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velikii [3]
2 years ago
15

Two minutes after a diver enters the water,he descended 52 feet. After 5 minutes, he ascends 130 feet. At what rate is the scuba

diver descending?
Mathematics
2 answers:
poizon [28]2 years ago
8 0
He is descending 26 feet per minute
Mrac [35]2 years ago
3 0
I believe he is descending at 26 ft per a minute.
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I need help!<br><br>And if you can explain that would be good!
zysi [14]

Answer:

meema, papa, and then auntie jo

Step-by-step explanation:

you need to find the slope of each of them and then determine which one is the fastest and which one is the slowest.

meema: 48-24/4-2 = 4/2 = 2

papa: 40-24/5-3 = 16/2 = 8

auntie jo: 45-18/5-2 = 27/3 = 9

im in algebra two so you can trust my answer. happy holidays and stay safe!

7 0
2 years ago
What is the measure of
Helen [10]

Answer:

A = 37 degrees ; B = 82 degrees

Step-by-step explanation:

the angle A plus 143 must measure 180 degrees

angle A = 180 - 143 = 37 degrees

the sum of the inner angles of a triangle is 180 degrees

A + B + C = 180

37 + B + 61 = 180

B = 180 - 98 = 82 degrees

7 0
3 years ago
Read 2 more answers
Assume you have such a watch. if a minimum of 18.0% of the original tritium is needed to read the dial in dark places, for how m
laila [671]
Given that the half life of 3H is 12.3 years.

The amount of substance left of a radioactive substance with half life of t_{ \frac{1}{2} } after t years is given by

N(t)=N_0\left(\frac{1}{2} \right)^{ \frac{t}{t_{\frac{1}{2}} }

Therefore, the number of years it will take for 18% of the original tritinum to remain is given by

18 \% = 100 \% \left(\frac{1}{2} \right)^{ \frac{t}{12.3}} \\  \\ \Rightarrow\left(\frac{1}{2} \right)^{ \frac{t}{12.3}} =0.18 \\  \\ \Rightarrow\frac{t}{12.3}\ln\left(\frac{1}{2} \right)=\ln0.18 \\  \\ \Rightarrow\frac{t}{12.3}= \frac{\ln0.18}{\ln\left(\frac{1}{2} \right)} = \frac{-1.715}{-0.6931} =2.474\\ \\ \Rightarrow t=2.474(12.3)=30.4

Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>
5 0
3 years ago
What is the measure of RCD in the figure below?
kompoz [17]

Ray CD cuts angle PCR in half.

PCD = 35 degrees.

So, RCD = PCD or 35 degrees.

8 0
3 years ago
Read 2 more answers
What is the missing part if 2.48&gt;2.4 blank 1&gt;2.463?
bulgar [2K]
2.48 > 2.471 > 2.463 5.723 < 5.724 < 5.725 7.64 < 7.65 < 7.68
8 0
3 years ago
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