(08.01 LC)

A biologist created the following graph to show the relationship between the temperature of water (x), in degrees Celsius, and the number of insect larvae (y) in the water:

graph of y = -2x^2 + 20x + 400

What does the y-intercept of the graph represent?

Answers

Answer 1

Answer:

400

Step-by-step explanation:

Remember y=mx+b

b=y-intercept

it's the starting point on a graph.


Related Questions

Whats the area of a square that is 9m and 9m?

Answers

Answer:

81 m².

Step-by-step explanation:

To find the area of a square, you will simply need to do the side-length squared, or [tex]A= l^{2}[/tex].

If the side-length is 9, we can do:

A = 9²

A = 81 m²

Step-by-step explanation:

Step 1:  Find the area

An area of a square has a formula of → [tex]A= s^2[/tex]

[tex]A = 9 * 9[/tex]

[tex]A = 81[/tex]

Answer:  [tex]Area=81m^2[/tex]

Find the interest on $4,500 at 5.2% for 2 and a half years. Which of the following equations would be used to solve this problem?
Please help!

A: 4500 = P(0.052)(2.5)

B: I = (4500)(5.2)(2.5)

C: I = (4500)(0.052)(2.5)

D: I = (4500)(0.52)(2.5)

Answers

The answer is C: 1=(4500)(0.052

The equations used to solve this problem is I = (4500)(0.052)(2.5).

The correct option is (C).

What is Interest?

Simple interest is a loan interest payment that borrowers pay to lenders. It is based solely on the principal and does not account for compounding interest. Straightforward interest is not limited to certain loans. It is also the form of interest that banks pay on savings accounts.

Given:

P = $4500

R= 5.2%

Time= 2 and half year

Using the formula of Simple Interest

= P x R x T / 100

= (4500 x 5.2 x 2.5)/ 100

= (4500 x 0.052 x 2.5)

= $585

So, the equation is: : I = (4500)(0.052)(2.5)

Learn more about Interest here:

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Martin made 12 out of 40 shots during the basketball game. What percent of his shots did he make?

Answers

Answer:

30 percent

Step-by-step explanation:

12/40=0.3

0.3=30 percent

Answer:

30%

Step-by-step explanation:

To find a percent, use this equation:

x/100 = n/t

where x is the percent, n is the select number of things, and t is the total number of things

Substitute:

x/100 = n/t

x/100 = number of shots Marin made/number of shots attempted

x/100 = 12/40

Now, we need to cross multiply, or multiply the numerators by the denominators of the other fraction, and vice versa.

Multiply:

x/100 = 12/40

x(40) = 40x

100(12) = 1200

40x = 1200

Now, divide both sides of the equation to find the value of x.

Divide:

40x = 1200

/40     /40

x = 30

Now we have the percent is fraction form: 30/100

To make it a percentage, simply take the numerator and add the % sign.

Therefore, Martin made 30% of his shots.

Each food item contributed to the local food bank is recorded as a positive number, while each food item donated to a family is recorded as a negative number. The food bank started with 508 items. How many items were on the shelves after the following contributions and donations?

-8, -29, +17, -12, -9

Answers

Answer:

467

Step-by-step explanation:

-8-29+17-12-9= -41

508-41= 467

can someone please help me with this​

Answers

Answer:

Not Sure

Step-by-step explanation: I dont know the anwser but I can try to help, all I know is the the measure of angle EDF is supplementery to angle EDG so I hope that helps. In other words, 180-21x+5 = measure of angle EDF.

Write the equation 3x+2y- 5 = 0 in normal form. Then, find the length of the normal and the angle it makes with the


positive x axis.

Answers

Hey, hope you are having a nice day. The answer I got was y=-1.5x+2.5. This was because most equations are y=mx+b. So y had to be by itself.
3x+2y-5=0
-2y. -2y
3x-5=-2y since 0 doesn’t do anything
——- ——
-2. -2
-1.5 +2.5 =y

Answer:

The answer is a

Step-by-step explanation:

Jill’s coach used a computer program to help her improve the distance she can throw a softball. The computer gave a readout of the path of her best throw. The path of this throw was represented by the quadratic equation y = –0.15x2 + 1.3x + 4, where x represents the number of feet the ball traveled and y represents the height of the ball in feet. Use the graphing calculator to graph the equation. At what distance did the ball hit the ground? Round your answer to the nearest hundredth. feet

Answers

Answer:

11.08 feet

Step-by-step explanation: I just got it wrong and it told me the answer. :/

Answer:

11.08 feet

Step-by-step explanation:

Got it right on edge

Jorge PAGO DE CONTADO $200 000 POR UN AUTOMÓVIL. SI ORIGINALMENTE COSTABA $250 000 ¿Qué PORCENTAJE DE DESCUENTO LE HICIERON ?

