Need help with 9th-grade math. Algebra 1

A ball is thrown in the air. The path of the ball is represented by the equation h=-t^2+8t, where t represents time in seconds and h represents the height of the ball in meters.

What is the maximum height of the ball?

How long is the ball in the air for before it hits the ground?

Answers

Answer 1

Answer:

a) 16 meters ; b) 8 seconds

Step-by-step explanation:

The function can be represent with a parabola whose vertex is its maximum point

for answer the first question we have to find the y of the vertex

first of all we have to find the x

Vertex (x) = -b/2a = -8/-2 = 4

if we substitute t with 4, we can find the y

Vertex (y) = -(4^2) + (8*4) =

= -16 + 32 = 16

so the answer is 16 meters

for answer the second question we have to find where the parabola intercepts the x axis, that means solve the associated equation:

-t^2 + 8t = 0

t^2-8t = 0

t(t-8) = 0

t = 0

t = 8

the parabola intercept the x axis in (0,0) and in (8,0)

if we find the distance between this two points we can answer to the question

8-0 = 8 seconds

Answer 2

Answer:

y are you ga

Step-by-step explanation:


Related Questions

Serena has 6 pieces of fabric. Each piece is 5/8 yard long. What is the total length of the fabric

Answers

Answer:

3 3/4 yards

Step-by-step explanation:

6*5/8=3 3/4

PLEASE HELP FOR A TEST IT'S DUE IN 5 MINUTES!

Floyd decides to invest $1,000,000 in a 20-year annuity that earns 4.6% APR compounded monthly. How much money will Floyd be paid each month from this annuity?

Answers

Answer:

$6380.38

Step-by-step explanation:

Floyd will be paid $2,504,880 each month.

What is Compound Interest?

Compound interest is an interest of interest to the principal sum of a loan or deposit. The concept of compound interest is the interest adding back to the principal sum so that interest is earned during the next compounding period.

Given that Floyd invests $1,000,000 in a 20-year annuity that earns 4.6% APR compounded monthly.

A = P(1+r)ⁿ

A = 1,000,000(1+0.046/12)²⁰⁽¹²⁾

A = 2,504,880

Hence Floyd will be paid $2,504,880 each month.

Learn more about compounded monthly click;

https://brainly.com/question/28964504

#SPJ2

if your reading this please help meeee

Answers

Answer:

both angles are 92 degrees

Step-by-step explanation:

88+c=180

c=92

c and b are vertical angles and all vertical angles are equal

PLEASE HELP 30+POINTS, THESE ARE VERY IMPORTANT

Answers

The first one is D (2/16 X 7000)and the second one is B (3/8)

can yall help me smart people

Answers

Answer:

D y>0

Step-by-step explanation:

(0,∞)

A 90-foot rope from the top of a tree house to the ground forms a 45° angle of elevation from the ground. How high is the top of
the tree house? Round your answer to the nearest tenth of a foot.

Answers

Answer:

63.6 feet

Step-by-step explanation:

[tex]sin (45)=\frac{x}{90}[/tex][tex]x=90 sin (45)[/tex][tex]x=45\sqrt{2}[/tex]x = 63.6 feet

PLEASE HELP ME,!!!!!!!!!!! ALL LINKS WILL BE REPORTED!!
Which of the following indicates the subtraction property of equality when solving the equation 86 – 2 (9x + 4) = 12x + 18?
Question options:

A)

2(9x + 4) = 86 – 12x – 18

B)

–2(9x + 4) = 12x + 18 – 86

C)

x = 2

D)

86 – 18x – 8 = 12x + 18

Answers

Answer:

D

Step-by-step explanation:

Answer: D) 86 - 18x - 8 = 12x + 18

can someone please factor this expression 27/x³- 8​

Answers

Answer:

(3x-2) (9xsquare+6x+4)

Answer:

Answer is below

Step-by-step explanation:

[tex]\frac{27}{x^{3} } -8= (\frac{3}{x})^{3} -2^{3} =(\frac{3}{x} -2)(\frac{9}{x^{2}}+\frac{6}{x}+4)[/tex]

(  from formula (a³ – b³) = (a – b)(a² + b² + ab)  )

Sue has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer. Six-sided polygon that includes two isosceles right triangles, one with height and base of 25 feet, the other height and base of 8 feet, and one rectangle measuring 35 feet by 8 feet.

Answers

Answer:

Step-by-step explanation:

700.5

When graphing c=12, would you use an closed circle or opened circle?

Answers

Answer:

closed

Step-by-step explanation:

because its = not -< or>-

When dividing two negative numbers does the order of the numbers matter? And why?

