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Leto [7]
2 years ago
6

Please help. Algebra.

Mathematics
1 answer:
Arlecino [84]2 years ago
6 0

Answer:

Step-by-step explanation:

4)  C looks pretty good

5)  D looks great  

:)   ask if you'd like to know how I figured that out

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samantha threw an apple out of a window from the tenth floor of her appartment building. the equation y = -16t^2+120 can be used
ella [17]
Answer:
time taken = 2.74 seconds

Explanation:
We are given that:
y = -16t² + 120 models the situation where:
y is the floor number
t is the time taken for the apple to hit the ground

We are also given that the floor number (y) is 10. Therefore, all we have to do is substitute with y in the above equation and solve for the time t as follows:
y = -16t² + 120
10 = -16t² + 120
120 - 10 = 16t² 
110 = 16t²
t² = 110/16
t² = 6.875
either t = 2.74 seconds ..........> accepted
or t = -2.74 seconds .........> rejected as time cannot be in negative

Hope this helps :)
5 0
3 years ago
The Lions won the 16 games last year. This year the Lions won 20 games. What is the percent of increase in the number of games t
Sever21 [200]
Percent of Change:
Difference/Original
(20-16)/16 = 4/16 = 1/4 = 25% increase
7 0
2 years ago
Read 2 more answers
Andrea has some money. Her brother gives her 7 coins worth 23 cents and now she has 73 cents. If she started with 5 coins, what
Nat2105 [25]

Andrea had 5 coins worth 50 cents ! And , thereafter her brother gave her 7 coins worth 23 cents .

<u>Step-by-step explanation:</u>

Here we have , Andrea has some money. Her brother gives her 7 coins worth 23 cents and now she has 73 cents. If she started with 5 coins, We need to find what coins did Andrea's brother give her and what coins did Andrea start with. Let's find out:

Andrea has some money  , and her brother gives her 7 coins ! worth 23 cents . So , 1 coin worth is :

⇒ \frac{23}{7}

⇒ 3.29cents

Now , she had a total of 73 cents i.e.

⇒ 73 = x+23

⇒ x=50

Initially Andrea had 5 coins worth 50 cents ! And , thereafter her brother gave her 7 coins worth 23 cents .

3 0
3 years ago
Is 12.14 bigger than 12.44
RideAnS [48]
No 12.14 is not bigger than 12.44

12.14 < 12.44
5 0
3 years ago
Read 2 more answers
I need help for this please
shepuryov [24]

Answer:

its blocked

Step-by-step explanation:

8 0
2 years ago
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