PLEASE HELPPPP I WILL MARK BRAINLIEST!!!

Answer: $13.95

Step-by-step explanation:

1/4 of a Dollar is 25 cents

4/5 of a Dollar is 80 cents

30 - 10.25 = 19.75

19.75 - 5.80 = 13.95

David has $13.95 to spend of Gift C

Answer:

y = [tex]\frac{1}{3}[/tex] x² - 2x - 2

Step-by-step explanation:

x-coordinate of the vertex of a parabola is ( [tex]- \frac{b}{2a}[/tex] )

y = f(x) = ax² + bx + c

(x, y) ∈ f(x)

~~~~~~~~~

{ (0, - 2), (3, - 5) } ⊂ { (x, y): y = ax² + bx + c }

a(0)² + b(0) + c = - 2 ⇒ c = - 2

a(3)² + b(3) + ( - 2) = - 5  

9a + 3b - 2 = - 5 ⇒ 3a + b = - 1

[tex]- \frac{b}{2a}[/tex] = 3 ⇒ b = - 6a

[tex]\left \{ {{3a+b=-1} \atop {b=-6a}} \right.[/tex]

3a + ( - 6a) = - 1

a = [tex]\frac{1}{3}[/tex]

b = - 2

y = [tex]\frac{1}{3}[/tex] x² - 2x - 2

The equation of the parabola for the given values is y = x²/3 - 2x - 2.

A parabola is the part of the conic section of which the points are equidistant from a fixed line called as directrix and a fixed point known as focus.

The general equation for the parabola is given as,

y = ax² + bx + c

Where c is the y-intercept.

Substitute c = -2 as per the question to obtain,

y = ax² + bx - 2

At (3,-5) the parabola has minimum value which implies y' = 0 as below,

y' = 2ax + b = 0

Substitute x = 3 to obtain,

2a × 3 + b = 0

=> -6a = b

And, y = -5 at x = 3 which gives,

-5 = 3²a + 3b - 2

=> 9a + 3b = -3

Substitute b = -6a to get,

9a - 18a = -3

=> a = 1/3

Which implies b = -6 × 1/3 = -2

Now, the equation for the parabola becomes as below,

y = x²/3 - 2x - 2

Hence, the required equation of the parabola is obtained as y = x²/3 - 2x - 2.

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Answer:

(0, infinity)

Step-by-step explanation:

Keep in mind that the input to the ln function can never be 0 or below.  The coefficient 3 has no effect on the domain.  The domain of the function shown is (0, infinity).

The domain of the function y = 3 log x is x > 0.

Option A is the correct answer.

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

y = 3 log x

The domain of the function y = 3 log x can never be less than zero.

So,

The domain is from 0 to ∞.

Thus,

The domain is (0, ∞).

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Answer:

x=3 and y=-7

Step-by-step explanation:

just cause lol

Answer:

(x, y) = (3, -7)

Step-by-step explanation:

[tex]\left \{ {{x - 3y = 24} \atop {5x + 3y = -6}} \right.[/tex]

[tex]\left \{ {{x-3y=24} \atop {3y=-6-5x}} \right.[/tex]

[tex]x-(-6-5x)=24[/tex]

[tex]x=3[/tex]

[tex]3y=-6-5(3)[/tex]

[tex]y=-7[/tex]

[tex](x,y)=(3,-7)[/tex]

CHECKING IF ANSWER IS CORRECT:

[tex]\left \{ {{3-3(-7)=24} \atop {5(3)+3(-7)=-6}} \right.\\\left \{ {{24=24} \atop {-6=-6}} \right. \\(x,y)=(3,-7)[/tex]

There is your answer with steps :)

Answer:

B.) 8x + 12

Step-by-step explanation:

Using the Distributive Property the 4 is multiplied by each number inside the parentheses

4*2x = 8x

4*3 = 12

8x+12

Answer: it’s B

Step-by-step explanation: lol I didn’t want to do the math

Answer:

33 banana muffins

Step-by-step explanation:

11/50 = x/150

50x=1650

50x/50=1650/50

x=33 !

Answer:

1st statement is true

2nd is false (amplitude is (max - min) ÷ 2 so (5.8 - 4.6) ÷ 2 = 0.6)

3rd is true

4th is false (frequency is the reciprocal of period, they can't be the same)

Answer:

try answer C 33ft

Step-by-step explanation:

Answer:7

Step-by-step explanation:

Answer:

92 pounds

Step-by-step explanation:

Here is the complete question ;

4 people are going to a dinner party. Each person at the party will eat 23 pound of cake. If you can only buy whole pounds of cake, how many pounds should you buy?

total pounds to be bought = number of people at the party x total pounds they would eat

4 x 23 = 92 pounds

Answer:

30 degrees

Step-by-step explanation:

yes

Answer:

its 3, bae

Step-by-step explanation:

trust me on this one

Answer:

Question 3: There are 12 boys in the class.

Question 4: 120 cookies were not oatmeal raisin.

