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disa [49]
3 years ago
13

(Plz no links) Help needed a lot!!!!

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
5 0
Their elevation changed -150ft. Per minute
Their change is negative
n200080 [17]3 years ago
3 0
The answer is -150ft your well
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For this graph, mark the statements that are true.
amid [387]
The domain is the set of all real numbers.
The range is the set of all real numbers.
6 0
3 years ago
I need help on number 17 and 18 on how to find the area of the figure
JulsSmile [24]
17. Area of triangle: 1/2bh
1/2 * 12 * 15
1/2 * 180
=90 cm^2

18. Area of trapezoid: 1/2 h (b1 + b2)
1/2 * 8 ( 12 + 15.4)
4 * 27.4
= 109.6 cm^2
3 0
3 years ago
Read 2 more answers
The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The d
jek_recluse [69]

Answer:

50%

Step-by-step explanation:

68-95-99.7 rule

68% of all values lie within the 1 standard deviation from mean (\mu-\sigma,\mu+\sigma)

95% of all values lie within the 1 standard deviation from mean  (\mu-1\sigma,\mu+1\sigma)

99.7% of all values lie within the 1 standard deviation from mean  (\mu-3\sigma,\mu+3\sigma)

The distribution of the number of daily requests is bell-shaped and has a mean of 55 and a standard deviation of 4.

\mu = 55\\\sigma = 4

68% of all values lie within the 1 standard deviation from mean (\mu-\sigma,\mu+\sigma) = (55-4,55+4)= (51,59)

95% of all values lie within the 2 standard deviation from mean  (\mu-1\sigma,\mu+1\sigma)= (55-2(4),55+2(4))= (47,63)

99.7% of all values lie within the 3 standard deviation from mean  (\mu-3\sigma,\mu+3\sigma)= (55-3(4),55+3(4))= (43,67)

Refer the attached figure

P(43<x<55)=2.5%+13.5%+34%=50%

Hence The approximate percentage of light bulb replacement requests numbering between 43 and 55 is 50%

4 0
3 years ago
14. Janie Christopher lent $6000 to a friend for 90 days at 12%. After 30 days, she sold the note to a third party for $6000. Wh
Elenna [48]

Can you do plsssssssss

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3 0
2 years ago
Tim is clearing brush from a large piece of land. Tim clears 1/4 of an acre in 2 days. How
kodGreya [7K]

Answer:

8 days

Step-by-step explanation:

\frac{1}{4}  \times 4 =1

2 \times 4 = 8

It takes Time 8 days to clear 1 acre

4 0
3 years ago
Read 2 more answers
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