f(x)=-3x^2-20
find f(-9)

Answers

Answer 1

Answer: go to symbolab i swear it will help if not apologies

Step-by-step explanation:


Related Questions

Mr.Shand had $50 in his wallet on Friday after school.That night,He spent $11.50 on a pizza $3.75 on ice cream.One his way home,He found $5 on the ground ,How much money does Mr.Shand have at the end of the night?

Answers

Answer:

39.75

Step-by-step explanation:

so first we do 50-11.50-3.75+5. to simplify it 55-15.25

if u do the math that equals 39.75

to double check 39.75+15.25=55

If you do the math

50.0 - 11.50 = 38.5

38.5 - 3.75 = 34.75

34.75 + 5. = 39 . 75

1. What is the central measure found by adding all numbers in the data set and then dividing by the number of values
A. data
B. mean
C. median
D. mode​

Answers

Answer:

mean will be find in that method

hence, correct option is B

Find the perimeter & area of the following shape.Hint: Look to the opposite sides to figure out the missing sides.

Answers

Answer:

Perimeter=110mm

Area=370mm²

Step-by-step explanation:

In Attached pictures

please give me brainliest if it help you

solve the simultaneous equation 2x+5y=6 and 5x-2y=9​

Answers

Answer:

[tex]x = \frac{57}{29} \ , \ y = \frac{12}{29}[/tex]

Step-by-step explanation:

                            2x + 5y = 6     --------( 1 )

                            5x - 2y = 9     --------( 2 )

                        _____________

     ( 1 ) x 5 =>     10x + 25y = 30   -----------( 3 )

     ( 2 ) x 2 =>    10x - 4y = 18       ----------- ( 4 )

                       ______________

    ( 3 ) - ( 4 ) =>    0 +  29y = 12

                                   [tex]y = \frac{12}{29}[/tex]

Substitute y in ( 1 ) =>

                            [tex]2x + (5 \times \frac{12}{29}) = 6\\\\2x + \frac{60}{29} = 6\\\\2x = 6 - \frac{60}{29}\\\\2x = \frac{174 - 60}{29}\\\\x = \frac{114}{29 \times 2}\\\\x = \frac{57}{29}[/tex]

What it is the surface area of a perfect square pyrimaid when the slant height is 1 and the base width is 3?

Answers

Answer:

15

Step-by-step explanation:

The base would be 3*3, as it's a square. There are 4 triangles, and the area of each triangle is 1*3/2=1.5. 1.5*4+9=15.

Find the length of a diagonal of a square of side 17cm

Answers

Answer:

2*17²=length=578

apply Pythagoras theorem

Help its due rn!!!!!!!!!! Please

Answers

Answer:

C po

Step-by-step explanation:

sana maka tulong po sayo

I have two marks more than you do and the sum of both our marks is equal to 14 what are our marks

Answers

your marks 9 my marks 5

Step-by-step explanation:

1/2 of 14 = 7

7 + 2 = 9

14 - 9 = 5

so your marks are 9 and mine are 5

Hope this helped ..

Pls help this is due soon!!!

Answers

19 for the far left!!!!

Please help me with this it's urgent!

Answers

I think it’s number 1

Answer:

I think finite

Step-by-step explanation:

What are the domain and the range of this function? (PLEASEEE HELP MEE!!))​

Answers

Answer:

Unisciti prestu è tornerete à u megliu di LUCKY hè un mc da spada arte di fà u pudete vede a mo quantità enorme di tempu per esplorà novi modi di ur affari Outta

What’s is the answer plzzzz help

eacg fruit basket has 5 apples and 3 pears . what is the ratio of the total number of fruits to the numbers of pears in each fruit basket ?

Answers

Answer:

The ratio is 5:3 because there are 5apples and 3 pears

The ratio is 5:3 because there are 5apples and 3 рears

The population of the African country of Madagascar in 2018 is about 26 million. The estimated population of Madagascar is given by the function P(t)=26(1.03)t , where t represents the time in years since 2018 and P(t) represents the population in millions.
part a. In 2020 , the population will be blank million
part b. What is the meaning of P(t)=50 ?


The population 50 years after 2018 is P(t) ,
The population 50 years after 2018 is cap p times t, ,

The population t years after 2018 is 50 million.
The population t years after 2018 is 50 million.

The population 50 years after 2018 is 50 million.
The population 50 years after 2018 is 50, million.

The population t years after 2018 is about 114 million.

