Find the y-coordinate of the y-intercept of the polynomial function defined
below.
f(x) = 9x^2 – 7 – 8x

Answers

Answer 1
The y intercept is where the function passes through the y axis, so the “x” value needs to equal 0. We sub 0 in for “x” and solve for “y”.

f(0) = 9(0)^2 - 7 - 8(0)

f(0) = -7

Therefore the “y” coordinate would be -7

The ordered pair would be

(0, -7)

Related Questions

Are the following solutions correct ? Why or why not

Answers

Answer:

[tex]\theta = 0, \frac{\pi}{2}, \pi,...[/tex]

Step-by-step explanation:

[tex]sin\theta + cos \theta = 1 \\\\squaring both the sides\\\\sin^{2}\theta + cos^{2}\theta+2 sin\theta cos\theta = 1 \\\\2sin\theta cos\theta = 0 \\\\sin2\theta = 0\\\\2\theta = 0, \pi, 2 \pi,....\\\\\theta = 0, \frac{\pi}{2}, \pi,...[/tex]

This is the correct solution.

Jeff sells popcorn for $3 per bag. To make a profit each day, he needs to sell at least $120 worth of popcorn. He has sold $36 worth of popcorn today. Which inequality can be used to find the number of bags of popcorn, p, Jeff still needs to sell today to make a profit?
A- 3p - 36_>120
B- 3(p+36) _>120
C- 3p - 12_>120
D- 3p + 36 _> 120

PLEASE ANSWER QUICKLY! 10 POINTS!!!​

Answers

Answer: he needs to sell 28 more bags to sell 120 dollars of popcorn

Step-by-step explanation: I need one more brainliest for the next rank I’d appreciate it

PLEASE HELP ME WITH THIS GEOMETRY PROBLEM!! SHOW WORK!!

Answers

Answer:

Solution given:

In right angled triangle

ABC.

with respect to <C=40°

opposite side=AB

adjacent=BC=DE=30ft

now

relationship between opposite side and adjacent

is given by tan angle

tan 40°=oppo/adjacent

tan40°=AB/30

AB=tan40*30

AB=25.2

Now

height of flagpole =AB+BE=25.2+5=30.2ft

option 4th is a required answer

The terminal side of O is in quadrant Il and sin 5/13 = . What is cos 0?
A. 5/12
B.12/13
C.-5/12
D-12/13

Answers

If the terminal side of θ is in quadrant || and sin θ = 5/13, then the value of cos θ = -12/13.

Given that,

Terminal side of θ is in quadrant ||.

Sin θ = 5/13

We have the trigonometric identity,

sin² θ + cos² θ = 1

Substituting the value of Sin θ = 5/13, we get,

(5/13)² + cos² θ = 1

cos² θ = 1 - (5/13)²

          = 1 - 25/169

          = 144/169

cos θ = √ (144/169)

         = ± 12/13

We have the terminal side of θ is in second quadrant. In the second quadrant, all the trigonometric values except sin are negative.

So, cos θ = -12/13

Learn more about Cosine Value here :

https://brainly.com/question/29162608

#SPJ7

Question
Help me please

Answers

Answer:

CORRECT STATEMENTS:

ABD

Step-by-step explanation:

Which of the following choices is the standard deviation of the sample shown
here?
18, 19, 20, 21, 22
A. 2
B. 12.5
C. 20
D. 2.5
E. square root of 2

Answers

Answer:  E. square root of 2

We can write that in shorthand as sqrt(2)

sqrt(2) = 1.41421 approximately

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

Explanation:

Step 1)

Add up the values to get 18+19+20+21+22 = 100

Divide by n = 5, since there are 5 items in the list. So 100/n = 100/5 = 20

The sample mean is xbar = 20

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

Step 2)

Subtract the mean from each data value

18 - xbar = 18 - 20 = -219 - xbar = 19 - 20 = -120 - xbar = 20 - 20 = 021 - xbar = 21 - 20 = 122 - xbar = 22 - 20 = 2

The results we get are: -2, -1, 0, 1, 2

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

Step 3)

Square the results from the previous step

(-2)^2 = 4(-1)^2 = 1(0)^2 = 0(1)^2 = 1(2)^2 = 4

The results here are: 4, 1, 0, 1, 4

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

Step 4)

Add up those squares from the previous step: 4+1+0+1+4 = 10

Now divide by n = 5 to get 10/n = 10/5 = 2

The result 2 represents the population variance. Applying the square root to the population variance leads to the population standard deviation. So we end up with the final answer of sqrt(2). The answer is choice E.

sqrt(2) = 1.41421 approximately

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

Note: if you want the sample standard deviation, then you divide by n-1 = 5-1 = 4, but the other steps are the same as before.

please show your work

Answers

Answer:

B) 40

Step-by-step explanation:

Angle X and the missing angle inside the triangle are equal as the are opposite angles.

Therefore,

180 - 65 - 75 = 40

Compare the ratios of the two pairs of sides that are opposite and adjacent to Show your work, am offering brainliest and 45 points ‼️‼️‼️

Answers

Answer:

Hope u got your answer

Step-by-step explanation:

U r brilliant

A movie theater has 1000 seats. There are 424 adults and 339 children sitting in seats. How many of the seats are empty

Answers

Answer:

237 seats are empty

Step-by-step explanation:

Answer:

there are 237 seats that are empty

Step-by-step explanation:

9 boys can paint a basketball court in 3 hours how long should 1 boy take working at the same rate​

Answers

1 boy can work about 0.3 hours
i think that’s the answer,but good luck

PLEASE HELP FAST!!! Estimate the line of best fit using two points on the line.

