Which finction results in f(2)=13?

Answer:

He would pay $287 if he races 39 times

Thus, the membership fee is $14.

Step-by-step explanation:

Linear Modeling

The situation described in the problem can be modeled as the equation of a line which has the form:

[tex]y=ax+b[/tex]

Where y is the cost of the course, x is the number of races, a is the cost per race, and b is the membership fee.

We know the course charges $7 per race, so a=7. Since your friend has raced x=28 times and paid y=210, we can find the value of b:

[tex]210=7(28)+b[/tex]

Operating:

[tex]210=196+b[/tex]

b=14

Thus, the membership fee is $14.

The linear model is now:

[tex]y=7x+14[/tex]

If he races x=39 times, your friend would pay:

[tex]y=7(39)+14=287[/tex]

y=287

He would pay $287 if he races 39 times

Answer:

y = 2x - 4

General Formulas and Concepts:

Alg I

Slope-Intercept Form: y = mx + b

Parallel Lines have the same slope but different y-intercepts.

Step-by-step explanation:

Step 1: Define

y = 2x + 1

Step 2: Break function

Slope m = 2

y-intercept = 1

Step 3: Set up parallel line

y = 2x + b

8 = 2(6) + b

8 = 12 + b

b = -4

y = 2x - 4

Answer:

y = 2x - 4

Step-by-step explanation:

y - y1 = m(x - x1)

y - 8 = 2(x - 6)

y - 8 = 2x - 12

 + 12       + 12

y + 4 = 2x

  - 4     - 4

y = 2x - 4  ------- formula for slope-intercept form: y = mx + b

Hope that helps!!! Please give me brainliest!!!

Answer: the best coupon for this case is WELCOME25, and the cost will be $30.

Step-by-step explanation:

We know that:

Price for pans = $22

Price for pots = $9.

If the customer buys two pots and one pan, he would pay::

C = 1*$22 + 2*$9 = $40.

If the customer uses the coupon 2POTSFOR1

Then he will pay only one of the pots, and the total cost will be:

C = 1*$22 + 1*9 = $31.

If the customer uses the WELCOME25 coupon, then the cost will be a 75% of the original cost.

if 100% = $40

then:

 75% = C

Where

We can take the quotient of these equations and get:

 (C/$40) = (75%/100%)

C = (75%/100%)*$40

C = 0.75*$40 = $30

Then the best coupon for this case is WELCOME25, and the cost will be $30.

Answer:

.33

Step-by-step explanation:

If you add the times the dice was rolled and landed on a number greater than four, you would get 108. Then, you would divide that by 330 and you get .327. Round that up and you get .33

Answer:

33? ig

Step-by-step explanation:

Answer:

Because the weather was generally better this year compared to last year, the attendance may have increased.

Step-by-step explanation:

took test

Answer:

C.) The explanatory variable is the type of coupon. The response variable is number of number of coupons redeemed.

Step-by-step explanation:

edge 2020

The inequality is represented by the given graph is y ≤ -x/3+1.

The correct option is B.

An inequality is a relation that compares two numbers or other mathematical expressions in an unequal way. The majority of the time, size comparisons between two numbers on the number line are made.

We have,

A graph of an inequality, passing by (0, 1) and (3, 0).

A and D are eliminated since the line is solid.

C is disregarded because the line is shaded below as well.

Then, the inequality will be y ≤ -x/3+1

Hence, the inequality is represented by the given graph is y ≤ -x/3+1.

Learn more about inequality here:

brainly.com/question/30231190

#SPJ7

Answer: 88 cones.

Step-by-step explanation:

We know that:

price of a cone = $1.10

price of a sundae = $2.35

A total of 172 cones and sundaes were sold for $294.20

Then we can define two variables:

C = number of cones sold

S = number of sundaes sold.

C + S = 172 (the total number of sundaes and cones sold is 172)

C*$1.10 + S*$2.35 = $294.20  (that is how much the won).

Then we have the system of equations:

C + S = 172

C*$1.10 + S*$2.35 = $294.20

And we want to find how many cones were sold.

To solve this, we first need to isolate the other variable, S, in one of the equations, i will isolate S in the first equation:

S = 172 - C

Now, let's replace this in the second equation:

C*$1.10 + (172 - C)*$2.35 = $294.20

Now we can solve this for C, and find the number of cones that were sold.

C*$1.10 + $404.20 - C*$2.35 = $294.20

C*($1.10 - $2.35) = $294.20 - $404.20

-C*1.25 = -110

C = 110/1.25 = 88

88 cones were sold.

5>0-3

Step By Step- 5 is greater than 0-3 because 0-3 would equal a negative number, and all positive numbers are greater than negative numbers

Answer:

5>0-3

Step-by-step explanation:

Answer:

sorry if i knew i would of told you bc i need help with that 2

Step-by-step explanation:

where the same person HE He!!