Answers

Answer:

The current population of Madagascar is 28,354,778 as of Thursday, June 10, 2021, based on Worldometer elaboration of the latest United Nations data.

Madagascar 2020 population is estimated at 27,691,018 people at mid year according to UN data.

Madagascar population is equivalent to 0.36% of the total world population.

Madagascar ranks number 51 in the list of countries (and dependencies) by population.

The population density in Madagascar is 48 per Km2 (123 people per mi2).

The total land area is 581,795 Km2 (224,632 sq. miles)

38.5 % of the population is urban (10,670,252 people in 2020)

The median age in Madagascar is 19.6 years.

Step-by-step explanation: i dont know man

Pls help this is due soon!!!!

Answers

Biology Boys = 25
Chemistry Girls = 26
Chemistry Boys = 31
Physics Boys = 47
Physics Total = 76
Total Boys = 103

ASAP!!!!!
Ms. Rodrigo’s class plays soccer during gym every 12 days. Mr. Tate’s class plays soccer every 8 days. If both classes are playing soccer today, how many days will it be before they both are playing soccer on the same day again?

Answers

It will be 24 days before the both play soccer on the same day again.

Write as an equation: When -2 is subtracted from w, the result is 49

Answers

Step-by-step explanation:

w-(-2)=49

or, w+2=49

or, w= 47

which is the required equation.

Answer:

[tex]{ \bf{w - ( - 2) = 49}} \\ \\ { \boxed{ \tt{w + 2 = 49}}}[/tex]

Need help with this problem

Answers

Answer:

B =43.7

Step-by-step explanation:

take angle b as reference angle

using sin rule

sin B =opposite/hypotenuse

sin B =9/13

sin B =0.69

[tex]B =sin^{-1} (0.69)[/tex]

B =43.63

B =43.7

Tommy and Erin are building a skateboard ramp. They want the ramp to be 3 feet tall and 5 feet long. Tommy thinks that they can use a piece of plywood that is 4 feet long to cover the top of the frame.
A)Why is Tommy's reasoning incorrect? Explain.
B) How long does the piece of plywood have to be to cover the top of the frame of the skateboard ramp? Show your work.
C) Erin’s parents bought a 10 foot piece of plywood for her and tommy to use to cover the top of the frame. Draw and label a ramp they could create. Justify your work using the Pythagorean Theorem.
Please answer all parts I really need the answer to these questions.

Answers

Answer:

The answer is below

Step-by-step explanation:

The ramp has the form of a triangle. The height of the ramp is the vertical side of a triangle, the top of the frame is the hypotenuse while the length of the ramp is the base side of the triangle.

Let the hypotenuse be b, length be a and height be c Hence:

b² = a² + c²

b² = 3² + 5²

b² = 9 + 25

b² = 34

b = 5.83 feet

B) The plywood needs to be 5.83 feet long

C) Since the top of the ramp is 10 feet, let us assume the height of the ramp to be 6 feet, hence, the length of the ramp a is:

10² = a² + 6²

100 = a² + 36

a² = 64

a = 8 feet

Answer:

C

Step-by-step explanation:

Algebra evaluate each expression if a = -3 ,b= - 4 , and c = 5

what is 1. 5bc

Answers

-30 is the answer to your question

Find the slant heigh of the pyramid

Answers

Answer:

16.0"

Step-by-step explanation:

ASSUME the pyramid is a square right pyramid.

height = 15"

base side length = 11"

(Following edited/corrected thanks to cwrw238)

Slant height

= sqrt(5.5²+15²)   using Pythagoras theorem

= sqrt(255.25)

=  15.98"

Answer:

Slant height = 15.98 in to nearest hundredth.

Step-by-step explanation:

Use Pythagoras theorem.

The triangle we want  has a height of 15 , base of 1/2*11 = 5.5 and we need the length of the hypotenuse.

h^2 = 5.5^2 + 15^2 = 255.25

h = 15.976.



Please help I will award brainless to whoever helps please it’s urgent

Answers

Answer:

128 sq units :)

Step-by-step explanation:

hope this helps! have a great day :)

which one is greater 27.532 or 27.523

Answers

Answer: 27.532

Step-by-step explanation:

0.53>0.52

Answer:

27.532

27.532 is greater because .532 is greater than 523

A particular medicine decays at a rate of 16% every 4 hours. If a person takes a 25 mg dose, answer
the following questions.
a. Write a function that represents the amount of medicine after h hours.
b. How much is left after 4 hours? 8 hours?

