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AlladinOne [14]
2 years ago
11

An airplane begins its descent. After 4 minutes, it is 22,000

Mathematics
2 answers:
Blababa [14]2 years ago
8 0

Answer:

2,000 feet/minute

Step-by-step explanation:

After four minutes the plane has descended to 22,000 feet, and after seven minutes it has descended to 16,000 feet, so the plane lost 6,000 feet of altitude in three minutes. Assuming it lowers at a constant rate of change, the rate of change of the airplane would be \frac{6000}{3} or 2,000 feet/minute.

aev [14]2 years ago
4 0
This is so hard
Good luck
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Identify the height of the rectangle, given that A=(24x2+96x) ft2.
ch4aika [34]

Answer:

Second option, h=(x^{2} + 4x) ft

Step-by-step explanation:

Area = Base x Height

Height = Area ÷ Base

= \frac{24x^{2} +96x}{24}

= \frac{24x^{2} }{24} +\frac{96x}{24} (split fraction for easier simplification)

= x^{2} +4x

3 0
2 years ago
Mrs. B. invested ¢30,000; part at 5%, and part at 8%. The total interest on the
Sonbull [250]

Answer:

Let p be the amount invested at 8%. Then the amount invested at 5% would be 30,000-p. So:

.08p+.05(30,000-p)=2100

.03p+1500=2100

.03p=600

p=20,000

$20,000 was invested at 8%; $10,000 was invested at 5%

Step-by-step explanation:

IF RIGHT PLZ GIVE BRAINLIEST  

THANK U  

HAVE A GREAT DAY AND BE SAFE :)

XD

8 0
2 years ago
Read 2 more answers
Sam and Liam raced each other up and then down the hill. Sam's average speed up the hill was 1 mph, and his average speed down w
Furkat [3]

Answer:

Sam's time was 1 hour and 6.66 minutes (or 1 and 1/9 hours)

Liam's time was was 1 hour

So in conclusion, Liam was faster

Step-by-step explanation:

We got Sam's time by 1/1 because Sam was walking 1 mph and the length to reach the top of the hill is 1 mile. So it would take Sam 1 hour to walk 1 mile. Walking down the hill Sam's speed was 9 mph. So the equation would be 1/9. So you would get 1/9. 1/9 of 60 is 6.66 repeating.

For Liam it is pretty simple. Since he is going up the hill at 2 mph and the length of the bottom of the hill to the top is 1 mile, it would be 30 minutes. Repeat this for the top to the bottom and in total it would be 1 hour.

Hope this helps

3 0
2 years ago
I’m pretty sure I’m wrong PLSSSS HELP
koban [17]
Your answer is definitely right good job
3 0
2 years ago
Based on the table, what is Nick's rate?
Murrr4er [49]
21 /3 = 7
35 / 5 = 7
63 / 9 = 7

 his rate is B. 7 yds/sec

5 0
3 years ago
Read 2 more answers
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