Plz help me so I don’t fail

Answer:

Step-by-step explanation:

Number of months is x, and number of pairs of shoes after each month is y.

7 new pairs of shoes every 2 months means that after each month:

y = 7/2 x

We need to add the 15 pairs from start.

y = 3.5x + 15

Answer:

The mama bear can do it in 9

seconds. The cub can do it in 18

seconds.

Step-by-step explanation:

1/x+9+1/x=1/6

Using the together rate, it is found that it would take each bear 9 hours to open the car door alone.

The together rate is the sum of each separate rate.

In this problem, the rates are as follows:

Given

A tourist ignores the warning signs and leaves food in his car while he goes for a hike.

A mama bear and her cub open the car door in six seconds.

Together with rate: 1/6.

Mama's rate: 1/x.

Cub's rate: 1/(x + 9).

Therefore,

[tex]\rm \dfrac{1}{x}+\dfrac{1}{x+9}=\dfrac{1}{6}\\\\\dfrac{x+9+x}{x(x+9)}=\dfrac{1}{6}\\\\\dfrac{2x+9}{x(x+9)}=\dfrac{1}{6}\\\\ 6(2x+9)=x(x+9)\\\\12x+54=x^2+9x\\\\x^2+9x-12x-54=0\\\\x^2-3x-54=0\\\\ x^2+6x-9x-54=0\\\\ x(x+6)-9(x+6)\\\\(x-9)(x+6)=0\\\\x-9=0 \ x=9\\\\x+6=0 \ x=-6[/tex]

The value of time can not be negative.

Hence, It would take each bear 9 hours to open the car door alone.

To learn more about the together rate, you can take a look at brainly.com/question/25159431

Answer:

1) f(x) = 0.5*(x + 3)*(x - 4)

2) f(x) = -2*x^2 - 2*x + 12

Step-by-step explanation:

Wen we have a quadratic function like:

f(x) = a*x^2 + b*x + c*x

And it has roots at x1 and x2, we can write the function in the factored form as:

f(x) = a*(x - x1)*(x - x2)

then:

1) we have x-intercepts at: (-3, 0) and (4, 0) (then the roots of this function are x = -3 and x =4) and we know that f(1) = -6

we have:

x1 = -3

x2 = 4

then we can write f(x) as:

f(x) = a*(x - (-3))*(x - 4)

f(x) = a*(x + 3)*(x - 4)

Where a is a real number.

and now we can use the fact that f(1) = -6

then:

f(1) = a*(1 + 3)*(1 - 4) = -6

       a*4*(-3) = -6

       a*-12 =  -6

       a = -6/-12 = 1/2 = 0.5

Then the function is:

f(x) = 0.5*(x + 3)*(x - 4)

2) Now we have roots x = 2 and x = .3

Then:

x1 = 2

x2 = -3

Then this function is something like:

f(x) = a*(x - 2)*(x - (-3))

f(x) = a*(x - 2)*(x + 3)

Now we know that f(0) = 12.

then:

f(0) = a*(0 - 2)*(0 + 3) = 12

         a*(-2)*3 = 12

          a*(-6) = 12

          a = 12/-6 = -2

f(x) = -2*(x - 2)*(x + 3)

And we do not want this one written in factored form, so we can just distribute the multiplications to et:

f(x) =  -2*(x - 2)*(x + 3) = (-2*x + 4)*(x + 3) = -2*x^2 + 4*x - 6*x + 12

f(x) = -2*x^2 - 2*x + 12

Answer:

1/2 or 0.5 is the correct answer of this question

Answer:

56

Step-by-step explanation:

7(10-2)

7*8

=56

Answer:

56

Step-by-step explanation:

7(p(10-q(2))  

70-14=56

Answer= 56

Answer:

160 is 80% of 210.

Step-by-step explanation:

cause im smart

Answer:

a=8, b=8.14

Step-by-step explanation:

2^3 is the same as 2•2•2 which is 8.

If you cube root of 540 it is 8.14325 but I left it off with the second decimal which you could add or take off whichever you need.

Answer:

8y+2x+2w

Step-by-step explanation:

Answer:

I have literally no idea. Very sorry!

Answer:

√308 or 17.5

Step-by-step explanation:

c^2=a^2+b^2

c^2-a^2=b^2

Substitute

18^2-4^2=b^2

324-16=b^2

b^2=308

b=√308 or b=17.5

Answer:

Step-by-step explanation:

Add 9 to both sides

2x = -22

Divide both sides by 2

x = -11

Answer: Tablets because they increase in sales by 467%

Step-by-step explanation:

The item with the greatest increase is the one that has the highest percentage increase in the 3 years.

Each box represents 20 units sold.