Answers

Answer:

25 x 0.84 ^ h = X

After 4 hours there will be 12.45 milligrams of the medicine, and after 8 hours there will be 6.20 milligrams of it.

Step-by-step explanation:

Given that a particular medicine decays at a rate of 16% every 4 hours, if a person takes a 25 mg dose, to write a function that represents the amount of medicine after h hours, and determine how much is left after 4 hours and 8 hours, the following calculations must be performed:

100 - 16 = 84

25 x 0.84 ^ h = X

25 x 0.84 ^ 4 = X

25 x 0.4978 = X

12.45 = X

25 x 0.84 ^ 8 = X

25 x 0.2478 = X

6.20 = X

Therefore, after 4 hours there will be 12.45 milligrams of the medicine, and after 8 hours there will be 6.20 milligrams of it.

Measurement conversions please help

Answers

42.6 I believe because you would divide 128 by 3.

circle with a center of (4,6) and a us of 10 units. which equation represents the circle

Answers

Answer: (x-4)²+(y-6)²=100

Explanation: Write the equation in standard form. Substitute h for x and k for y in the form of (h,k). Since the radius equals 10, square the radius and you should get 100. Put everything back together and you should get, (x-4)²+(y-6)²=100.

(x-4)²+(y-6)² =100 is the equation of the circle with a center of (4,6) and a radius of 10 units

What is Circle?

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

The standard equation of a circle is (x-h)²+(y-k)² =r²

In the equation (h, k) represents the center of the circle.

r is the radius of the circle.

From given that circle with a center of (4,6) and a radius of 10 units.

We need to find the equation of the circle.

Substitute h=4, k=6 and r=10

We get  (x-4)²+(y-6)² =10²

Hence,   (x-4)²+(y-6)² =100 is the equation of the circle with a center of (4,6) and a radius of 10 units.

To learn more on Circles click:

https://brainly.com/question/11833983

#SPJ7

You want to invest in companies belonging to Gispa Group of
1
Companies, Inc. so you did some research and found out that companies belonging to this group has an average gain of
0.8
percent and standard deviation of
0.7
percent. Given that a positive percent (gain) means profit and a negative percent means a loss. If you choose
20
companies, what is the probability that the companies are gaining more than
1
percent?

Answers

Answer:

0.1007

Step-by-step explanation:

Given :

Average gain, μ = 0.8

Standard deviation, σ = 0.7

Number of companies, n = 20

Obtaining the standardized value ;

Zscore = (x - mean) / (σ/√n)

Zscore = (1 - 0.8) / (0.7/√20)

Zscore = (0.2 / 0.1565247)

Z = 1.27775

Using the Z probability calculator :

P(Z > 1.27775) = 0.10067

P(Z > 1.27775) = 0.1007 ( Z probability calculator)

calculate (2.8+1.36)÷(4-2.7)​

Answers

The answer is 3.2

Hope this answer is right!

A ball is dropped from a height of 5m. After each bounce it rises to 35% of its previous height. After how many bounces does the ball reach a Height of less than 50cm?

Answers

Answer:

After the third bounce the ball reaches a height of less than 50cm.

Step-by-step explanation:

Geometric sequence:

In a geometric sequence, the quotient between consecutive terms is always the same, and it's called common ratio. The nth term of a geometric sequence is given by:

[tex]A_n = A_0(r)^{n}[/tex]

In which [tex]A_0[/tex] is the first term and r is the common ratio.

A ball is dropped from a height of 5m.

This means that [tex]A_0 = 5[/tex]

After each bounce it rises to 35% of its previous height.

This means that [tex]r = 0.35[/tex]

Thus

[tex]A_n = A_0(r)^{n}[/tex]

[tex]A_n = 5(0.35)^{n}[/tex]

After how many bounces does the ball reach a Height of less than 50cm?

50cm = 0.5m. This is n for which [tex]A_n = 0.5[/tex]. Thus

[tex]A_n = 5(0.35)^{n}[/tex]

[tex]0.5 = 5(0.35)^{n}[/tex]

[tex](0.35)^n = \frac{0.5}{5}[/tex]

[tex](0.35)^n = 0.1[/tex]

[tex]\log{(0.35)^n} = \log{0.1}[/tex]

[tex]n\log{0.35} = \log{0.1}[/tex]

[tex]n = \frac{\log{0.1}}{\log{0.35}}[/tex]

[tex]n = 2.19[/tex]

Rounding up:

After the third bounce the ball reaches a height of less than 50cm.

Please help quickly :D

Answers

Hope this help!!!

