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nika2105 [10]
3 years ago
7

Give answer please :)

Mathematics
1 answer:
Over [174]3 years ago
4 0
Since you know that the median is 18 and the two middle values in the set are 17 and B, you know that B must be 19 to make the median 18. Knowing that, you can plug in different values for A that are between 7 and 12 and you would find that only a value of 9 makes the mean 17.

A=9 B=19
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A new car is purchased for \$14,000$14,000 and over time its value depreciates by one half every 4 years. How long, to the neare
swat32

Answer:

11 years

Step-by-step explanation:

14 divide 2=7

7 divide 2=3.5

3.5 divide 2 = 175 subtract 1 extra year to turn to 200. So the answer is 11.

5 0
3 years ago
Read 2 more answers
The function y= -16t^2 +24t represents the height y (in feet) of a tennis ball bouncing straight up from the ground t seconds af
taurus [48]
We want to know the time, <em>t</em>, it takes the ball to reach a height (<em>y</em>) of 0.
0=-16t^2+24t
We can factor out the GCF first.  The largest number that will divide evenly into 16 and 24 is 8.  Also, both terms have a <em>t</em>, so we can factor that out as well:
0=8t(-2t+3) (-16/8 = -2 and 24/8 = 3)
Using the zero product property, we know that either 8t=0 or -2t+3=0.  Solving the first equation, we would divide both sides by 8:
8t/8=0/8
t=0
This is at 0 seconds, before the ball is in the air at all.
Solving the second equation, we start by subtracting 3 from both sides:
-2t+3-3=0-3
-2t=-3
Now we divide both sides by -2
-2t/-2=-3/-2
t=1.5
After 1.5 seconds, the ball will hit the ground again.
5 0
3 years ago
The following two-way table shows the data for the students of two different grades in a school:
xxMikexx [17]

Answer:

blabity-booo

Step-by-step explanation:

i love  you ;)

3 0
3 years ago
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The tortoise and the hare are in a road race to defend the honor of their breed. the tortoise crawls the entire 1000. m distance
jolli1 [7]
<span>The tortoise crawls the whole 1000 m at 0.2 m/s, therefore, you must divide the distance by the rate of travel to find the time it took to complete the race. This gives us a time of 5,000 seconds to crawl the thousand meters. The hare runs the first 200 meters at 2 m/s, meaning that takes 100 seconds. The last 800 meters divided by the speed of 3 m/s gives us a time of 266 seconds. These two numbers must be added to the hare's rest time, converted from 1.3 hours into seconds by multiplying that number by 60 (for minutes in an hour) then 60 again (for seconds in a minute). 1.3 hours is equal to 4680 seconds. Therefore, the whole race took the hare 5,046 seconds, making it slightly slower than the hare, who finished in 5,000 seconds flat.</span>
5 0
3 years ago
A person invested $3,600 in an account growing at a rate allowing the money to
Lelu [443]

Answer:

$14400

Step-by-step explanation:

3600*2=7200 after the first 7 years

7200*2= 14400 after the next 7 years

17-14=3 years left after the first 14 years

4 0
2 years ago
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