Mathematics High School

I NEED HELP!
The function f(x) is a quadratic function and the zeros of f(x) are - 2 and 5. The y-intercept of f(x) is 30. Write the equation of the quadratic polynomial in standard form.
f(x)=___________

Answers

Answer 1

Answer:

Step-by-step explanation:

First of all you have to put the zeros into factor form.

y1 = (x + 2)(x - 5)

Notice that the x changes sigh. You say that the zeros are -2 and  5. To get y1 to go to zero, you must make x the opposite sign of what you are given.

Now you have to expand the factored form to get the standard form

y = x^2 + 2x - 5x - 10

y = x^2 - 3x - 10

That's not the right answer.

f(0) = 30 but you have - 10 at the end so you have to multiply the factored form by - 3

-3(f(x)) = -3(x + 2)(x - 5)

-3(f(x)) = -3(x^2 - 3x - 10)

f(x) = -3x^2 + 9x + 30    

f(0) = -3(0)^2 + 9(0) + 30

f(0) = 30

The quadratic still has roots of (x +2)(x - 5) but that 3 makes the y intercept = 30.

See the graph below.

I NEED HELP!The Function F(x) Is A Quadratic Function And The Zeros Of F(x) Are - 2 And 5. The Y-intercept

Related Questions

Mr. Martin had 7 eggs. He used half (½) of these eggs plus one-half (½) another egg to make an omelet. He then used half (½) of what was left plus half (½) another egg to make a batch of cookies. Finally, he used half (½) of what was left plus one-half (½) an egg to make a meatloaf.

Answers

Answer:

Number of eggs used to make meat loaf = 1

Step-by-step explanation:

The total number of eggs used to make omelet =

[tex]\frac{7}{2} + \frac{1}{2}\\\frac{8}{2} \\4[/tex]

The total number of eggs used for making cookies

[tex]\frac{3}{2} + \frac{1}{2} \\\frac{4}{2}\\2[/tex]

He is now left with 7 -4-2 = 1 egg only

So he uses this one egg to make meat loaf

A coat manufacturer puts 104 coats in a shipment they sent out 41 shipments how many coats did they manufacture send out

Answers

Answer:

The answer is 4,264.

Step-by-step explanation:

(Daily math question for points!!) A circle has a circumference of 50.26cm
To the nearest centimeter, what is the diameter of the circle?

Answers

Answer:

7.99912744cm

Step-by-step explanation:

Answer: 16

Step-by-step explanation:

Circumference is 50.26 = pi*d d = 50.26/3.14 = 16

The net of a triangular prism is shown. Use the ruler provided to measure the dimensions of the net to the nearest half centimeter.







Which measurement is closest to the total surface area of the triangular prism in square centimeters?

20 cm2

8 cm2

14 cm2

6 cm2

Answers

14cm2 is the correct answer to this question

how would I word that it is being doubled in size?

The question is how did D get to E. ​

Answers

Answer:

It doubled up is what you could say

which of the following inequality has (5,1) as a solution? a.)3x+y≤3 b.)3x-y≤3 c.)3x-y<15 d.)3x+y<15​

Answers

Answer:

i think its A :)

Step-by-step explanation:

The measures of the angles of a triangle are shown in figure below. Solve for x.

Answers

Answer:

Your answer will be 50

Step-by-step explanation:

First, add 62 + 68 to get 130.

Then, substract 130 by 180. Why? 180 HAS to be the total angle. 180 - 130 = 50

Therefore you have your answer.

the square of a number decreased by 15 is twice the number. find the number

further explanation please

Answers

Answer:

x = 5, -3

Step-by-step explanation:

x² - 15 = 2x

x² - 2x - 15 = 0

(x - 5)(x + 3) = 0

given that f(x) = 3x + 5, find f(x+2)

Answers

f(x+2) = 3(x+2) + 5
= 3x + 6 + 5
= 3x + 11

Answer:

f(x)=3(x)+5

f(x+2)=3(x+2)+5

=3x+6+5

=3x+11

help me i give brainliest.

Answers

310 >_ (greater than or equal to) 35x + 9
- 9 -9
301 >_ 35x
/35 /35
8.6 >_ x
Since 8.6 is not a whole number, the answer for the second part is
X<_(less than or equal to) 8

100 POINTS!!! Given f(x) = [tex]4x^2[/tex] + 6x and g(x) = [tex]2x^2[/tex] + 13x + 15, find [tex](\frac{f}{g} )[/tex](x). Show your work.

Answers

The answer is 2x/x+5

See the picture for explanation plz

The area of a rectangle is 560 square inches. The length is 3 more twice the width. Find the length and width.

Answers

Answer:

l = 35 inches and b = 16 inches

Step-by-step explanation:

Let length be b and width be b.

The area of a rectangle is 560 square inches.

Length is 3 more twice the width.

l = 2b+3 ....(1)

We know that,

Area = length × width

560 = (2b+3)b

[tex]2b^2+3b-560=0\\\\b=16,-17.5[/tex]

Put b = 16 in equation (1).

l = 2(16)+3

= 35 inches

So, the length is 35 inches and the width is 16 inches.

A cylinder with the height of 6km has a volume of 384km3 what is the radius?

