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timofeeve [1]
3 years ago
5

If an object is dropped from a height of 144 feet, the function h(t) = -16t2 + 144 gives the height of the object after t second

s. When will the object hit the ground?
Mathematics
2 answers:
ra1l [238]3 years ago
7 0

Answer:

The ball will hit the ground after 3 seconds.

raketka [301]3 years ago
3 0

Answer:

3 seconds is correct.

Step-by-step explanation:

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3y-12x=24 and goes through point (2,-6) . write your answer in y=mx+b
Masteriza [31]

Answer:

y= 4x+8

Step-by-step explanation:

Add 12x to both sides.

3y=24+12x

The equation is in standard form.

3y=12x+24

Divide both sides by 3.

3

3y

​

=

3

12x+24

​

Dividing by 3 undoes the multiplication by 3.

y=

3

12x+24

​

Divide 24+12x by 3.

y=4x+8

6 0
2 years ago
The manufacturing cost of a cell phone was $136. Sellers first marked up the cost by 25 percent. Sales were poor, so sellers dec
Helen [10]
Manufacturing cost = $136
sellers added 25% = $ 136 * 25/100 = $34 
manufacturers cost + 25% = $136 + $34 = $170. 
old selling price = $170

Sellers decreased the markup to 17% (of manufacturing cost): $136 x 17/100  = $23.12
New selling price = $136 + $23.12 = $153.12

both of these answers show: original cost + markup value 


6 0
3 years ago
You're really good at investing and you have $1,500 in your investment account.You make 8.5% interest a year on your investment
Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

To determine how much are you making on your investment, we will apply the simple interest formula. It is expressed as

I = PRT/100

Where

P = principal or amount invested,

R = interest rate

T = time

From the information given,

P = $1,500

T = 1 year

R = 8.5

I =( 1500×8.5×1)/100

I = $127.5

For a year you owe $1,600 on a credit card. You pay 19% interest a year on this credit card debt.

Interest paid = (1600×19×1)/100 = $304

The loss is 304 - 127.5 = - $176.5

6 0
3 years ago
Can someone plz help me solved this problem I need help plz help me! Will mark you as brainiest!
Cerrena [4.2K]

Answer:

a=-16.00 b=48 c=64

8 0
3 years ago
Can someone explain it to me?
lana66690 [7]

Answer:

a= 20 b= 160 c= 90

Step-by-step explanation:

Based on how 20 is the angle as you can see by the arrow I made the assumption that a is 20 degrees and for c my estimated guess is 90 because if you imagine how many of the 20 degree angle can fit there you get around 80-90 so I made the guess it was option C. I am sorry if this doesn't make sense I tired to understand it I hope you get the answer right. Also enjoy the rest of your day!

3 0
2 years ago
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