Answers

Answer:

It doesn't matter

Step-by-step explanation:

Negative by negative = positive

pLEASE HELP I'LL GIVE BRAINLIEST

Answers

Hope it helps you......

HELP PLEASE!!!!!!!!!

Answers

Step-by-step explanation:

Hmm I saw this question before its C

Answer:

EF

Step-by-step explanation:

a. Adjacent

b. Linear Pair

c. Complementary

d. Supplementary

e. Vertical

Answers

Adjacent bc I did this yesterday

(4-1) (4-1) (4-1)
please do in algebric exp​

Answers

Answer:

27

Step-by-step explanation:

Correct me if i'm wrong but I read this as (4-1)x(4-1)x(4-1).

Ok so the first step to follow in the order of operation is to do the equations in the paranthesis. 4-1=3.

So it is like dis: 3x3x3.

First 3x3=9, then we do it again but to nine this time. 9x3=27. there u have it

also i cant change my answer or edit it so im sry if this answer is wrong and like- unchangable :/

Solve for x and round yout answer to the nearest tenth.

Answers

Answer:

x=21.35764429=21.4

Step-by-step explanation:

Take SOHCAHTOA

in this problem you're going to use SOH, which is sine= opposite/hypotenuse

sin31=11/x

Multiply by x as a way to isolate it

x(sin31)=11

divide my sin31 to isolate x

x=11/sin31

x=21.35764429

Answer:

The answer is 21.4 when rounded to the nearest tenth!

Step-by-step explanation:

Simplify the following:

Answers

Answer:

A

Step-by-step explanation:

HELP ME WITH THIS PLEASE.
THANKS LOVE U GUYS SO MUCH.

Answers

Answer:

48.

Step-by-step explanation:

1). <C = 74 because it forms a supplemetary angle 180- 106 = 74.

2). We know that the sum of all the angles in a triangle is 180 so we need to add them.

3). 4y + 3y +22 + 74= 180

4). simplify 7y +96=180

5). isolate y so we must subtract 96 from either side.

6). 7y= 84 now divide by 7 on each side. 84/7 = 12.

7). Now we know y = 12 and that angle A is equal to 4y.

8). <A = 4(12) now distrubute

9). <A= 48 degrees

GOD, BLESS!!!

SECTION A:
QUESTION 1
MULTIPLE CHOICE (10 MARKS)
1.1 The way we see, think and feel about ourselves it includes all knowledge we have
about ourselves.
Self esteem
Self-awareness
Self-confidence

Answers

Answer:

Self esteem hope this helps

Solve each equation for points!!

Answers

Step-by-step explanation:

A = -7.

B = -8 x-(-6) is the same as x + 6

C = 13

D = 2

E = -3

Refer to the figure below. Which of the following statements is true?

Answers

Answer:

c

Step-by-step explanation:

jillian buys 4 erasers that each cost $0.35.She makes the number line below to help her find the total cost. What is the total cost of the erasers?

Answers

Answer:

$ 1.40

Step-by-step explanation:

The total cost of the erasers is $1.40. You can come to this conclusion by multiplying 4 times 0.35, or using the number line by counting .35   4 times.

x2–6x + 10 is to be written in the form ( x +a)2+ b Find the values of a and b.

Answers

Answer:

a = -3 and b = 1

Step-by-step explanation:

x² - 6x + 10

→ Half the second term and place it in the bracket

( x - 3 )²

→ Square -3

- ( 3 )² = -9

→ Place this outside the brackets along with plus 10

( x - 3 ) ² - 9 + 10

→ Simplify

( x - 3 ) ² + 1

A triangle has side lengths of 17 inches, 19 inches, and 10 inches. What kind of triangle is it?

Answers

Answer:

Scalene triangle

Step-by-step explanation:

a scalene triangle has 3 uneven sides

PLEASE READ! HELPFUL INFORMATION

Answers

Answer:

u kind of forgot the attachment bestie

did u need to add water or take water away to get from the 4 cup mark to the 1 liter mark

Answers

Answer:

You have to add water.

Step-by-step explanation:

I hope this helps! Have a great rest of your day!

The decision to add water to meet the 4 cup mark of water would be:

Yes, the water must be added.

What is volume?

"Volume" is described as the measure of a space that consists of length along with height and width.

Given that,

1 liter of water contains 1000 ml.

The capacity of a standard cup is 236.59 ml

If we take 4 cups, the total volume equals:

= 4 × 236.59

= 946.36 ml

Therefore, .23 cups or 53.64 ml of water would be required to be added.

