A boy throws a baseball across a field. The ball reaches its maximum height, 18 meters, after 1 second. After approximately 2.3 seconds, the ball lands on the ground. The ball’s motion can be modeled using the function f(x) = –10x2 + 20x + 8. What is the height of the ball 1.5 seconds after it is thrown?

11.7 meters
13.8 meters
15.5 meters
17.5 meters

Answers

Answer 1

Answer:

15.5 meters

Step-by-step explanation:


Related Questions

mason made 5 quarts of salsa which of the following can be used to find the number of cups of salsa mason made

Answers

Answer:

I think its 20 cups, it doesn’t have a link for ‘the following’

probably not right I’m dum

HELP ASAP !!!! CAN SOMEONE HELP ME?!?!

Answers

Answer:

a

Step-by-step explanation:

square formula for area is [tex]s^{4}[/tex]

can someone please help me with this i got school tmr

Answers

Here's the solution,

the opposite angles of parallelogram are equal, so, Angle G = Angle E

=》3x + 11 = 5x - 9

=》5x - 3x = 11 + 9

=》2x = 20

=》x = 10

value of x = 10

now, Angle G = 5x - 9

=》(5 × 10) - 9

=》50 - 9

=》41°

Angle G and Angle F are supplementary, so

=》 41° + Angle F = 180°

=》Angle F = 180° - 41°

=》Angle F = 139°




Help me on this one for 10 points

Answers

Answer:

m ACG = 17

x = 24

Step-by-step explanation:

[tex]1)\ m\ ACG = x - 7 = 90 - 73 = 17[/tex]

[tex]2)\ x - 7 = 17 => x = 17 + 7 = 24[/tex]

Answer:

m ACG=17
x=24

Explanation:

Plsssss help meeee
This is so hard

Answers

Answer:

C. 6

May the 4th be with you :)

Answer:

x = 6

4(8-6)=8

4(2)=8

8=8

PLEASE HELP "Given a sample mean of 3.56 and a standard deviation of 0.98, which value falls within the 90% confidence interval for a sample size of 45?"

A.
3.21
B.
3.28
C.
3.83
D.
3.57

Answers

Answer:

D. 3.57

Step-by-step explanation: Edmentum

what is the sum of the probabilities of 2 complementary events
-1
0
1
0.5

Answers

Answer:

1

Step-by-step explanation:

The sum of probability of two complementary events is always equal to 1. This happens because the probability of a complementary event is always determined by deducting the probability of a given event from 1.

Someone please help me thank you

Answers

Answer: Slope = -3/4

slope = rise/run

rise = -3 ... move down 3 units

run = 4 .... move to the right 4 units

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

Work Shown:

m = slope

m = rise/run

m = (change in y)/(change in x)

m = (y2-y1)/(x2-x1)

m = (-17-(-2))/(24-4)

m = (-17+2)/(24-4)

m = -15/20

m = -3/4 is the slope

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

It basically means "move down 3 units, and move to the right 4 units"

So, slope = rise/run = -3/4

rise = -3 = move down 3 units

run = 4 = move to the right 4

You could express the slope as a decimal, and that would be -3/4 = -0.75, but you lose the rise and run values. So I recommend you keep the fraction.

Another problem with decimals is that sometimes we could have approximations that aren't exact. For example, if the slope was 2/3, then that approximates to 0.667 which may cause rounding errors down the line. Though I should point out that decimals do have their advantages in some cases.

(a) An angle measures 29º. What is the measure of its complement?
(b) An angle measures 26°. What is the measure of its supplement?
measure of the complement =
measure of the supplement =

Answers

Answer:

a) 61 b) 151

Step-by-step explanation:

measure of the complement =  29 + x = 90 ; x = 90-29 = 61  

measure of the supplement = 29+x= 180 ; x = 180 - 29 = 151

I hope im right!!

very
The probability of drawing a blue
marble from a bag containing
these marbles is į
If you replace the marble each time,
predict how many times a blue marble
will be chosen out of 50 draws.
[?] times
Enter

Answers

Answer:

25 times

Step-by-step explanation:

From the question:

Number of :

Yellow = 2

Red = 3

Blue = 5

P(blue) = required outcome / Total possible outcomes = 5/ 10 = 1/2

If marble is drawn with replacement :

Number of times a blue marble is drawn from 50 trials :

P(blue marble) * 50

1/2 * 50

= 25 times

A musician plans to perform 4 selections. In how many ways can she arrange the musical selections?
a.
120
c.
24
b.
4
d.
16

Answers

Answer:

The answer is 24 in my opinion

Step-by-step explanation:

1)1 2 3 4

2)1 2 4 3

3)1 3 2 4

4)1 3 4 2

5)1 4 3 2

6)1 4 2 3

Just multiply the 4 with 6 then you get the answer. Hope this is correct.