Answers

Answer:

r = 8

Step-by-step explanation:

V = π r^2 h so 383 = r^2 (6)

383 / 6 = r^2

64 = r^2 so

r = 8

Help!! I will give brainlest

Answers

Answer:

Divide 9 from both sides

Step-by-step explanation:

9x = 45

[tex]\frac{9x}{9} = \frac{45}{9}[/tex][tex]x = 5[/tex]

can Someone help me ​

Answers

Answer:

1. congruent

2. congruent

3. not congruent

4. not congruent

5. congruent

6. congruent

7. congruent

8. congruent

9. congruent

Step-by-step explanation:

Step-by-step explanation:

there you go I hope this helps you

(4x3+2x+6)+(2x3−x2+2

Answers

Answer:

Simplify the expression.

4x^3+x^2+10

Step-by-step explanation:

The probability of randomly selecting two oranges from a bowl of 5 oranges and 4 tangerines if the first selection is replaced

Answers

Answer:

25/81

Step-by-step explanation:

The probability of randomly selecting two oranges = (number of oranges in the bowl / total number of fruits in the bowl) x (number of oranges in the bowl / total number of fruits in the bowl)

total number of fruits in the bowl = 5 + 4 = 9

5/9 x 5/9 = 25/81

HELP its a story of blackout
Question: Fill in the blanks to Explain why the narrator goes to the planetarium?

Answers

Answer:

Dark,light, stars

Step-by-step explanation:

The inference shows that the narrator goes to the planetarium to view stars.

What is an inference?

An inference simply means the conclusion that can be deduced based on the information given in a literary work.

In this case, the inference shows that the narrator goes to the planetarium to view stars. A planetarium is a building that has images of stars, planets, and constellations.

Learn more about inference on:

https://brainly.com/question/25280941

Mod 12 Exam
Determine whether or not the triangle with the given side lengths is a right triangle.
51 feet, 14 feet, 49 feet
Don't forget to explain your reasonings


Answers

the answer is 16 reasoning is the dimensions add up an submit

help please I really ned it

Answers

Answer:

sqdfnm swfqwef

Step-by-step explanation:

wqfjqwebnkjf qwebf

ill give brainliest pls

Answers

The answer is 207.

Search up the site Mathaway. It gives you answers.

Which choice gives the solution of this inequality? 3t+ < 28​

Answers

Answer:

its 9.33 reapetting or just 9.33

Step-by-step explanation:

Can someone help asap

Answers

Answer:

A.  Because both of the other lines are bigger.

Step-by-step explanation:

ITS A !!! ITS A !!!!!!

Kirti bookstore sold books worth Rs.285891 in the first week of june and books worth Rs.400768 in the second week of the month .How much was the sale for two weeks together ? In which week was the sale greater and by how much?

Answers

Answer: A)Sale for two weeks =Rs. 686,659.  b)\Kriti books had greater sales in the second week than the first by Rs.114877

Step-by-step explanation:

Price of books sold in the first week=Rs.285891

Price of books sold in the second  week=Rs.400768

Total Amount of books sold in the two weeks=Rs.285891 +Rs.400768 =

Rs. 686,659.

Fro the question, we can see that Kriti books store has more sales in the second week.

Which is greater than in the first week by Rs.114877

Rs.400768 -Rs.285891 =Rs.114,877

Find the product.
Y^4 x Y^3

Answers

Here is the answer!!!!!!!
xy7 is the correct answer

Which is other endpoint of line segment with one endpoint at (1,3) and midpoint (3,5)

Answers

Answer:(9,3)

Step-by-step explanation:

A bakery sells chocolate cupcakes and mocha cupcakes. One day it sold 153 chocolate
and 187 mocha. What percent of the cupcakes sold that day were chocolate?

Answers

Answer:

45% of the cupcakes baked on that day were chocolate flavored.

Step-by-step explanation:

Hey there!

We're given that the bakery sold 153 chocolate cupcakes and 187 mocha cupcakes.

Let's find the total number of cupcakes baked in a day.

[tex]153 + 187 = 340[/tex]

Now, we need to find the ratios of the cupcakes. Of the 340 cupcakes baked, 153 were chocolate flavored. Therefore, we can create a ratio between the two values and find the percentage.

Step 1: Define Values

153 chocolate cupcakes baked340 cupcakes in total

Step 2: Create Ratio and Simplify

[tex]\displaystyle \frac{\text{153 chocolate cupcakes}}{\text{340 total cupcakes}} = \frac{153}{340} = 0.45[/tex]

Step 3: Convert from Decimal Form to Percentage Form

[tex]0.45 \times 100\% = 45\%[/tex]

Therefore, we have determined that 45% of the cupcakes baked on that day were chocolate flavored.

Sally's huge dog weighed 175 pounds in 2018 and then weighed 145 pounds in 2020. What was the rate of change in weight?
pounds per year?

Answers

Answer: 15 lbs per year

Step-by-step explanation:

Huge dog lost 30 lbs in a span of 2 years so divide to find rate of change which is 15lbs per year

Answer: -15 pounds per year

Step-by-step explanation:

We can first list out all the information like Year, Weight

so (2018, 175) and (2020,145)

It asks to find the slope, so we just use the slope formula

175-145/2018-2020 = 30/-2 which is -15

What’s the answer????

Answers

the answer is b. subtract 3 from both sides
I’m agree with the answer above me.

an earhtquake magnitude 2.0 or less

Answers

Richter  magnitude Earthquake effect

< 2.0 Micro Micro earthquakes, not felt.

2.0-2.9 Minor Generally not felt, but recorded.

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