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3 years ago

Please help the picture is there!

Mathematics

2 answers:

givi [52]3 years ago

7 0

Answer: A

Step-by-step explanation:

r = j + 3

We subtitube r to find j,

r = 9 j = 9 + 3 = 12

r = 15 j = 15 + 3 =18

r = 21 j = 21 + 3 = 24

And we found A as answes.

3241004551 [841]3 years ago

6 0

Answer:

Step-by-step explanation:

r = j + 3 ⇒ j = r - 3

<u>Table C is the correct one</u>

r = 9 ⇒ j = 6
r = 15 ⇒ j = 12
r = 21 ⇒ j = 18

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you run 10 miles in 1 hour and 15 mintues keeping the same pance how long would it take to run 15miles

Montano1993 [528]

Answer:

1 hour and 30 minutes

Step-by-step explanation:

because it took an hour for 10 mile so add another five miles and it would take 30 minutes

4 0

3 years ago

Read 2 more answers

Situation:A researcher in North America discoversa fossile that contains 65% of its originalamount of C-14..-ktN=NoeNo inital am

zheka24 [161]

SOLUTION

We have been given the equation of the decay as

$\begin{gathered} N=N_0e^{-kt} \\ where\text{ } \\ N_0=initial\text{ amount of C-14 at time t} \\ N=amount\text{ of C-14 at time t = 65\% of N}_0=0.65N_0 \\ k=0.0001 \\ t=time\text{ in years = ?} \end{gathered}$

So we are looking for the time

Plugging the values into the equation, we have

$\begin{gathered} N=N_0e^{-kt} \\ 0.65N_0=N_0e^{-0.0001t} \\ e^{-0.0001t}=\frac{0.65N_0}{N_0} \\ e^{-0.0001t}=0.65 \end{gathered}$

Taking Ln of both sides, we have

$\begin{gathered} ln(e^{-0.000t})=ln(0.65) \\ -0.0001t=ln(0.65) \\ t=\frac{ln(0.65)}{-0.0001} \\ t=4307.82916 \end{gathered}$

Hence the answer is 4308 to the nearest year

8 0

1 year ago

I NEED HELP ASAP!!!!!!!

dusya [7]

Answer:

9/25 = 36%

Step-by-step explanation:

First add up all of the students (150)

Then divide 54 by 150, 0.36

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3 0

3 years ago

Find slope of -2,3 and 4,-5

bulgar [2K]

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3 years ago

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kiruha [24]

Answer: First number 3 Second 18

Step-by-step explanation:

3 0

3 years ago