Answer:

C-24

Step-by-step explanation:

f(x) = x^2 - 16 What are the solutions for x when f of x equals 9?

Answers

Answer:

65

Step-by-step explanation:

Recall the equation for a circle with center ( h , k ) and radius r . At what point in the first quadrant does the line with equation y = 2.5 x + 4 intersect the circle with radius 5 and center (0, 4)?

Answers

Answer: The required point = (1.857,8.643)

Step-by-step explanation:

Equation of circle with center (h,k) and radius r: [tex](x-h)^2+(y-k)^2=r^2[/tex]

Given: Radius = 5 , center = (0,4)

Eqation of circle: [tex](x-0)^2+(y-4)^2=5^2[/tex]

[tex]x^2+(y-4)^2=25[/tex]

[tex]x^2+(2.5x+4-4)^2=25[/tex]  [Using equation y = 2.5 x + 4  ]

[tex]x^2+(2.5x)^2=25[/tex]

[tex]x^2+6.25x^2=25[/tex]

[tex]7.25x^2=25[/tex]

[tex]x^2=3.44827586207[/tex]

[tex]x=1.857[/tex]

[tex]y= 2.5(1.857)+4[/tex]

[tex]=8.6425[/tex]

Hence, the required point = (1.857,8.643)

what is 5 x 5936489208456378

Answers

Answer:

2.9682446e+16

Step-by-step explanation:

Suppose it takes you 14 hour to drive to the movie theater at a rate of 40 mph. Your friend lives closer to the movie theater than you do. Which inequality represents the distance d (in miles) that your friend lives from the movie theater?

A. d < 10

B. d > 10

C. d > 40

D. d < 160

Answers

Answer: (d)

Step-by-step explanation:

Given

It takes 14 hours with 40 mph to reach the theatre

so, the distance traveled is given by

[tex]\Rightarrow d_1=40\times 14\\\Rightarrow d_1=560\ \text{miles}[/tex]

It is given that d is the distance from theatre to friend's house

So, d must be less than [tex]d_1[/tex] i.e.

[tex]d<d_1[/tex]

So, the most appropriate option out of the given is option (d) as d must be less than 560 and it is possible that it maybe less than 160.

Answer:

I believe you meant 1/4 instead of 14... it would be d. If you meant 14 then it would be 560 but there would be no answer choice.

Step-by-step explanation:

Hope it helps! :)

Annika has a circular garden with a radius of 14 feet. One fourth of the garden is planted with yellow roses. what is the area not planted in yellow roses? Use 22/7 for pi.

Answers

Answer:A

Step-by-step explanation:

3/4*22/7*14^2

=3/4*22/7*14*14

=3*11*2*7

=33*2*7

=66*7

=462

Answer:

462

Step-by-step explanation:

The distance between City A and City B is 250 miles. On a certain wall map, this is
represented by a length of 1.5 feet. On the map, how many feet would there be between City C
and City D, two cities that are actually 450 miles apart?

Answers

Answer:

Step-by-step explanation:

1.5 feet                   x

======        =     ======  

250 miles           450

Multiply both sides by 450

1.5 * 450                  x

======        =      

250 miles          

x = 2.7 feet

1 foot = 12 inches

0.7 foot = x

x = 12 * 0.7

x = 8.4 inches

Answer

Either 2.7 feet

or 2 feet 8 inches.

Please help find the solution.

Answers

Answer:

(-3,-5)

Step-by-step explanation:

The solution to the system of equation is where the two graphs intersect.

They intersect at x=-3 y=-5

can any of you help me with this? Like fast?
Branson Creek Middle School has decided to make fitness a key message to their students in the upcoming school year. As a result, they will be participating in a national fitness program. To participate, they must randomly select 15 students in the 5th grade and record their exercise time each day. The data (in minutes) are shown.

