Solve the system using elimination.
X + 7y = 25
2x - 7y = -13

Answer: f(-2) = 225

Step-by-step explanation:

Plug in x which is -2 because f(x) = f(-2):

f(-2) = 9 • 1/5^-2

f(-2) = 9 • 25

f(-2) = 225

Hope this helps!

Answer:225

Step-by-step explanation:

BIG BRaIN

Answer:

$6000

increases by 10% but you then take away 5% fron the 10 as it decreases by 5. meaning you have incresed by 5% and adding the 15% equals 20%. so the account increases by 20%. 20% of 5000 equals 1000. add the two together and you get 6000. so the account total now is $6000

Answer:

2 hours

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The negative slope of -1/3x will go down 1 and right 3 as it decreases. The +2 is where the y axis is intersected.

Answer:

Step-by-step explanation:

A quadratic equation must contain

an [tex]x^{2}[/tex] term

and must not contain terms with degrees higher than [tex]x^{2}[/tex].

A non/not quadratic equation doesn't have an [tex]x^{2}[/tex] term. It also features a term such as [tex]x^{3}[/tex] which isn't allowed in quadratic equations

Answer:

A quadratic equation contains a quadratic term (x²), as per the name. The quadratic term must be any variable squared. A non-quadratic equation is an equation that does not contain a quadratic term such as x².

The format for a quadratic equation should look like so: ax² + bx + c = 0, in which a, b, and c are all real numbers and a cannot be equivalent to 0. An example of a quadratic could be: 5x² + (-3x) + 5 = 0.

An example of a non-quadratic equation could be: x³ - 81 = 0.

Hope this helps!

Answer:

16:24

Step-by-step explanation:

Write this [tex]\frac{2}{3}[/tex] [tex]\frac{16}{x}[/tex]  (Cross multiply)

16*3 = 2*x

48 = 2x (divide by 2)

24 = x

Hope this helped!!!

Answer:

454 grams I believe..................

Answer:

-1.2 or -1 1/5

Step-by-step explanation:

The complete cost of purchasing an asset is known as the original cost.The whole costs associated with purchasing and using an asset are taken into account when calculating its initial cost.

        Original cost  = $ 34.15 - $ 0.45/ 100

              = 0.33%

To learn more about original cost refer

https://brainly.com/question/26008313

#SPJ2

Answer:

Part A: The time it will take for both of them to painted equal number of feet is 4.875 minutes

The number of feet Benito will have painted when the two sides have equal length is 73.125 feet

Part B: It is not true that Tyler will finish painting his side of the fence before Benito finishes painting his

Part C: Time to rest is 1.864 minutes

Step-by-step explanation:

The given information are;

The length of fence Tyler already painted when Benito started = 19 ¹/₂ feet

Benito paints 15 feet/minute

Tyler paints 11 feet/minute

Length of fence = 150 feet

Part A:

The time it will take for both of them to painted equal number of feet is given as follows;

11×t + 19.5 = 15×t

4×t = 19.5

t = 19.5/4= 4.875 minutes

The time it will take for both of them to painted equal number of feet = 4.875 minutes

The length Benito will have painted when the two sides have equal length = 15 × 4.875 = 73.125 feet

Part B: The time it will take Tyler to finish painting his side of the fence is given as follows;

11 × t + 19.5 = 150

t = (150 - 19.5)/11 ≈ 11.864 minutes

While the time it will take Benito to finish painting his side of the fence is given as follows;

15 × t  = 150

t = 150/15 ≈ 10 minutes

Therefore it is not true that Tyler will finish painting his side of the fence before Benito finishes painting his

Part C: Given that Benito finishes before Tyler, the length of time Benito gets to rest is given as follows;

Time to rest = Time Tyler takes to finish - Time Benito takes to finish

Time to rest = 11.864 - 10 = 1.864 minutes.

Answer:

The degree of f(x) is even and the leading coefficient is positive. There are 3 real zeros and 2 relative minimum values.

Step-by-step explanation:

We have the graph of f(x).

In general, remember these points:

For even-degree functions:

And for odd-degree functions:

P.S. Yes, it's a lot. But grasping these concepts will help you greatly in future mathematics!

Anyways, let's go back to our problem. Our graph has the same end behavior, so it must be an even function.

Moreover, both end behavior are approaching positive infinity, so the leading coefficient must be positive.

The real zeros of a function are whenever the graph touches or crosses the x-axis. We see that it happens only three times (this is circled in blue below in the image).

The relative minimum values are whenever the graph reaches its lowest point between an increasing and decreasing (or decreasing and increasing) curve. This happens twice (this is circled in black below in the image).

Note: The black arrows denote whether the graph is increasing or decreasing (down means decreasing, up means increasing).

So, you can see that our minimums will always be between a decreasing and then an increasing curve.

So, our solution is:

The degree of f(x) is even and the leading coefficient is positive. There are 3 real zeros and 2 relative minimum values.

And we're done!