Question 5: Target offers the best deal.

Step-by-step explanation:

If the ratio of girls to boys is 3:2, and there are 18 girls, that means there will be [tex]\frac{18}{3}[/tex] * 2 = 6 * 2 = 12 boys.

Because there are 200 cookies total, and [tex]\frac{2}{5}[/tex] of them are oatmeal raisin, that means that [tex]\frac{3}{5}[/tex] of the cookies aren't oatmeal raisin. 200 * [tex]\frac{3}{5}[/tex] = 40 * 3 = 120 cookies that aren't oatmeal raisin.

The cookies at Kroger have a unit rate of $0.45 per cookie, the cookies at Meijer have a unit rate of $0.50 per cookie, the cookies at Walmart have a unit rate of $0.38 per cookie, and the cookies at Target have a unit rate of $0.20 per cookie. So Target has the better buy.

Answer:

2130 but see the note below

Step-by-step explanation:

Remark

It does not matter whether the home team or the visiting team got the support. All that matters is the total number of tickets. Just eye balling it looks like about 1500 dollars.

Equation

Total Donation = 5 * (121 students + 158 + 47)

Solution

Total Donation = 5(426)

Total Donation = 2130

Note:

There is a problem with with. 121 students cannot be included in the 158 or in the 47. If they are, there is no way to be sure what the answer is. I have solved it as though there were 3 separate categories. If that isn't so, you will get it  wrong.

Answer:

18 days

Step-by-step explanation:

Given, Amount of cat food eaten by each cat per day = 1/4 th of a tin

          Amount of cat food eaten by 2 cats per day = 1/4 × 2 part of a tin = 1/2 of a tin No. of days 9 tins will last = 9 × 2 = 18

Answer:

40 mph

Step-by-step explanation:

160÷4 = 40 miles per hour

Answer:

40miles per hour

Step-by-step explanation:

distance traveled/time spent=speed(velocity)

160/4=speed (velocity)

40mph

Answer:

$18.55

Step-by-step explanation:

I added the meal and drink then used a calculator and addded that total plus 7% of it then I added 20% of that to get 18.55

12.95+1.50 = x

x + 7% = y

y+ 20%

Answer:

-9/2

Step-by-step explanation:

Answer:

x = -4.5

Step-by-step explanation:

90 = -20x

-90 = 20x

-90/20 = x

x = -4.5

Leave a like and mark brainliest if this helped

Answer:

b

Step-by-step explanation:

Answer:

D.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

I took the test on EDGE 2022

Answer: Always negative

Answer:17

Step-by-step explanation: Multiply Steve’s hourly wage ($7.40) by the hours he worked in a week (16 Hours) that would give you your weekly earnings which would be (7.40x16=$118.40) Then subtract what he saved in the bank from your total (118.40-105=$13.40) then you would divide $13.40 (his leftover money) by $0.75 to find the total number of carnival rides he could ride (13.40/0.75=17.86 rides and because he cannot ride 17 and 86 hundredths of a ride he would be able to ride 17 carnival rides.

Answer: 1/9 pizza portions

Step-by-step explanation:

The pizza was left with only 1/3 of it and 3 people shared this.

The fractional part of the whole pizza that each of the three people ate is therefore:

= Percentage of who pizza left / Number of people

= 1/3 ÷ 3

= 1/3 * 1/3

= 1/9 pizza portions

Answer: blue,  to love me, to nice, to i love you, to be a good boy and suck.

Step-by-step explanation:

hi I am girl

9514 1404 393

Answer:

  No

Step-by-step explanation:

The graph is not a straight line with define slope, so does not represent a linear function.

__

The graph has segments that are straight lines. It is what we call "piecewise linear."

Answer:6m + 2t= 100

t=3m

Step-by-step explanation:

Answer:

The missing measure of the arc is 125°.

Step-by-step explanation:

Since the circle is 360°, you would first subtract 360 by the degrees given: 360-115-35-85 and the sum is 125. Then, you would set 125 equal to -32x-3 to solve for x.

[tex]125=-32x-3[/tex]

[tex]+3[/tex]               [tex]+3[/tex]

-----------------------

[tex]\frac{128}{-32} =\frac{-32x}{-32}[/tex]

[tex]x=-4[/tex]

The missing measure of the arc is 125°.