.

Answer:

good morning here is your answer,

3+x=7

or, x= 7-3

or, x= 4

Answer:

Y= 9/22

Step-by-step explanation:

this is what I got

Answer:

each bottle was $2.12 :P

Step-by-step explanation:

➼start by making an equation to find the price of the juice pack, in this case x would be the price of the juice pack because its unknown, the juice pack price(x) added to the price of the oranges(2.72) and equal the total(45.12), the before tax part is not needed info

2.72 + x = 45.12

➼now our aim to get x alone to find out its worth so we will have to do the opposite and subtract 2.72 from everything, since its positive

2.72-2.72=0 crosses out

45.12-2.72=42.4

➼which gets us x = 42.4 so one 20 pack is 42.40 dollars but we arent done yet, to find out the price of EACH bottle we must divide 42.4 by 20!

42.4/20=2.12

➼so to sum it up, each bottle is $2.12 :)

Answer:

$2.12

Step-by-step explanation:

1. Take the total and subtract the amount of the oranges so we can focus on the juice boxes.

45.12 - 2.72 = 42.4

2. Now that the oranges are out of the way, take the remaining amount of the total (how much the 20 boxes cost all together), 42.4, and divide by 20 to find how much each box costs.

42.4 ÷ 20 = 2.12

Hope I could help :)

Answer:

-220

Step-by-step explanation:

2,300-1 then we go into the negatives 0- -2,300

so if -5 is further from 0 than -4 that means the larger number is further

Answer:

Step-by-step explanation:

Let the salary in the previous year = $ x

Now the salary = $ (x +1000)

This year savings = $ 5720

13% * (x + 1000)= 5720

0.13 *(x + 1000) = 5720

0.13*x + 0.13*1000 = 5720

0.13x + 130 = 5720        {subtract 130 from both sides}

         0.13x = 5720 - 130

        0.13x  = 5590    {Divide both sides by 0.13}

               x = 5590/0.13

x = $ 43000

Sandra's previous year salary = $ 43000

Answer:

Step-by-step explanation:

A is certainly true. If you put 30 into your calculator, you get factions for the cube root and square root. True

B is true. 5^2 = 25 Twenty five is made up of 2 fives.

C is a perfect cube. 10 * 10  * 10 = 1000. But it is not a perfect square. False.

D 64 is a perfect cube. (It is also a perfect square).

E false 16 is a perfect square. It is not a perfect cube

True Statements

A B D

From the given recurrence, it follows that

[tex]a_{n+1} = 2a_n + 1 \\\\ a_{n+1} = 2(2a_{n-1} + 1) = 2^2a_{n-1} + 1 + 2 \\\\ a_{n+1} = 2^2(2a_{n-2}+1) + 1 + 2 = 2^3a_{n-2} + 1 + 2 + 2^2 \\\\ a_{n+1} = 2^3(2a_{n-3} + 1) + 1 + 2 + 2^2 = 2^4a_{n-3} + 1 + 2 + 2^2 + 2^3[/tex]

and so on down to the first term,

[tex]a_{n+1} = 2^na_1 + \displaystyle \sum_{k=0}^{n-1}2^k[/tex]

(Notice how the exponent on the 2 and the subscript of a in the first term add up to n + 1.)

Denote the remaining sum by S ; then

[tex]S = 1 + 2 + 2^2 + \cdots + 2^{n-1}[/tex]

Multiply both sides by 2 :

[tex]2S = 2 + 2^2 + 2^3 + \cdots + 2^n[/tex]

Subtract 2S from S to get

[tex]S - 2S = 1 - 2^n \implies S = 2^n - 1[/tex]

So, we end up with

[tex]a_{n+1} = 4\cdot2^n + S \\\\ a_{n+1} = 2^2\cdot2^n + 2^n-1 \\\\ a_{n+1} = 2^{n+2} + 2^n - 1 \\\\\implies \boxed{a_n = 2^{n+1} + 2^{n-1} - 1}[/tex]

Answer:

x=-5

Step-by-step explanation:

[tex]4x = - 18 - 2 \\ x = \frac{ - 20}{4} \\ = - 5[/tex]

BESTIEEE I HOPE U CAN GIVE ME BRAINLIEST (╥﹏╥)(╥﹏╥)

4x + 2 = -18

4x = -18 - 2

4x = -20

x = -5

Cheers!!