Answer:

you have more outfits than your friend

Step-by-step explanation:

you:

5*13=65outfits

friend:

4*9=36outfits

Answer:

0.1754

Step-by-step explanation:

Use a calculator

Answer:

5.70 hope that helped :)

Answer:

All real numbers

Step-by-step explanation:

Use distributive property

5 - 2(x - 2) = -2(x + 1) + 11

5 - 2x + 4 = -2x - 2 + 11

Add like terms

9 - 2x = -2x + 9

9 = 9

All real numbers

Answer:

B

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer: 3=b

Step-by-step explanation:

First get the like terms 3 and (-3) on one side.

You do this by either adding or subracting, it depends on the sign of the number. -3 is negative 3 but you have to add it to make it zero and on the other side you add it and get 6.

Then you divide 6 by 2. 2b by 2 to get the variable alone and 3=b is your answer.

Answer:

C. Nonvertical parallel lines will have the same slope but different​ y-intercepts.

Step-by-step explanation:

Parallel lines never intersect, so they must have the same slope. The reason why option A is incorrect is because if they had the same y-intercept, they would be considered the same line directly on top of each other, and parallel lines never touch. :)

Nonvertical parallel lines will have the same slope but different​ y-intercepts. Then the correct option is C.

When the distance between the lines is constant then the lines are called parallel lines. The lines do not intersect when they are separated from each other. And the slope of the lines is equal.

Let the equation of the line be ax + by + c = 0. Then the equation of the parallel line that is parallel to the line ax + by + c = 0 is given as ax + by + d = 0.

The slope of the parallel line will be congruent. And the product of the slopes of the perpendicular lines will be negative 1.

Nonvertical parallel lines will have the same slope but different​ y-intercepts. Then the correct option is C.

More about the equation of a parallel line link is given below.

https://brainly.com/question/402319

#SPJ2

Answer:

169 is the answer.

Step-by-step explanation:

I used a calculator.

Answer:

EH = 9

FH = 7

EG = 6

EF = EH - FH

EF = 9 -7

EF = 2

FG = EG -EF

FG = 6 -2

FG = 4

Step-by-step explanation:

Answer: 3.46

Step-by-step explanation:

Answer:

Cody rounds $164.50 to and $37.25 to $160 and $40, respectively.

Step-by-step explanation:

Given

[tex]Bat = \$164.50[/tex]

[tex]Glove = \$37.25[/tex]

Required

Approximate to nearest $10

To answer this, we simply approximated both to the nearest tens.

For Bat, we have:

[tex]Bat = \$164.50[/tex]

[tex]Bat = \$160[/tex] approximated

For Glove, we have:

[tex]Glove = \$37.25[/tex]

[tex]Glove = \$40[/tex] approximated

Answer:

[tex]r=2v+s[/tex]

Step-by-step explanation:

[tex]v=\frac{r-s}{2}\\\\2(v)=2(\frac{r-s}{2})\\\\2v=r-s\\\\r-s=2v\\\\r-s+s=2v+s\\\\r=2v+s\\\\\dagger[/tex]

Answer:

Your answer is:  r= 2v+s

Solve for  r  by simplifying both sides of the equation, then isolating the variable.

Step-by-step explanation:

Hope this helped : )

Answer:

1 hour: 4 dollars

Step-by-step explanation:

If Billy is being paid $100 for 25 hours of work, that means for every 5 hours of work, he is making $20. This means that for every hour of work, Billy is making $4. So the rate is 1 hour: 4 dollars

I hope this helps :)

Answer:

102-105

Step-by-step explanation:

Median formula for a group data is expressed as shown;

Median = (N+1)/2 th value/interval

N is the total number of students

From the question N = 36

Median = (36+1)/2

Median = 37/2

Median = 18.5

Therefore we are to cumulate the value of the frequency up till the 18.5th value.

From the table

If we keep cummulating the frequency from the top;

Let's add:

1+3+5+5+8 = 21

Since the 18.5th values falls within the cumulative frequency value (i.e 21), the corresponding interval where we stopped cumulating will be our Median.

From the table, the interval with the frequency of 8 is 102 - 105. Hence the median is located at the interval 102 - 105

Answer:

102-105

Step-by-step explanation:

edge

Answer:

answers?

Step-by-step explanation:

[tex]f(x) = \cos^2(3x^3)\\f'(x) = \frac{d}{dx}[\cos^2(3x^3)]\\= 2\cos(3x^3) \cdot \frac{d}{dx}[cos(3x^3)]\\= 2\cos(3x^3) \cdot (-\sin(3x^3)) \cdot \frac{d}{dx}[3x^3]\\= 2\cos(3x^3) \cdot (-\sin(3x^3)) \cdot 9x^2\\= -18x^2\cos(3x^3)\sin(3x^3)[/tex]

Answer:

Step-by-step explanation:

let the cost of plan A be Y1

and the cost of plan B be Y2

let the number of minutes for both plans be x

let us model the cost of plan A

Y1= 13+0.37x-------1

let us model the cost of plan B

Y2= 28+0.15x------2

when Y1=Y2, we can now solve for x which is in minutes

13+0.37x=28+0.15x

collect like terms

13-28=0.15x-0.37x

-15=-0.22x

divide both sides by -0.22

x=-15/-0.22

x=68.18min