The y-coordinate of the vertex of the function y = 2x^2-8x+c is 2. The value of c is

Answer:

r=0

Step-by-step explanation:

28=4r+28

Subtract 28 from both sides, you get

4r=0

so, 0/4 is 0, and r=0

Answer:

r is 7

Step-by-step explanation:

because if you do the math you will see r is 7

I got $720 because i did x + 30y = 1770, and then 2x + 50y = 3190, 5x + 150y = 8850, 6x + 150y = 9570 and lastly x = 720.

The required cost of one charter bus would be 720 dollars.

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

Let's assume that cost to charter one bus would be x and the spend on the student would be y

According to the given situation, we can write the equations as

x + 30y = 1,770   ....(i)

2x + 50y = 3,190 or

x + 25y = 1,595 .....(ii)

Subtracting equation (ii) from equation (i), and solving for y

x + 30y - (x + 25y) = 1,770 - 1,595

5y = 175

y = 35

Substitute the value of y= 35 in the equation (i), and solve for x

x + 30(35) = 1,770

x + 1,050 = 1,770

x = 1,770 - 1,050

x = 720

Therefore, the cost of one charter bus would be 720 dollars.

Learn more about the equation here:

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Answer:

3 < x < 6

Step-by-step explanation:

8 < 3x - 1 < 17

Add 1 to all sides

8+1 < 3x - 1+1 < 17+1

9 < 3x  < 18

Divide all sides by 3

9/3 < 3x/3  < 18/3

3 < x < 6

Answer:

x=(3,6)

Step-by-step explanation:

3x-1>8 and 3x-1<17

3x>9           3x<18

x=3               x=6

Answer:

28x^2

Step-by-step explanation:

5+5+9+9 = 28

Answer:

x = 15, x = 10

Step-by-step explanation:

Answer:

Commutative property of addition

The commutative property is when parts of an equation can be moved around, but give the same answer.

Step-by-step explanation:

Answer:

Commutative property of addition

The commutative property is when parts of an equation can be moved around, but give the same answer.

Step-by-step explanation:

Answer:

$22.50

Step-by-step explanation:

50/100 = x/45

cross multiply

50 × 45 = 100 × x

2250 = 100x

divide both sides by 100

22.5 = x

*note: marksup the price means that $45 should be more than what the value of x is. $45 is more than $22.50. you can also check your work by looking at the fact $22.50 is exactly half (50%) the amount of $45*

Answer:

i think c but not positive

Step-by-step explanation:

Solution:  x∈Ф

No solution

Step-by-step explanation:

[tex]\sqrt{x} +5+2=\sqrt{x} -7[/tex]

[tex]5+2=-7[/tex]

[tex]7=-7[/tex]

[tex]1=-1[/tex]

x∈Ф

Answer:

Options A, D and F

Step-by-step explanation:

From the picture attached,

lines 'l' ad 'm' are the parallel lines and line 't' is a transversal intersecting each line at two different points.

From the angles formed at the points of intersection,

∠5 ≅ ∠8 [Vertical angles]

∠5 ≅ ∠4 [Alternate interior angles]

∠5 ≅ ∠1 [Corresponding angles]

Therefore, Options A, D and F will be the correct options.

Answer:

You would have to rent 28 movies.

Step-by-step explanation:

You would set up the problem as a system of equations. This means that you have to have two equations.

Dish: [tex]y=3.50x+40[/tex]

Direct TV: [tex]y=2.25x+75[/tex]

In order to find the answer to these, you can either graph them or set them equal to each other. If you graph them, the answer is where the two lines intersect. For this, we will set them equal to each other:

[tex]3.50x+40=2.25x+75[/tex]

To start, since there is a number with the same variable on both sides, we must subtract the lower one from both sides of the equation. In this case, we will subtract [tex]2.25x[/tex] from both sides, giving us:

[tex]1.25x+40=75[/tex]

Now, we solve like a normal two-step equation.