85, 80, 76, 78, 82, 88, 80, 80, 110, 85, 85, 82, 83, 88, 76

Describe the distribution of the data.
Determine the median and mean of the data.
Which measure better represents a typical value in the data set? Explain.

Answers

Answer:

data from minimum to maximum :

76 76 78 80 80 80 82 82 83 85 85 85 88 88 110

n= 15 , so the median is X8 = 82 minutes

mean =

(76+76+78+80+80+ 80 +82+ 82+ 83+ 85+ 85+ 85 +88 +88+ 110) / 15 = (1,258)/15 = 83.87 minutes

in order to get higher standard its better use mean as a typical value.

A cyclist travels 6 miles in 45 minutes.
What is his average speed in mph? URGENT URGENT

Answers

Answer:

8 mph

Step-by-step explanation:

45 minutes = 6 miles

1 hour = 8 miles

8 mph the anser tml = thank me later

I need Answer Immediately,pls!!!!!!!

Answers

Answer:

16

Step-by-step explanation:

1618.50-896.50 = 752

752÷47=16

Please help with this it's due in 30 minutes! Please answer AT LEAST half of questions (and explain how you did it if you only answer half or less) you will receive 30 points! I will be reporting people/bots. Or you can EXPLAIN it to me so I can just do it myself thank you! (:

Answers

Answer:

easy cut the hole shape into samller versions of the shapes and than at the end when u have all the numbers add them to the hart

Step-by-step explanation:

Answer

u=69

d=42

f=35

e=35

g=55

h=45

i=45

m=120

k=15

L=75

j=15

p=21

q=55

t=42

o=69

n=21

a=60

b=60

c=60

Step-by-step explanation:

angles in a triangle add up to 180 degrees

the little squares in the corner mean its a right angle (90 degrees)

the two lines like in the op triangle mean the two angles downwards are the same.

angles in a semicircle add up to 180 degrees

3 lines mean all angles are the exact same

(Sorry i forgot 2 angles dont know which ones i forgot but with the info i gave you should be able to work those two out :)

2. Aaron baked two identical cakes. He cut one into 9 equal slices and the other into 19 equal slices.

a) Show that ⅔ of the 9-slice cake gives the asme number of pieces as 1/
3 of the 18 slice cake.

Answers

2/3 x 9 = 6 slices

1/3 x 18 = 6 slices

Hence they give the same number of slices.

Question is in the attachment!!

Answers

Answer:

1.256 cm²

Step-by-step explanation:

2πr

0.4 ÷ 2 = 0.2

2 × 3.14 × 0.2

1.256 cm²

Emma reads at a constant rate. In 6 hours, Emma read a 130-page book and a 90-page book. If h represents the number of hours it takes Emma to read 400 pages, which proportion can be used to solve for h?



A:130/90=6/h C:400/6=200/h
B:130/6=400/h D:220/6=400/h

Answers

Answer:

D

Step-by-step explanation:

i'm doing the activity rn and got it right

Answer:

the answer is d

Step-by-step explanation:

Find the slope of the line that passes through the points
(-5,-6) and (5,10)

Answers

Answer:

8/5

Step-by-step explanation:

To find the slope given two points

m = (y2-y1)/(x2-x1)

    = (10- -6)/(5 - -5)

    = (10+6)(5+5)

   = 16/10

   = 8/5

1.6

Step-by-step explanation:

change in y ÷ change in x

(10--6)=16

(5--5)=10

16÷10=1.6

How many real roots does the equation (x^2+1)(x-2)=0 have?

A: 3
B: 1
C: 0
D: 2

Answers

0 i think is the answer for

3rd time asking for helpppp plz answer number 3

Answers

Answer:

B

Step-by-step explanation:

Walter buys a new truck for $38,000. The truck loses value at a rate of 16% per year. Which equation models the value, V(t), in dollars, of the truck after t years?

A.V(t) = 38000(0.16)t B. V(t) = 38000(0.84)t

C.V(t) = 38000(1.16)t D. V(t) = 38000(-0.84)t

Answers

Answer:

V(t) = 38000(0.84)^t

Step-by-step explanation:

Find f(–3) if f(x) = –3x – 5.
A –10
B –4
C 4
D 12

Answers

This problem missing something to solve ?
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