Rafael drops a ball from the third-story window. This equation represents the approximate height, h, in meters, of the ball above the ground after it falls for t seconds.

h = -5t² + 45

When is the ball at ground level?​

Answers

Answer 1

Answer:

3 seconds is when it will be at ground level.

Step-by-step explanation:

I'll explain it tmr, just reply if you want me to explain.


Related Questions

As a manager in a flooring store, you respond to a customer’s inquiry regarding available sizes of square tiles. The customer needs square tiles that measure 1.5 feet on each side. Your store sells square tiles with lengths measured in centimeters. What is the side length, in centimeters, of a square tile that measures 1.5 feet on each side, rounded to the nearest hundredth?

Answers

Answer:

Step-by-step explanation:

1.5ft(12in/ft)(2.54cm/in)=45.72cm

GEOMETRY. Need help i will give brainliest

Answers

Answer:

x = 10

Step-by-step explanation:

If two tangent segments are drawn to a circle from an external point, then those segments are congruent.

x+11 = 2x+ 1

x = 10

Answer:

x=10

Step-by-step explanation:

x+11=2x+1

x+10=2x

10=2x-x

x=10

Brillianst!!!!!

Caroline delivers flowers and earns $1.25 for each rose and $0.75 for each daisy. What is her total pay for a week in which she sold 288 roses and 432 daisies?

Answers

Answer:

She will be paid $684

Solve by graphing

|1x - 1| = |2x - 5|

Answers

Answer:

x=4 or x=2

Step-by-step explanation:

A book is 210 pages long; 140 of the pages have images on them. If Patrick opens the book to a random page, what is the probability that the page will have an image on it?

Answers

Answer: as a ratio it’s 140:210 and as a simplified fraction it’s 2/3. But not simplified it’s still 140/210

Step-by-step explanation:

please help I dont understand ​

Answers

The slope is 3, count from one point to o other. If you go from -2,0 up to -1,3 you go up 3 and over one so the slope is 3

Answer:

Step-by-step explanation:

Remark

All you need is 2 points that you can rely on as being accurate.

(2,0) should certainly be one of them. I would pick (-1,3) as the other but it is less certain.

Givens

y2 =3

y1 = 0

x2 = -1

x1 = - 2

Formula

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

Solution

m = (3 - 0) / (-1 - - 2)

m = (3 )/ (-1 + 2)

m = 3/1

m = 3

the lengths of the sides of a triangle are 2n, n^2 and n+5 for what value of n do these lengths not make a triangle ?

Answers

The length , explain that againnnnnnn

Answer:

Step-by-step explanation:

Try n = 2

2n = 4

n^2 = 4

n+5 = 7   That works. It will make a triangle since the 2 smallest numbers are bigger than 7

Try n = 3

2n = 6

n^2 = 9

n + 5 = 8     That works. Same reason as above.

n = 4

2n = 8

n^2 = 16

n + 5 = 9    That works. Same reason.

n = 5

2n = 10

n^2 = 25

n+5 = 10   Aha! That doesn't work. the two smaller numbers only = 20.

There are likely many numbers that don't work. I'll try one more

n = 6

2n = 12

n + 5 = 11

n^2 = 36   This won't work either. Same reason as n = 5.

A pollster surveys 80 people to determine whether they will vote for Seth Gleason for mayor. 42 out of 80 say yes. What is the experimental probability that the next person surveyed will say he or she plans to vote for Seth Gleason?

Answers

Answer:

42 out of 80

Step-by-step explanation:

Given function:

surveys 80 people42 votedto find the experimental probability that the next person surveyed say yes or no..

Thinks:

42 out of 80 means 42:80 in ratio formif 42:80  that they’ll vote for Seth Gleason then this means that the next person have 42:80 chance to vote for Seth Gleaso...

Forms:

0.525 42/80.. simplify form=21/40. 52.5%

Therefore, the percentage the next person would vote for Seth Gleason is a percentage of 52.5% and also have a ratio of 42:80.

Apply the Distributive Property to Simplify the Expression
3(36)

Answers

Answer:

108

Step-by-step explanation:

3(36)=3(30+6)=90+18=108

Marty and Adam want to share 8/10 feet of rope, equally. What amount of rope should each person get?

Answers

Answer: 2/5 feet

Step-by-step explanation:

From the question, we are informed that Marty and Adam want to share 8/10 feet of rope, equally.

The amount of rope that each person would get would be calculated by dividing 8/10 by 2. This will be:

= 8/10 ÷ 2

= 8/10 × 1/2

= 8/20

= 2/5

Therefore, each person gets 2/5 feet of rope.

Skylar invested $3,100 in an account paying an interest rate of 3.3% compounded quarterly. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $4,720

Answers

Answer:

13

Step-by-step explanation:

​  

Charlie drove 360 miles in 5 hours.
At the same rate, how many miles would he drive in 8 hours?

Answers

Step-by-step explanation:

5 360

8 x

5x=360•8

x=576miles

BEST ANSWER GETS BRAINLIEST, THANKS ON ANSWER, AND THANKS ON YOUR PROFILE!

Answers

shouldn’t it be the figures are similar? theyre the same size, along with the same measure of angles.