Subtract 40 from both sides:

[tex]1.25x=35[/tex]

After that, we will divide both sides of the equation by 1.25:

[tex]\frac{1.25x}{1.25}=\frac{35}{1.25}[/tex]

This gives us:

[tex]x=28[/tex]

Which means you would have to rent 28 movies exactly in order for their prices to match.

Answer:

ok. its  8/24. but if you got to simplify its 1/3

Step-by-step explanatin

you do 5*4 (the numerator) and 6*4(the denomerator).

this is the lcd(least comon )denominator.

repaet the steps for 2/4 but multiply by 6 on each number

once    

thats

done

its

your

answer

Answer:

5/6 – 2/4

= (10–6)/12

= 4/12

= 1/3

Answer:

LoOk At ThE CaLcUlAtOr

Step-by-step explanation:

Fraction form:  1/1616

Answer:

a. $65

b. $(50 + 15x)

Step-by-step explanation:

A. From the question, we are told that the first 2 GB of data costs $50 while the subsequent extra GB cost $15 per GB

so for 3 GB, the normal $50 is charged for the first 2 GB while an extra $15 is charged for the extra 1 GB

so, the total amount charged for 3 GB will be $50 + $15 = $65

B. Amount to be paid in a month where x GB is used over the normal

Firstly, she will pay the $50 , then for the extra she will be paying $15 * x = $15x

So the amount to be paid will be;

$50 + $15x = $(50 + 15x)

Answer:

B

Step-by-step explanation:

rotate 180 --> translate up by 4:  (x,y)--> (-x,-y) --> (-x,-y +4)

Answer:

The answ is B

Step-by-step explanation:

Remember. Why is it called parallelogram. Look at the first section of the word parallelogram. You can see “parallel.” Rhombus has 4 parallel lines that are diagonal to each other.

Answer:

The relation is a function.

Step-by-step explanation:

Since there is one value of  y  for every value of  x  in  ( 2 , − 7 ) , ( 3 , − 7 ) , ( 4 , − 8 ) , this relation is a function.

Answer:

37,502

Step-by-step explanation:

With the provided details we have:

Range of number = 37,493 - 37,503

The number is even number

Therefore, possible options are:

37,494

37,496

37,498

37,500

37,502

When number rounded to nearest tens, is  less than the original number

Rounding off above numbers to nearest tens we have

37,490

37,500

37,500

37,500

37,500

There is only 2 numbers which full fill the condition of original number number being smaller than the rounded off number.

37,494 and 37,502

The next condition is on rounding to nearest 1,000's

37,494 rounded to 37,000

37,502 rounded to 38,000

Provided that the rounded number in 1000's is more than the original mystery number.

37,000 is less than 37,494 thus not feasible.

38,000 is more than 37,502

This is the mystery number.

Answer:

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\ [/tex]

where

(x1 , y1) and (x2 , y2) are the points

We have

[tex]m = \frac{0 - 4}{1 - - 3} = - \frac{4}{4} = - 1 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

The answer is x = -35

8km - 24 minutes, to find the unit rate (how long it took to run 1km)

We would make a ratio,

8:24

Now just simplify,

8:24

=

1:3

Therefore the unit rate would be 1 kilometer covered for every 3 minutes.

Answer:

0.33 repeating kilometers per minute. 1km/3min

Answer:

About 48 members would be expected to say that dues be raised

Step-by-step explanation:

Here, we shall be using a case of a representative sampling to determine the actual.

Out of the 100 selected members, 6 said the dues should be raised;

This represents a percentage of 6/100 = 6%

So out of the 800, the expected number of members that would ask for a dues raising will be;

6/100 * 800 = 48

Answer: Jon collected 173 stamps.

Answer:

14, 18,

Step-by-step explanation:

It goes by 4's. 2 ,6 ,10 ,14 ,18.

Answer:

2, 6, 10, 14, 18

Step-by-step explanation:

Yeah it going by 4's