Answers

Answer:

20%

Step-by-step explanation:

$(200 000/ 250 000) = .8 = 80%, seguís pagando 80% entonces distes un descuento de 20% (100-80=20%)

The graph of f(x)=(x-4)^2+k is shown below. identify the value of k.

K=?​

Answers

Answer:

k = 1

Step-by-step explanation:

k is the value that will shift the graph up or down. In comparison with the parent function, this graph is 1 unit higher there for k is equal to 1.

Please mark me as brainliest is this helped you. Thank you!

You and your friend play the same note. Your friends instrument is in tune and is playing a note it 256 Hz, but your are slightly out of tune and are playing a note at 260Hz. What is the beat frequency

Answers

Answer:

In fact, they'll do that if only ONE of them is out of tune.

As long as there's a difference between the two frequencies,

they'll create beats.

Step-by-step explanation:

hope this helps plz brainiest

Find the volume of the cylinder to the nearest tenth. Use 3.14 for it.
6 m
15 m
The volume of the cylinder is approximately
m​

Answers

Answer:

1696.46

Step-by-step explanation:

the formula of a cylinder volume is πr2h. Which is 3.14 x 6squared x 15. And then you'll have the volume.

Ken’s prediction for December was –5°C. The actual low temperature was 3 degrees higher than his prediction. The actual low temperature in December was _ºC.

Answers

Answer:

 -2 °C

Step-by-step explanation:

Add 3 °C to get a temperature 3 °C higher.

 -5 °C + 3 °C = -2 °C

Answer:

-2

Step-by-step explanation:

hope this helps :)

Bozo the clown brings a total of 20 balloons to Jake’s birthday party. There are 7 yellow, 2 red, and 11 green balloons. He reaches into his pocket and randomly selects a color to make a balloon animal. If he pulls a yellow balloon first, what is the probability of the next color to be selected randomly will also be yellow?

Answers

Answer:sorry mabye if you elpan it mire i can help

Step-by-step explanation:

Select the best answer for the question.
15. What is the total of 49 1/4+3 3/8?
A. 4578
B. 52 1/2
C. 4518
D.5258
O Mark for review (Will be highlighted on
the review page)

Answers

So the right answer is 421/8

Look at the attached picture

Hope it will help you..

Answer:

[tex] \frac{421}{8} [/tex]

Step-by-step explanation:

[tex]49 \frac{1}{4} + 3 \frac{3}{8} \\ \frac{197 \times 2+ 27}{32} \\ \frac{394 + 27}{8} \\ = \frac{421}{8} [/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Solve by completing the square with working out please

x^2-7x-30=0

Answers

Answer:

x1 = -3 and x2 = 10

Step-by-step explanation:

hope this helps

Answer:

answer attached below

Step-by-step explanation:

The graph represents this system of equations.
What is the solution to the system of equations?
Sv=4-x
v=x-2
(-2,4)
(1,3)
(2,4)
(3, 1)
-5 -4 -3 -2

Answers

Answer:

(3, 1 )

Step-by-step explanation:

The solution to a system of equations give graphically is at the point of intersection of the 2 lines.

The point of intersection is (3, 1 )

Thus solution is (3, 1 )

A point B(−4,4) is rotated 90° clockwise about the origin. FInd the coordinates after rotation.

Answers

Answer:

It would be positive(4,4)

Step-by-step explanation:

hope it helps

(4,4)

since your moving 90 degrees to the next x-axis (i think)

A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains
80
%

pure antifreeze. The company wants to obtain
320

gallons of a mixture that contains
55
%

pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed?

Answers

Answer:

let w = amt of water required

:

An equation based on the the percent water, an 80% solution is 20% water.

