1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liberstina [14]
3 years ago
7

Nick has planted 20 flowers. He can plant

Mathematics
1 answer:
Masja [62]3 years ago
4 0

Answer:

5 hours

Step-by-step explanation:

itd be five hours until both nick and rachel are at 55 flowers planted

You might be interested in
What is the rule when finding the sum of numbers from 1-100?
Sphinxa [80]

Answer:

Step-by-step explanation:

Sum of 1 through 100 = 100×(1+100)/2

6 0
3 years ago
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
Plz help i need to turn dis in now
Gnesinka [82]

Answer:

b because if your going to the left that means is negative and we are going up that means it's positive

8 0
3 years ago
Read 2 more answers
Every Wednesday, Carla runs 2.5 miles. How many feet did she run?
Inessa05 [86]

Answer:

13,200 feet

Step-by-step explanation:

There are 5280 feet in a mile, so multiply 5280 by 2.5

5280*2.5=13,200

So, every Wednesday, she runs 13,200 feet

Hope this helps! :)

7 0
3 years ago
What is the derivative of y with respect to x if y = 2/X4
zepelin [54]
You're correct, the answer is C.

Given any function of the form y=x^n, then the derivative of y with respect to x (\frac{dy}{dx}) is written as:
\frac{dy}{dx}=nx^n^-^1

In which n is any constant, this is called the power rule for differentiation.

For this example we have y= \frac{2}{x^4}, first lets get rid of the quotient and write the expression in the form y=x^n:
y= \frac{2}{x^4} =2x^-^4

Now we can directly apply the rule stated at the beginning (in which n=-4):
\frac{dy}{dx}=(2)(-4)x^{-4-1}=-8 x^{-5}= -\frac{8}{x^5}

Note that whenever we differentiate a function, we simply "ignore" the constants (we take them out of the derivative).
6 0
3 years ago
Other questions:
  • On a piece of paper, graph y = 2x - 4. Then determine which answer matches<br> the graph you drew.
    9·1 answer
  • A bicyclist rides 1/5 mile in 1/65 hour. Write this rate as a unit rate
    13·2 answers
  • Two cyclists, 80 miles apart, start riding toward each other at the same time. One cycles 3 times as fast as the other. If they
    9·2 answers
  • What 12 over 13 x 11 please help me
    7·1 answer
  • Box with four balls weighs 5 pounds the same box with 10 balls weighs 11 pounds write an equation in slope intercept form for th
    9·1 answer
  • The polygons are similar. Find the value of x and y.
    7·1 answer
  • I need help with this problem <br><br> Someone explain this to me
    9·1 answer
  • (x + 7)(x + 4) simply
    8·2 answers
  • How do I do this problem?
    8·2 answers
  • PLS HELP marking brainliest<br> 20-27 show ur work
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!