Desktop Computers:

= (2017 sales - 2015 sales) / 2015 sales * 100%

= (160 - 100) / 100 * 100%

= 60%

Laptops:

= (280 - 160) / 160 * 100%

= 75%

Tablets:

= (340 - 60) / 60 * 100%

= 467%

Answer: Jesse

Step-by-step explanation:

Elizabeth - 50f/10s

Jesse - 55f/10s

Reagan - 53.3333333/10s

Jesse is the fastest

Answer:

I think that Jessie swam the fastest

Step-by-step explanation:

Jessie swam the fastest bc Reagan only swims 160 feet in half a minute and 110 is less than 160 and 20 + 20 =40 so if Jessies swimming speed and time was multiplied by 2, she would still swim faster!

(sorry Im not the best at math but I hope you can understand my logic lol)

Answer:

b

Step-by-step explanation:

for every x, there must be exactly one y for it to be a function. so, if there is more than one x per y, it's not a function.

in b, -2 (x) has two different y's which are 5 and 7, making it not a function.

Answer:

2(x^7+x^5y^2+x^3y^4+y^3x^4+y^5x^2+y^7) under (x^2+xy+y^2)(x^2-xy+y^2)(x^4+x^2y^2+y^4)

Step-by-step explanation:

Answer:

1/4 is 25% .25 1/25 is 4% 0.04 1/6 is .167 16.67% 1/3 is 0.33 or 33%

Step-by-step explanation:

Answer:

Hey I just wanted to tell you that Jesus LOVES YOU SO MUCH He died on the cross for all your sins so you won’t have to suffer the consequences of your sin He paid for ALL OF IT! He loves you SO FREAKING MUCH like unconditionally... all you have to do is confess with your mouth and believe in your heart that Jesus is Lord and God raised Him from the dead 3 days later you will be saved ;)))))))) He wants an intimate relationship with you all you have to do is reach out to Him I love you AND ABOVE ALL JESUS LOVES YOU

Have a blessed day;))

Step-by-step explanation:

Answer:

Step-by-step explanation:

3/(100-1)

3/99

1/33

Answer:

3.-42

Step-by-step explanation:

3.

x+2=0,x=-2

f(-2)=(-2)³-3(-2)²+4(-2)-14=-8-12-8-14=-42

4.

x³-x²-22x+40

put x=2

2³-2²-22(2)+40

=8-4-44+40

=48-48

=0

x=2

so x-2 is one factor.

by synthetic division.

2 |  1  -1  -22   40

  |       2    2  -40

 _____________

     1   1   -20  | 0

x²+x-20=0

x²+5x-4x-20

=x(x+5)-4(x+5)

=(x+5)(x-4)

x³-x²-22x+40=(x+5)(x-2)(x-4)

Answer:

x = 2, x = 1                                              

Answer:

let the opposite angle of 44 be x

and let opposite angle of z be y

44+52 + x=180( by sum of all angle is 180°)

96+x=180

x= 180-96

x=84

y+x=180 ( linear pair angle)

y+84=180

y=180-84

y=96

now the y, z,40 are triangle.

y+z+40=180( by sum of all angle)

96+z+40=180

z+136=180

z=180-136

z=44

Answer:

Step-by-step explanation:

Plug the first equation into the second

[tex]4x+3(-2x-5)=15\\4x-6x-15=15\\-2x=30\\x=-15[/tex]

y=-2(-15)-5

=30-5

=25

Answer:

He will earn $123.25

Step-by-step explanation:

You multiply $7.26 by 17.

Answer:

is this premite, volume or area

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

In 120 seconds, the speed of a bus travelling on a smooth road increases from 8 m/s to 32 m/s. This technique uses the bus's potential energy.

Velocity is the rate of travel in a specific direction and adds direction to speed. Divide the distance travelled by the time it took to travel that distance, then add direction to determine the velocity. Velocity is zero if one's position doesn't change.

By dividing the amount of time it took the object to go a certain distance by the overall distance, one can calculate the object's initial velocity. V is the velocity, d is the distance, and t is the time in the equation V = d/t.

Velocity can be defined as the rate at which something moves in a specific direction as the speed of a car driving north on a highway or the pace at which a rocket takes off.

To learn more about velocity refer to:

https://brainly.com/question/25749514

#SPJ2

Answer:

52n + 130

Step-by-step explanation:

Distribute

26 (2n + 5)

52n + 130

Solution

52n + 130

Answer:

I hope so option c is answer

Answer:

Step-by-step explanation:

(X-6)(x-6)

Follow the steps in FOIL (first, outside, inside, last)

First= X x X= X^2

Outside= X x -6 = -6X

Inside= -6 x X = -6X

Last= -6 x -6 = 36

Ans = X^2 -6X - 6X + 36

Simplify: X^2-12X+ 36

Answer is C

Answer:

sin B= 33.06

Step-by-step explanation:

Hope this Helped!

Answer:

use formula

Step-by-step explanation:

equate them and then u will see ur answer