Answer:

1) x<55

2)x<60

Step-by-step explanation:

The bus can hold at most 55 passengers

The bulb can hold the same 60 watts or less

Answer:for number one the answer is (-2+3)^2-7

Step-by-step explanation: it means replace the x with the number it equals if you need the solution that is -6

Answer:

8,000,000,000 text messages every month.

Step-by-step explanation:

[tex]8*10^9[/tex]

[tex]10^9[/tex] means there will be 9 zeroes at the end of 1. So it will be 1,000,000,000.

So 8* 1,000,000,000 will be 8,000,000,000 text messages every month.

Answer:

9z^8

Step-by-step explanation:

2z^8 + 7z^8

Answer:

x = -5.5

Step-by-step explanation:

probaly wrong just a guess

Answer:

i think ANSWER IS 8

Step-by-step explanation:

48÷8 = 6

Answer:

8 would be your answer if I'm wrong pls let me know and I will edit soon as posable.

Step-by-step explanation:

the way I did it was doing 48 divided by 6 and I got the answer 8 meaning 8 would be the correct answer

The base area of the second aquarium is 260 in².

To solve this problem, recall the volume of a rectangular prism. Thus:

Volume of rectangular prism (V) = base area (BA) × height (h)

Base area of first aquarium = 65 in²

Height of first aquarium = 12 in

Base area of second aquarium = [tex]x[/tex]

Height of second aquarium = 3 in

Volume of first aquarium (V1) = [tex]65 \times 12 = 780 in^{3}[/tex]

Volume of the second aquarium (V2) = [tex]x \times 3 = 3x in^{3}[/tex]

To find the value of [tex]x[/tex] (base area of the second aquarium) set both volumes equal to each other.

[tex]3x = 780\\[/tex]

Divide both sides by 3

[tex]\frac{3x}{3} = \frac{780}{3} \\x = 260[/tex]

Therefore, the base area of the second aquarium is 260 in².

Learn more about volume of rectangular prism here:

https://brainly.com/question/16065525

Answer:

Step-by-step explanation:

5/6 = 14*5/14*65/6 = 5/6  

Answer:

Area =(x+3)(x+4a)

so sides = 3 and 4a

Answer:

y = 0.75x - 6

Step-by-step explanation:

parallel to y=0.75 and passes through the point (8,0)

y - y1 = m(x - x1)

y - 0 = 0.75(x - 8)

y = 0.75x - 6

Answer:

D

Step-by-step explantion:

Answer:

-23/9

Hope it helps! Leave a 5 star rating and a comment so I know it helped you all! Thanks! :D

Answer:

just for points museum Kristen

Answer:

d = 13

Step-by-step explanation:

d = √(x2 - x1)² + (y2 - y1)²

d = √[7 - (-6)]² + (1 - 1)²

d = √(13)² + (0)²

d = √169

d = 13

Answer:

-1/2

Step-by-step explanation:

3(y + 12) = 24

3y + 36 = 24

3y = 24 - 36

3y = -12

y = -12/3

y = -4

Value of 1/8 × y

1/8 × (-4)

-4/8

-1/2

Answer:

-1/2

Step-by-step explanation:

3(y + 12) = 24

~Simplify left side

3y + 36 = 24

~Subtract 36 to both sides

3y = -12

~Divide 3 to both sides

y = -4

~Now substitute in 1/8y

1/8(-4)

= -1/2

Best of Luck!

Step-by-step explanation:

2×2+2×2×2×3×3+3×3×3×4×4+4×4×4

4+8×9+27×16+64

572....

Hope this will help u...

Answer:

[tex] \frac{10}{16} [/tex]

Step-by-step explanation:

[tex] \frac{red \: pens}{total \: pens \: } = \frac{10}{16} [/tex]

or 5/8

Answer:

b: 59 feet per second

Step-by-step explanation: