Jasmine is studying the polynomial function f(x)=-x^2+8x+18. Which of the following statement(s) about this function are true?
I. The polynomial function will open down.
II. The polynomial function has a minima of (4, 34).
III. The polynomial function has two roots.
IV. The axis of symmetry of the function is x=–4.

A. I and IV
B. II and III
C. I and III
D. lII and IV

Answers

Answer 1
Answer is c I’m positive

Related Questions

How many points does a graph of the polynomial function crosses the y-axis?

Select one:

a. 0

b. 1

c. n times if n is the degree of the polynomial function

d. Many times​

Answers

Answer:

B. 1

Step-by-step explanation:

It is impossible for a function to cross y-axis more than two points. As there cannot be two y-values in a single x-value.

Basically there are no functions that cross y-axis more than two points.

Sydney is going to a carnival that has games and rides. Each game costs $1.25 and each ride costs $2.25. Sydney spent $24.25 altogether at the carnival and the number of rides she went on is 3 more than the number of games she played. Determine the number of games Sydney played and the number of rides Sydney went on.

Answers

She went on 8 rides and 5 games because 2.25*8=18 1.25*5=6.25
18.00+6.25=24.25 and 8-5=3.

Find the next three terms for the following arithmetic
sequence:
-3,-1, 1,

Answers

Answer:

3, 5

Step-by-step explanation:

It is counting up by +2

Answer:

3 and 5

Step-by-step explanation:

The common difference d in an arithmetic sequence is

d = a₂ - a₁ = - 1 - (- 3) = - 1 + 3 = 2

To obtain a term in the sequence add d = 2 to the previous term, that is

a₄ = a₃ + 2 = 1 + 2 = 3

a₅ = a₄ + 2 = 3 + 2 = 5

What is the decay factor of the exponential function
represented by the table?
O1/3
O2/3
O 2
O 6

Answers

Fact: It is not 6!

And I swear I am not lying!

Answer:

A. 1/3

as x increases the values of the function all become one-third of each other !!

6 is 1/3 of 18

2 is 1/3 of 6

2/3 is 1/3 of 2

-2(v – 7) – 8v(-2v – 8)

Answers

Answer:

= 16v^2+62v+14

Step-by-step explanation:

I recommend you using the website "Symbolab Algebra Calculator". It will really help you.

Five years ago you deposited a sum of money into a savings account which has earned $150 in interest. The interest rate for the account is 3% simple interest per year. How much money was originally deposited in the account?

Answers

Answer:

$1000

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

I = 1000 × 0.03 × 5 = 150

I = $ 150.00

The simple interest accumulated

on a principal of $ 1,000.00

at a rate of 3% per year

for 5 years is $ 150.00.

Will the solution (4, 6) satisfy the following equation: x + y = 18?

Answers

No because 4+6= 10 not 18
No it doesn’t match
4+6 =10
4+6≠18

Maths please, (1,2 and 3) soon please ​

Answers

Answer:

1 = number 2 (12x^3 + 20x^2)

2= number 1,  10^3

3= not sure, i suppose it is 5/8

Step-by-step explanation:

Make a graph that matches the rule y=2x – 3.

(Need help ASAP)

Answers

Answer:

Answer in image below :)

Step-by-step explanation:

The length of a rectangle is 15 more than 3 times the width. The perimeter is 110. What is the area

Answers

Answer:

450 units squared

Step-by-step explanation:

2(length)+2(width)=Perimeter

W=x     Length=15+3w   Perimeter=110

2(15+3w)+2w=110

30+6w+2w=110  

8w=80

w=10

So:  Length is 45 and Width is 10

Area is l*w

Area=45*10

Area is 450 units squared

A recipe calls for 2 1/2 cups of flour. The recipe makes 5 servings. How many cups of flour are needed to make 7 servings?

Answers

Answer:

Step-by-step explanation:If a recipe calls for 2 1/2 cups of flour and you want to make five times the ... However, measuring flour in cups is far from precise and the dish, pie or cake you ... So for example if your recipe with 2 1/2 cups flour calls for 1 cup water when you make a 5 ... If I used 4 cups of flour, how much of the other ingredients are needed

A carpenter has a wooden stick that is 84 centimeters long. She cuts off 25% from the end of
the stick. Then she cuts the remaining stick into 6 equal pieces. What is the length of each
piece?

How did you get 63?

Answers

Answer:   10.5 cm

=======================================================

Explanation:

25% = 25/100 = 0.25

25% of 84 = 0.25*84 = 21

So 21 cm has been cut off, leaving 84-21 = 63 cm left over

Or you could say that if 25% has been cut off, then 75% of the stick remains

So, 75% of 84 = 0.75*84 = 63 cm remains.

The remaining length of 63 cm is cut into 6 equal pieces

Each smaller piece is 63/6 = 10.5 cm long

If x and y are positive real numbers, which expression is equivalent to the expression below?
[tex](125x {4}y^{ \frac{3}{2} })^{ \frac{1}{3} } \div (xy)^{ \frac{1}{2} } [/tex]

Answers

5x^5/6

Step-by-step explanation:

PLS help me
if you get it right i will give brainliest

Answers

Answer:

yes I think

(correct me if I'm wrong)

Answer : 34

Step-by-step explanation:

Solution,

Given,

base = 16

perpendicular = 30

hypotenuse = ?

Now,

By the formula of Pythagoras Theorem,

h^2 = p^2 + b^2

h^2 = 30^2+16^2

h^2 = 900+256

h = sqrt ( 1156 )

h = 34

Therefore, the value of x (hypotenuse) is 34.

GIVING BRAINLIEST!! Please answer.
if x ∆ y means x/y - x^2, then the value of 2/3 ∆ 4/5 is,
a)7/18 b)14/25 c)4/45 d)34/45 e)29/150

Answers

Answer:

a) 7/18

I hope this helps!

Please help me again

Answers

Answer:

The choice is B

vertex is (-3, 25/2)

i think it’s c because 3x+8 stands out to me nd that’s basically the vertex because ax+b is the vertex.

Harry is reading a book that is 597 pages long. He tells a friend that he is about 2/3 of the way done. About how many more pages must Harry read before he finishes the book?

Answers

Answer:

This reading habit has helped me finish 7 books in 10 weeks. ... reports he had brought with him and said, “Read 500 pages like this every day. ... You simply have to make time to read.

A Ik for sue that the answer is 199

Which expression can be used to find the retail price of an item that was bought at wholesale for $112 and sold at a 40% markup?
$112 + 4($112)
$112 – 4($112)
$112 – 0.40($112)
$112 + 0.40($112)

Answers

Answer:

$112 + 0.40($112)

Step-by-step explanation:

Stop playing and just put the answer :I

Answer:

Step-by-step explanation:

Can someone help me with this question Please.

Solve for the slope, x- and y-intercepts given the equation below.

7x + 2y = -10

x-intercept:

y-intercept:

Slope:

Answers

X intercept: (-10/7, 0)
Y intercept: (0, -5)
Slope: -7/2
First, you should put it into y-intercept form:
7x+2y=-10
2y=-10-7x
Y=(-7x-10)/2

The slope is the coefficient of x right now, so the slope is -7/2.

The x-intercept’s y is always 0, so we plug that into the equation as y=0.
7x+2y=-10
7x+2(0)=-10
7x+0=-10
X=-10/7

Therefore, the x-intercept is (-10/7,0).

Now, you do the same thing for the y-intercept where x=0 to find your y-intercept.

Hope that made sense!

A restaurant's profits for the first three weeks of September are $15,000; $9,300; and $12,000. What are the average profits for the first three weeks of September?

Answers

Answer:

$12100

Step-by-step explanation:

Step one:

Given data

The given profits are

First week= $15,000

Second week= $9300

Third week = $12,000

Required

The average profit

Step two:

The number of weeks is 3

hence the average is

= 15000+9300+12000/3

=36300/3

=$12100

Math homework plz help

Answers

Answer:

19

Step-by-step explanation:

38/2=19

Answer:

r = 19

Step-by-step explanation:

2r = 38 (Given)

r = 19 (Divide by 2 on both sides)

A person invests $485 in an account that earns 2.2% annual interest compounded continuously. Find
when the value of the investment reaches $2,200. If necessary, round to the nearest hundredth.

The investment will be reach $2,200 in approximately ______ years.

Answers

Answer:

12 years

Step-by-step explanation:

A furniture store is getting ready for a big sale and marking all their prices down by 45%. If one of their items is regularlly priced at $375, what is the sale price?​

Answers

Answer:

$206.25

Step-by-step explanation:

Regular price of item = R= $375

Price after 45% off = (1-0.45) x 375

                               =$ 206.25

Can some one help me out!!

Answers

Answer:

The measure, in degrees, of ∠ABC = 25°

Hence, option A is true.

Step-by-step explanation:

Given

The exterior angle m∠CBD = 155°

To determine

The measure of ∠ABC

We know that the exterior angle and interior angle are supplementary angles.

In other words, adding the interior angle and an exterior angle would give us 180°.

Here:

m∠CBD = 155° is exterior angle

∠ABC is the interior angle.

When we add m∠CBD and m∠ABC we would get 180°.

m∠CBD + ∠ABC = 180°

substituting m∠CBD = 155°

155° + ∠ABC = 180°

∠ABC = 180° - 155°

∠ABC = 25°

Therefore, the measure, in degrees, of ∠ABC = 25°

Hence, option A is true.

Please help I cannot figure out this math problem

Answers

your equation should be
$4(40 tickets) + $5(X) = $400
160 +5x = 400
-160 -160
0 5x = 340
divide both sides by 5
5x/5 = 340/5
x = 68

so they need to sell 68 tickets at the door.

4(40) + 5(68) = 400
160 + 340 + 400
400 + 400

Mr. Gorelick has gone crazy. He has climbed up to the rafters of the gym 35 feet up and has taken with him a large number of basketballs. Mr. Gorelick can throw a basketball so hard at an angle of declination of 40 degrees that it will knock you out for 17 hours. How far does one of his basketballs travel before hitting someone in the head?​

Answers

Answer:

Let the amount of feet be x

Let declination be y

so 35x at a declionation of 40 degrees 35x+40y=feet traveled before hitting the head

35x

40y

35x +40y= 40-y =35x+40-y

and 35x=35-x

35+40=x-y

The ball travels 43ft

Jk its free points lol

Step-by-step explanation:

Plz can give me the correct answer

Answers

Answer:

29

Step-by-step explanation:

Answer:

-3.4 or in fraction form 3 2/5

Step-by-step explanation:

2/5 = h+5/4

8=5h+25

-5h -5h

-5h+8=25

     -8   -8

-5h=17

5     5

h=-3.4

The cost of a concert ticket last week was $75. This week the concert ticket is $84. What is the percent increase of the ticket from last week to this week’

Answers

The answer is 12% hope this helps let me know

Answer:

12%

Step-by-step explanation:

Find a pair of numbers that have a sum of −3 and a difference of −7.

Answers

Answer:

x = -5 and y = 2

Step-by-step explanation:

You want to start by writing these two equations:

x + y = -3

and

x - y = -7

Then, you want to add the solutions to these two equations, like so:

-3 + -7 = -10

Then, to find the x value, because x > y, divide the answer by two:

-10/2 = -5

So, the x value is -5.

With this information, you can figure out that the y value is 2.

Check the answer:

-5 + 2 = -3

-5 - 2 = -7

Hope this helped

Match the system of equations to their solutions

Answers

Answer:

2x + y = 12 & x = 9 - 2y --- (x = 5, y = 2)

x + 3y = 16 & 2x - y = 11 --- (x = 7, y = 3)

y = 11 - 2x & 4x - 3y = -13 --- (x = 2, y = 7)

2x + y = 11 & x - 2y = -7 --- (x = 3, y = 5)

Step-by-step explanation:

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