Have a nice day!!!

(PLEASE HELP + POINTS)

Use the drawing tool(s) to form the correct answer on the provided number line.
Solve the equation, and plot the solution(s) on the provided number line.

(Picture included)

Answers

Answer:

x = 4

Step-by-step explanation:

2/3x + 1/6 = 4/3x

Easiest way to solve is by multiplying the entire equation by 6x.

6x (2/3x + 1/6 = 4/3x)

4 + x = 8

subtract 4 rom both sides

x=4

Other Questions
What is TRUE about healthy grieving?Cutting yourself off from friends and family will allow you to grieve more efficiently.It is not normal to return to regular hobbies and other activities after the death of a loved one.Having a time frame and self-care strategies can make the grief process more manageable.Venting your feelings at any time is an acceptable response to grief. using the image,find angle x and y what are human rights Helpppp quiccckkkkkm in which group and period of the periodic table is element y placed? The first few steps in solving the quadratic equation 8x2 + 80x = 5 by completing the square are shown.8x2 + 80x = 58(x2 + 10x) = 58(x2 + 10x + 25) = 5 + ______Which number is missing in the last step?2002525200 Solve 7x+6 In Life on the Mississippi, by Mark Twain, boats were usually referred to using the pronoun ___________. they she it he please help ill give brainliest :)) A coach travels from the station to the beach, a distance of 430 km away in 7 hrs. The coach is only allowed to travel at a maximum speed of 95 km/h. Did the coach break the speed limit? Your company is considering offering 600 employees the opportunity to transfer to its new headquarters in Ottawa and, as personnel manager, you decide that it would be fairest if the transfer offers are decided by means of a lottery. Assuming that your company currently employs 200 managers, 300 factory workers, and 900 miscellaneous staff, find the following probabilities, leaving the answers as formulas.(a) All the managers will be offered the opportunity.C(___,___)C(___,___)(b) You will be offered the opportunity.C(___,___)C(___,___) Pliss you can help me pliss A light bulb is connected to two batteries. Each battery has 1.5V. If a student measures the current flowing through the light bulb to be 2 A, What is the resistance of the light bulb? My car payment is 312.67. My water bill is 12percent of the car payment. How much is the water bill The mass of a dime is about 0.002268 kg. Which is the best estimate of the mass?A 2 x 10-3B 2 x 10-2C 2 x 102D 2 x 103 Determine whether the following statement is always, sometimes, or never true.If two pairs of corresponding sides of two right triangles are congruent, then the triangles arecongruent. caracteristicas del pasado Our people finally sorted it out a couple weeks later. Thechemical, which, by the way, cut down the number ofmosquitoes exponentially, had the unfortunate side effectof killing off this little wasp I've got the scientific namefor it somewhere in my report here, if you're interestedthat preyed on a type of caterpillar that in turn ate palm leaves. Well, with the wasps gone, the caterpillars hatched out with nothing to keep them in check and chewed the roofs to pieces, and that was unfortunate, we admit it, and we had a real cost overrun on replacing those roofs with tin ... but the people were happier, I think, in the long run, because let's face it, no matter how tightly you weave those palm leaves, they're just not going to keep the water out like tin. Of course, nothing's perfect, and we had a lot of complaints about the rain drumming on the panels, people unable to sleep and what-have-you. ...Which passage from the excerpt shows that the narrator is using logos?A. I've got the scientific name for it somewhere in my report here, if you're interestedB. The chemical, which, by the way, cut down the number ofmosquitoes exponentially, had the unfortunate side effect of killing off this little waspC. that was unfortunate, we admit it, and we had a real cost overrun on replacing those roofs with tinD. the people were happier, I think, in the long run, because let's face it, no matter how tightly you weave those palm leaves, they're just not going to keep the water out like tin javascript Write a program to calculate the credit card balance after one year if a person only pays the minimum monthly payment required by the credit card company each month. three possible factors that could have led to the problem of waste dumping PLEASE HELP ASAP PLLSSS!!!!Patrick wants to buy a new computer. He already has $275 saved and plans to save $125 each month. The price of the computer is currently $1,850, but Patrick expects the price to drop by $100 each month. Patrick wants to determine the number of months he will need to save.a) If x represents the number of months, then write an equation to represent A, the total amount Patrick saves.b)If x represents the number of months, then write an equation to represent C, the cost of the computer.c)Use your equations from part a and part b to determine how many months he will need to save before he can buy the computer. Show your work or explain how you got your answer.