Learn more about "Volume" here:

brainly.com/question/1578538

What is the answer to the equation: 8+10

Answers

Answer:

18, the answer to 8+10 is 18, like you learn in 1st grade

Answer:

18 the answer

hope it helps

Find the volume of the cone round your answer to the nearest tenth

Answers

Answer= V=134.04

V=πr2h

need help asapppppppppp​

Answers

Answer:

201.53[tex]m^{2}[/tex]

Step-by-step explanation:

That is a hexagonal pyramid, which means it consists of one hexagon and six triangles.

Let's first find the hexagonal base.

The formula to find the area of a hexagon is [tex]\frac{3\sqrt{3}}{2}a^{2}[/tex], where a is the length of one side of the hexagon. In this question, a = 6m

Solve that to find that the area of the hexagon is 93.53m^2.

Now, on to the triangles. The area of one triangle is the base times the height, then halved. We know that the base of the triangle is 6m as it shares the base with a side of the hexagon, and the question states that the height is also 6m.

6 * 6 = 36

36 / 2 = 18

Hence, the area of one triangle is 18m^2

However, there are six triangles - not just one!

6 * 18 = 108

Adding everything up:

93.53 + 108 = 201.53

The answer is 201.53m^2

Plsssssss help me with thiss.​

Answers

Answer:

Step-by-step explanation:

you need to mutpliy all or your numders 17 x 4 x 8 x 9 = 4896m

Other Questions
Write two examples of scarcity from your life? How is the post-Cold War era a time of stability? Why might Gorbachev have chosen to allow private businesses only on a small scale? Can anybody help me on this question? RedRaider Corp's common stock has a beta of 0.99. If the risk free rate of return is expected to be 3.03% and the market risk premium is 6.93%, what is the cost of equity for RedRaider Corp's common stock Compare LDCs + MDCs in each economic sectora. In other words, in MDCs, which sector are most people employed? b. In LDCs, which economic sector are most people employed?C. Would highly skilled workers most likely be located in LDCs or MDCs? In relation to the video What Most Schools Dont Teach, the authors mention Jane Margolis unease (paragraph 3, sentence 1) primarily to The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.a) What are the mean and standard deviation of the number of universal donors among the 6 people?b) What is the probability that there are exactly three universal donors? . Dinah bought 3 packages of ground beef. The packages weigh 3 3/4 pounds, 1 1/8 pounds, and 2 1/2 pounds. How many pounds of ground beef did Dinah buy Ethan has a piece of string that is 6 meters long. He cuts the string into 3 pieces of equal length. How many centimeters long is each piece of string? how can education address the demands, issue, and challenges brought by globalization in the society? Question 1 of 10 The article "The Aftermath" states that which of the following countries offered to help with the disaster? O A. Haiti B. Canada C. Iraq D. Sri Lanka SUBMIT 180 kg/h of a liquid feed enters an extraction column with 98% paraffin oil and 2% ethyl alcohol at room temperature and pressure. Liquid absorbent is 100% water. Required recovery (extraction) of ethyl alcohol from paraffin oil is 97%. Given that paraffin oil and water are immiscible with each other and the extraction column operates in a counter current fashion. Assume isothermal and isobaric conditions and that only ethyl alcohol is absorbed. Equilibrium relation between mass fractions of ethyl alcohol in water and paraffin oil is given by Xwater = 1.7544 * Xparaffin oil (a) Find minimum amount of water required (Answer 97.5 kg/hr) (b) If you have 1.5 times minimum water amount, how many equilibrium stages are required? (Answer ~ 6) Which of these might be considered benefits of climate change? **Select thetwo correct responses.**A. Increased crop growthB. Fewer business opportunitiesC. Increased ocean acidityD. Increased demand for building constructionE. The spread of invasive species List several reasons why Mecca is an important city to Islam What is 26% of 50?plz help Egan is very skilled at budgeting his money, he is very patient, he understands how to track his own financial records, and he keeps calm and collected during stressful occasions. In which Finance career would Egan be most successful?Business Finance ManagementFinancial Investment PlanningInsurance ServicesBanking and Related Services Which is an example of communities ( in terms of biology ) A. 10 white-tailed deer B. 2 blue jays, 3 northern cardinals, and 1 house sparrow eating seedsC. 1 snapping turtle on a rock; 2 snapping turtles near the edge of a pondD. 6 bullfrogs in a pond; 30 bullfrog tadpoles hatching from eggs 2. What is the maximum heart rate of a newborn baby (age 0)?bpm Showhow you figured it out. Hay mucho plstico en las aguas del planeta Tierra. Es importante no tirar envases de plstico al ocano, los animales pueden comer el plstico.Based on the text, what is true? (1 point)A recycling and cleaning effort is needed.Coral reefs need to be preserved for divers.Overfishing is a problem in many areas.There are several protected fish species.