 

.20(320-w) + w = .50(320)

64 - .2w + w = 160

.8w = 160 - 64

w = 96%2F.8

w = 120 gal of water to produce 320 gal of 50% antifreeze

:

320 - 120 = 200 gal of 80% solution

Water: _120___ gallons

Premium Antifreeze: __200___ gallons

Step-by-step explanation:

I need help with this math question :(

Answers

Answer:

k = 5,

y = 5x

Step-by-step explanation:

If y is proportional to x,

y ∝ x

Then the equation will be

y = kx

Her k = proportionality constant.

Now we choose a point from the given table.

Let the point is (2, 10).

By putting the values of x and y in the equation,

10 = 2×k

k = [tex]\frac{10}{2}[/tex]

k = 5

This will be true for any point we choose from the table.

And the equation will be y = 5x

!Emergency math question!

Answers

Answer:

Equation: P = 1900 + 70n

Answer if 26 copies sold= 3720

Step-by-step explanation:

Answer:

p=1900 +70n

Step-by-step explanation:

What is the volume of a hemisphere with a radius of 29.6 in, rounded to the nearest tenth of a cubic inch?

Answers

Answer:

V = 54316.7 in³

Step-by-step explanation:

V = 54316.7463 in³

The solution is, the volume of a hemisphere with a radius of 29.6 in, rounded to the nearest tenth of a cubic inch is, 54289.2 cubic inches.

What is volume?

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

here, we have,

a hemisphere with a radius of 29.6 in,

i.e. The radius is 29.6.

now, we know that,

the volume of a hemisphere = 2/3 * pi* r^3

using the formula, we get,

V = 2/3 * 3.14 * 29.6³

   =54289.2100267

now, rounded to the nearest tenth  we get,

54289.2100267 ≈ 54289.2

The volume of the hemisphere should be 54289.2 cubic inches.

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Question 18(Multiple Choice Worth 1 points) Using the given zero, find all other zeros of f(x). -2i is a zero of f(x) = x4 - 45x2 - 196

Answers

The picture shows the zeros of f(x). -2i is a zero of f(x) = x4 - 45x2 - 196

Are the following triangles congruent?
A) SAS
B) ASA
C) SSS
D) NOT

Answers

the answer is
A) SAS

Which equation goes to the graph?

Answers

Nana andbsbsbbbvbnsn hshsbnams

A linear system is classified as inconsistent. Choose True or False for the statement about the graph of the system.The slopes of the lines are the same.

Answers

Answer: true

Step-by-step explanation:

A system of linear equations can be written as:

y = a*x + c

y = d*x + f

Now, the idea of this is find the point (x, y) where both linear equations meet.

Particularlly, if the slope in both equations is the same, we will have two options:

1) The lines are parallel, so they never met, and the system has no solution.

2) The lines are the same lines (this happens when c = f) and this means that we have infinite solutions.

So it is true, if the slopes are the same, the linear system is not consisten.

At a local pizza place, the cost of a large cheese pizza is $13.99. Each additional topping is $1.25. Use complete sentences to describe the dependent and independent variables in this situation

Answers

Answer:

The independent variable is the large cheese pizza because it doesn't need the toppings, the dependent variable is the additional toppings because they can't go anywhere without the large cheese pizza.

Step-by-step explanation:

Write a word problem with dollars and cents that can be solved using subtraction. Include the solution.

Answers

Jim have a dollar in 20 cent in his pocket and takes out a dollar how much he have left in his pocket answer- 20 cent

Answer:

If Sarah has $300, and she buys a library card for $9.50 and is charged $3.50 per month. If she goes to the library for 9 months, how much does does she have left?

Step-by-step explanation:

$276

HELP!
This pattern follows the rule divide by 5. What is the next number in the pattern?

875, 175, 35, ________

A. 17
B. 12
C. 7
D. 3

Answers

Answer: C

Step-by-step explanation:

C
Because 35 divided by 5 is 7

Given sec A =
✓97/9
and that angle A is in Quadrant I, find the exact value of tan A
in simplest radical form using a rational denominator.

Answers

Answer: 4/9

Step-by-step explanation:

9^2+B^2= 97

81+b^2=97

b^2=16

B=4

opposite=4

adj=9

tan= opposite/adj = 4/9

-7x = 42

I need an answer

Answers

Look at the attached picture

Hope it will help you

Answer:

[tex]x = - 6[/tex]

Step-by-step explanation:

[tex] - 7x = 42 \\ \frac{ - 7x}{7} = \frac{42}{ - 7} \\ x = - 6[/tex]

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