Answers

Answer:

D) y= -1/2x+9

Step-by-step explanation:

if u substitute y with 8 u will get 2

if u substitute y with 5 u will get 8

Answer:

D

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}=xy_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (2, 8) and (x₂, y₂ ) = (8, 5)

m = [tex]\frac{5-8}{8-2}[/tex] = [tex]\frac{-3}{6}[/tex] = - [tex]\frac{1}{2}[/tex]

The line crosses the y- axis at (0, 9) ⇒ c = 9

y = - [tex]\frac{1}{2}[/tex] x + 9 → D

reduce 286/858 to simplest terms

Answers

286/858 to its simplest form is 1/3
the answer to 286/858 is 1/3

Help it is due today

Answers

Answer:

6. (0, 7)

7. (-3, -10)

8. (-3, 9)

9. (2, 0)

Step-by-step explanation:

Answer:

6. (0,7)

7.(-3,-10)

8. (-3,2)

9. (2,0)

A bag contains red and blue marbles, such that the probability of drawing a blue marble is 3/8. An experiment consists of drawing a marble, replacing it, and drawing another marble. The two draws are independent. A random variable assigns the number of blue marbles to each outcome. Complete the probability distribution table on your own paper. Answer the question in the text box below. / What is the probability of drawing exactly one blue marble? Write a simplified fraction.

Answers

Answer:

The probability of drawing exactly one blue marble is 15 over 32

Step-by-step explanation:

did test

Simplify the expression. Write your answer as a power.5^8
5^5​​

Answers

Answer:

5^13

Step-by-step explanation:

when multiplying numbers with the same base, you add the exponents

Answer:

5^13

Step-by-step explanation:

5^8 = 390625

5^5= 3125

Since you have to write you answer as a power you would do 5^8+5^5= 5^13

Which of the following points is a solution for this system of equations:
y = –2x – 11
y = x² – 2x – 36

A. (0,-36)
B. (-3,-5)
C. (0,-11)
D. (5,-21)

Answers

Answer:

D

Step-by-step explanation:

There you go mate, just writing this to be 20 words long so I can answer it

What is the sum of the interior angles in this shape?

Answers

Answer:

720° :)

Step-by-step explanation:

You can find the total interior angle for any shape using the following (n being the number of sides):

S = ( n - 2 ) × 180 °

S = (6-2) * 180

S = 720

I believe 720 because every triangle is 180 so your can be made up of 4 triangles, so multiply 180 times 4

Find the missing side of each triangle. Round your answers to the nearest tenth if necessary
Please explain a step by step

Answers

Answer:

2.8km

Step-by-step explanation:

a = sqrt(c^2-b^2)

a = sqrt(9.9^2 - 9.5^2)

a = sqrt(7.76)

a = 2.78567765544

Round that to 2.8 and there's your answer

it is 2.8 km because if you use the pythagorean theorem you can do 9.5^2+2.8^2=98.09. the square root of 98.09 is 9.9 which is the length of the hypotenuse.

What is the m_ACB?
O 10°
B.
0 50°
(4x)
O 90°
O 180°
(7x-20)
С

Answers

Answer:

180

Step-by-step explanation:

90 + 4x + 7x - 20 equals to 180

Answer:

B. 50

Step-by-step explanation:

Determine the area of the shaded region.
А
6
B
8
A and B are midpoints.

Answers

i need a picture to answer this statement

I really need help no files or links brainly removes it

Finding a final amount in a word problem on exponential growth or decay

An amount of $41,000 is borrowed for 9 years at 6.25% interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?
Use the calculator provided and round your answer to the nearest dollar

Answers

Answer:

A = $70753

Step-by-step explanation:

[tex]A = P(1 + \frac{r}{n})^{nt}[/tex]

P = $41000

r = 6.25% = 0.0625

n = 1

t = 9

[tex]A = 41000(1 + 0.0625)^9 = 70752.91[/tex]

[tex]A = \$70753[/tex]

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

No it's not compulsory.

Step-by-step explanation:

If the ratio of sides are given then that can also help you find angle. Not only that if the relationship between the perpendicular and base are given then you can find angle

E.g.

if the ratios of the sides is 5:4:3 then you can find the angle

True or False
3 is a factor of n(n + 2)(n − 1) by mathematical induction.
Explain why.

Answers

true true true true true true true

Answer:

false

Step-by-step explanation:

3(3+2)(3-1) is not =0

The factor of n(n+2)(n-1) = 1

Someone please help me ?!?!?

Answers

Answer:

2nd is correct

Step-by-step explanation:

ok now mark me brainlist

Sombody please help me

Answers

Answer:

complementary

Step-by-step explanation:

complementary angles are are angles that add up to 90 degrees

What is the value of
(5x2)3 + 16y + 4y for x = 2 and y = 3?

Answers

hello

Step-by-step explanation:

[tex]90.[/tex]

90 is the answer:)

what is the value of 24,093 + 3?
A. 831

B. 8031

C. 8301

D. 8310

Answers

Answer:

B (8,031)

Step-by-step explanation:

None of these could be 24,093 + 3 so I'm gonna assume you meant ÷ instead of +

PLEASE HElp asap
Solve for x.
x = [?]
X + 19
7x + 9

Answers

X + 19 + 7x + 9 = 180
8x + 28 = 180
8x = 180 - 28
8x = 152
X = 152 : 8
X = 19

A rectangular prism is 12 cm long, 6 cm wide and 5 cm high. What is the volume of the rectangular prism?

Answers

Answer:

360cm

Step-by-step explanation:

Volume=mass

volume

The topic is about secant tangle angles

Answers

Answer:

41

Step-by-step explanation:

360-(104+104+111)=41

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