Answer:

If you take a look at, 1.5 kilometers you can see that Mercury from the Sun is 5.8, it is also asking how many more kilometers is the distance of earth, so if you look at 5.1 and D which is 5.7 you would add those last digits together and get 5.8 so therefore your answer could possibly be D) 5.7 ⋅ 109 kilometers

Step-by-step explanation:

correct me if i´m wrong

Answer: 9.2*10^7 which is B

Step-by-step explanation:

Answer: 7z²-9z+20

Step-by-step explanation:

PEMDAS - Please Excuse My Dear Aunt Sally - Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

This is an inequality.

This is what the statement should look like: [tex]57 > x - 8[/tex]

Now, you can actually "properly" reverse these meaning the equality sign changes too. So basically you can mirror them.

The "mirrored" inequality expression would look like this: [tex]x - 8 < 57[/tex]

Now just like normal algebra, you can transpose these terms from 1 side to another and so, -8 would transpose to the right hand side and the operation would be the inverse or in this case, addition. The expression would look something like this: [tex]x < 57 + 8[/tex]

Add them up and you get: [tex]x < 65[/tex] :D

Step-by-step explanation:

a) is true

b) is true

c) is false

d) is false

e) is true

Answer:

G

Step-by-step explanation:

y=-3x/2

because gradient =-3/2

and u must use formula (y-y1) = m(x-x1)

Answer:

Step-by-step explanation:

You have the correct answer. The sides are cut in half. 16 and x are in the same ratio 2:1

16 / 8 = 2:1

Answer:

1968

Step-by-step explanation:

give me brainliest plsssss tysm

Answer:

1,968

Step-by-step explanation:

plz brainiest

Answer:

x=4

Step-by-step explanation:

Answer:

7 binders for $16.80 is a better deal.

Step-by-step explanation:

Answer:

103

Step-by-step explanation:

f(n) = 4n + 3

f(25) = 4(25) + 3 = 103  

Answer:

B. 3x + y = 4

Step-by-step explanation:

y = -3x + 4

Check:

3x + y = 4

-3x        -3x

y = -3x + 4

Answer:

It is B

Step-by-step explanation:

This is because if you use the point (1,1) for example then both x and y are 1.

1 X 3 = 3 and 3 + 1 = 4.

Answer:

okay but i dont see anything

Step-by-step explanation:

Answer:

It is d = 0.6t haha I do I-Ready too! <3

Answer:

Step-by-step explanation:

4). Domain: ( - ∞ , ∞ )

Range: [ - 4 , ∞ )

5). Domain: ( - ∞ , ∞ )

Range: ( - ∞ , ∞ )

Answer:VOA

Step-by-step explanation:

3 and 5 )vertically opposite angles

7) same as 4

Answer:

[tex] \rm - \dfrac{11}{2} [/tex]

Step-by-step explanation:

[tex] \rm Simplify \: the \: following: \\ \rm \longrightarrow - 5 + \dfrac{i}{2} i \\ \\ \rm Combine \: powers. \\ \rm \dfrac{i \times i}{2} = \dfrac{i^{1 + 1}}{2}: \\ \rm \longrightarrow - 5 + \dfrac{i^{1 + 1}}{2} \\ \\ \rm 1 + 1 = 2: \\ \rm \longrightarrow - 5 + \dfrac{i^2}{2} \\ \\ \rm i^2 = -1: \\ \rm \longrightarrow - 5 + \dfrac{( - 1)}{2} \\ \\ \rm \longrightarrow - 5 - \dfrac{1}{2} \\ \\ \rm Put \: - 5 - \dfrac{1}{2} \: over \: the \: common \: denominator \: 2. \\ \rm - 5 - \dfrac{1}{2} = \dfrac{2( - 5)}{2} - \dfrac{1}{2} : \\ \rm \longrightarrow \dfrac{ - 5 \times 2}{2} - \dfrac{1}{2} \\ \\ \rm 2 (-5) = -10: \\ \rm \longrightarrow \dfrac{ - 10}{2} - \dfrac{1}{2} \\ \\ \rm \dfrac{ - 10}{2} - \dfrac{1}{2} = \dfrac{ - 10 - 1}{2} : \\ \rm \longrightarrow \dfrac{ - 10 - 1}{2} \\ \\ \rm -10 - 1 = -11: \\ \rm \longrightarrow - \dfrac{11}{2} [/tex]

Answer:

0.035

Step-by-step explanation:

its just math........    

0.028

+

0.007

line it up like addition then add!

PLEASE MARK AS BRAINLIEST!

Answer:

0.035

Step-by-step explanation:

0.028 + 0.007 -> 7 + 8 = 15. Carry the 1 over to where the next digit is (2)

= 0.035

Answer:

A=556

Step-by-step explanation:

Hope this Helps :)

Answer:

the value of a is 556

Step-by-step explanation:

I would explain but im too lazy, sowwy

Answer:

Step-by-step explanation:

Let the smaller number = x

Let the larger number = x + 1

(4,5)

(5,6)

(6,7)

(7,8)

(8,9)

(9,10)

(10,11)

(11,12)

Answer:

6 and 4

Step-by-step explanation:

they equal the same angle as 1

Answer:

Step-by-step explanation:

∠2, ∠4, ∠7