Step-by-step explanation:

Figure ABCD is similar to figure A'B'C'D'. is the correct awnser.

Figure ABCD is similar to figure A'B'C'D'. is the correct awnser.this is became ABCD is reflected over the y-axis so it is simular too A'B'C'D.

A is incorrect because the size of the shape doesn't change when getting reflected.

B and D is incorrect because just by looking at the shape D is not equal to A' or B'

Hope this helps!!

Factor the expression using the GCF. 58+28=

Answers

Answer:

2(29+14)

Step-by-step explanation:

Given function:

To find the GCF of 58+28..

Find the GCF of 58+28:

[tex]58=29[/tex]·[tex]2[/tex] [tex]28=14[/tex]·[tex]2[/tex]

Rewrite:

[tex]2(29+14)[/tex]

Therefore, using GCF, the new expression would be 2(29+14)..

The expression 58 + 28 can be factorized as 2 (29 + 14).

What is GCF?

GCF which is the abbreviated form for Greatest Common Factor of two numbers, as the name implies, is the greatest common factor of both the numbers.

GCF of two numbers can be found using prime factorization.

Given the expression 58 + 28.

To find the GCF of two numbers, list the prime factors of these two numbers.

58 = 2 × 29

28 = 2 × 14 = 2 × 2 × 7

The only common factor is 2.

So the greatest common factor is 2.

58 + 28 = (2 × 29) + (2 × 14)

Taking the common factor of 2 outside the brackets,

58 + 28 = 2 (29 + 14)

Hence the expression 58 + 28 can be factorized as 2 (29 + 14) using the greatest common factor.

To learn more about GCF, click on the link given :

https://brainly.com/question/11444998

#SPJ2

For what value of q is the equation -13(q + 4) = 7q + 16

Answers

Answer:

Q = -3.4

Step-by-step explanation:

Our original equation is:       -13(q+4)=7q+16

if we simplify this, we get:     -13q-52=7q+16

Subtract 16 from both sides: -13q-68=7q

Add 13q to both sides to get:      -68=20q

divide the equation to get this:  -3.4=q

What is the perimeter of the parallelogram? 12 cm 6 cm 5 cm 7 cm

Answers

We dont know this
You need to have only 2
For ex: 4 cm and 7 cm
So, P=2• (a•b)
2•(4•7)
P=56cm

Answer:

12

Step-by-step explanation:

stats. can someone help?

Answers

Answer:

you should try picto math it very helpful!

Step-by-step explanation:

A package of 4 pair of insulated socks cost $32.76. What is the unit price of the pair of socks

Answers

8.19$ sorry if I got it wrong

Answer:

The answer is 8.19, You have to divide 32.76 by 4(Ps. Sorry I'm not good at explaining)

-4(5k - 7) + 2k = -2(9k + 5)

Answers

1. -20k+28+2k=-18k-10
2. -18k+28=-18k-10
3. 28=-10
No solution
-20k+28+2k=-18k-10
-18k+28=-18k-10
28=-10
No solution

HELP ME PLASE IM BEGGING YOU

Answers

Answer:

5x+4

Step-by-step explanation:

(7x+1)-(2x-3)

Remove parentheses

=7x+1-(2x-3)

=7x+1-2x+3

Simplify

7x+1-2x+3=5x+4

Look at the picture and thanks

Answers

B is the correct answer

Hey help a tom outtttttttttttttttttttttt

Answers

Answer: 3X2+4x=-2

Step-by-step explanation:because thats the mathematic equation for a average square

Can u pls help me with this question

Answers

Answer:

20.5 ounces

Step-by-step explanation:

11.5+2.25s=?

11.5+2.25(4)=

a square has a side length of (x-7) a what is the area?

Answers

Answer:

4x+28

Step-by-step explanation:

answer this math question. ill give brainliest.

Answers

Answer: He OLD! XD

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What is the simplified algebraic expression?
4x – 5
–8x – 5
–8x + 10
–8x – 10

Answers

The simplified version is -8x+10

convert 5000 mm = ____ cm​

Answers

Answer:

it's 500 cm

HOPE THIS HELPS

Step-by-step explanation:

Answer:

500 cm

Step-by-step explanation:

i did the math

1. El perímetro de la figura que se muestra es:

a. 10x2+20y+8
b. 19x2+16y+16
c. 19x2+20y+16
d. 19x2+20y+8

Answers

Answer:

I think is C 19x2+20y+16

A store bought a glass measuring cup at a cost of $1.50 and marked it up 150%. Later on, the store marked it down 80%. What was the discount price?

Answers

Answer:

45 cents

Step-by-step explanation:

two complentary angles are drawn such that one angle is 10 more than seven times the other angle find the measure of each angle

Answers

Answer:

10° and 80°

Step-by-step explanation:

Complementary angles sum to 90°

let one angle be x then the other angle is 7x + 10 , so

x + 7x + 10 = 90

8x + 10 = 90 ( subtract 10 from both sides )

8x = 80 ( divide both sides by 8 )

x = 10

and 7x + 10 = 7(10) + 10 = 70 + 10 = 80

Thus the 2 angles are 10° and 80°

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