is this equation linear or not? y = 2x²​

find the value of x so that f(x)=7

The answer is:

x = 5

The value of x such that f(x) = 7 is 5.

A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.

Given a graph of a function f(x).

The graph is a straight line where there is a unique value of y for each value of x.

We have to calculate the value of x when y = 7.

Taking the y coordinate to 7, the x coordinate corresponding to the y coordinate is 5.

Hence the value of x is 5.

To learn more about Functions, click on the link :

https://brainly.com/question/12431044

#SPJ2

Answer:

助けはないが私をマークする

Step-by-step explanation:

Answer:

(0,0) is the origin therefore $0 per hour

(1,125) means that in 1 hour the company rents rafts for $125 per hour

Answer:

Its the second one

Step-by-step explanation:

Answer:

2. 134, 205, 330, 275, 365

Step-by-step explanation:

All number ending in 0 or 5 can be divisible by 5, besides 0, obviously. So, looking at the options, we can rule out 1, 3 and 4, leaving 2.

Hope this helps :)

Answer:

I believe (not confident) You take 180-28 and divide that by 2. (76 degrees)

We know that the top angle of the triangle is 28 degrees because vertical angles are congruent.

Step-by-step explanation:

Answer:

i think ?? CORRECT ME IF IM WRONG -check my user

Step-by-step explanation:

do an opposite angle to get the top of the left triangle so it will be 28

180-28=152

152÷2=76 (because its an isosceles)

Answer:

The expression shows the number of dollars he will have saved by the end of the year is given by 35(7)+40(5)=\$44535(7)+40(5)=$445

Step-by-step explanation:

Since we have given that

Amount he saved per month over the first 7 months = $35

Amount he saved per month over the next 5 months = $40

So, total saving by the end of the year is given by

\begin{gathered}35\times 7+40\times 5\\\\=\$245+\$200\\\\=\$445\end{gathered}

35×7+40×5

=$245+$200

=$445

Hence, the expression shows the number of dollars he will have saved by the end of the year is given by

35(7)+40(5)=\$44535(7)+40(5)=$445

Answer:

6x

Step-by-step explanation:

Perimeter of rectangle is [tex]2x^{2} +8x+16[/tex].

The perimeter of a two-dimensional shape is the total length of the outline. To find the perimeter of a rectangle, we add the lengths of all four sides.

Given

Length of a rectangle in terms of x = [tex]x^{2} +2x+5[/tex]

Width of a rectangle in terms of x = [tex]2x+3[/tex]

Perimeter of rectangle = 2(length + width)

P = [tex]2(x^{2} +2x+5 + 2x+3)[/tex]

P = [tex]2(x^{2} +4x+8)[/tex]

P = [tex]2(x^{2} )+2(4x)+2(8)[/tex]

P = [tex]2x^{2} +8x+16[/tex]

Hence, Perimeter of rectangle is [tex]2x^{2} +8x+16[/tex].

Find out more information about perimeter of rectangle here

https://brainly.com/question/15287805

#SPJ3

Answer:

Large pizzas= 12 Medium= 8

Step-by-step explanation:

if you 12 by 5 and 8 by 6 and add them together you get 108

Answer:

t>-3 is the answer. hope this helped!

Step-by-step explanation:

Its simple you add 4 to both sides. t-4+4 > -7+4= t > -3

Answer:

C

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

7−(−3)

=7−(−3)

=7+3

=10

Answer:

10

Step-by-step explanation: calculator

Answer:

$280 + $15x ≥ $635

Step-by-step explanation

weekly pay (280) + commision per sale (15x)  ≥ goal (635)

Answer:

Answer:7

Step-by-step explanation:

Answer:

lines a and b would be parallel, and the reason is <3 and <6 are alternate interior angles

Step-by-step explanation:

1/8 2/8 3/8 4/8 5/8 6/8 7/8 8/8

1/2 1 1/2 1 1/2 1. 1/2 1

4Minutes

Answer:

D. 1/3

Step-by-step explanation:

When you add 1/3 and 6 you get 6 1/3 so yeah

Answer:

y >13

Step-by-step explanation:

y - 2 > 11

solve like how you would solve an equation, with inverse operations

y -2 > 11

  +2   +2

y > 13

Answer:

it shoud just be y>13

Step-by-step explanation:

bc you add 2 to each side which cancels the -2 on the left and makes the 11 on the right 13

Answer:

x > 9/5

Step-by-step explanation:

Step 1: Write inequality

2/3x - 1/5 > 1

Step 2: Solve for x

Here we see that any x value greater than 9/5 will work.

Answer:

4.7 years

Step-by-step explanation:

Distance of planet from Earth = 1.3 parsec

We know that 1 parsec = 3.26 light years

And a light year is the distance traveled by light in time period of 1 year.

So, Distance of planet from Earth = 1.3 [tex]\times[/tex] 3.26 = 4.24 light years

Given that, the person travels at a speed equal to 90% of the light speed.

To travel to the planet from Earth, Light takes 4.24 years.

To travel the distance [tex]D[/tex], at a speed [tex]s[/tex] light takes time of 4.24 years.

To travel the distance [tex]D[/tex], at a speed [tex]0.90s[/tex], the person takes time:

[tex]\dfrac{4.24}{0.90} = \bold{4.7\ years}[/tex]

So, the twin on Earth ages by 4.7 years.

Answer:

4.7 years

Step-by-step explanation:

Answer:

GCF

I hope this helps!

Answer:

GCF

Step-by-step explanation:

Answer:

V=157

Step-by-step explanation:

Formula-

V=π[tex]r^{2}[/tex][tex]\frac{h}{3}[/tex]

1.) Place height and radius in the formula.

V=π[tex]5^{2}[/tex][tex]\frac{6}{3}[/tex]

2.) Now all you have to do is simplify.

V=3.14 x 25 x 2

3.) Now solve.

V=157.07963

Answer:

I say 157 cubic centimeters

Step-by-step explanation:

Answer: Commutative Property

The Commutative Property states that any multiplication or addition equation flipped around will have the same value. For example:

   [tex]3 + 8 = 8 + 3[/tex]

Hope this helps you!

Answer:

It will take 4 hours for the temperatures to be the same. The temperature will be 3° at that time.

Step-by-step explanation:

Coldspot = -7 + 2.5x

Frostberg = 19 - 4x

First, we are going to input our values into the variable in a table.

          Coldspot                            Frostberg

1     -7 + 2.5(1) = -4.5                    19 - 4(1) = 15

2     -7 + 2.5(2) = -2                     19 - 4(2) = 11

3     -7 + 2.5(3) = 0.5                   19 - 4(3) = 7

4     -7 + 2.5(4) = 3                      19 - 4(4) = 3

It will take 4 hours for the temperatures to be the same. The temperature will be 3° at that time.

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Answer:

4 hours

Step-by-step explanation:

Answer:

6 or -1

Step-by-step explanation:

6=a^2-5a

=a^2-5a-6

(a-6)(a+1)

a=6, -1

Answer:

$ 49.64

Step-by-step explanation:

Selling price of cookie on Wednesday = 13 × 2.38 = $30.94

Selling price for brownie on Wednesday = 4 × 3.07 = $ 12.28

Selling price for cakes on Wednesday = 4 × 14.87 = $ 59.48

Cost price for cookie = 13 × 1.7 = $ 22.1

Cost price for brownie = 4 × 1.91 = $ 7.64

Cost price for cakes = 4 × 5.83 =$ 23.32

Total profit for Wednesday= Total selling price - total cost price

That is;

(30.94 + 12.28 + 59.48) - (22.1 + 7.64 +23.32) = $ 49.64