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
Monica [59]
3 years ago
12

A species of phytoplankton measures about 2 × 10−6 in. A grain of sand measures about 1 × 10−4 in. About how many times longer i

s the grain of sand than the phytoplankton?
Mathematics
1 answer:
taurus [48]3 years ago
5 0

Answer : The grain of sand is 50 times greater than the phytoplankton.

Step-by-step explanation :

As we are given that:

Size of phytoplankton = 2 × 10⁻⁶ in

Size of sand grain = 1 × 10⁻⁴ in

Now we have to determine how many times longer the grain of sand is than the phytoplankton.

We are dividing the sand grain size by the phytoplankton size.

This can be done by equating it as follows:

\frac{\text{Size of sand grain}}{\text{Size of phytoplankton}}=\frac{1\times 10^{-4}in}{2\times 10^{-6}in}

\frac{\text{Size of sand grain}}{\text{Size of phytoplankton}}=50

Therefore, the grain of sand is 50 times greater than the phytoplankton.

You might be interested in
The amount of carbon-14 in an object is given by y = ae– 0.00012t where a is the initial amount of carbon and t is the age in ye
Reptile [31]

Answer:

The approximate age of the bone is approximately 11552 years.

Step-by-step explanation:

The current proportion of carbon-14 with respect to its original amount is defined by following formula:

\frac{y}{a} = e^{-0.00012\cdot t} (1)

Where:

y - Current amount of carbon-14, no unit.

a - Initial amount of carbon-14, no unit.

t - Time, in years.

If we know that \frac{y}{a} = 0.25, then the approximate age of the bone is:

t = -8333.333\cdot \ln \frac{y}{a}

t\approx 11552.453\,yr

The approximate age of the bone is approximately 11552 years.

4 0
3 years ago
Help me please. Very much appreciated​
olya-2409 [2.1K]

Answer:

63mm

Step-by-step explanation:

7mm+8mm=15.

15×15=225

12×12=144(area equals base times height) add 225-144=81(here we are using the Pythagoras theory) so you search for the square root of 81 which is 9 meaning the height is 9. since we say area is 1/2base times height we should take 1/2 ×9×12=63.if the answer doesn't match with the answer in your book please tell me right away so that I can try another method thank you

4 0
3 years ago
Sinx + cosx= 1 then find the value of x
Kobotan [32]
   1√2sinx+1√2cosx=1√2.

This can be written as

cos(x−π4)=cos(π4)

The general solution of this equation ls

x−.π4=2nπ±π4,n=0,±1,±2,...,

So, x=2nπandx=(4n+1)π2,n=0,±1,±2,±3....

 ANSWER: x=2nπandx=(4n+1)π2,n=0,±1,±2,±3....


<span><span /></span>
4 0
3 years ago
I need help I’ll give brainliest
galben [10]

Answer:

what the problem?

Step-by-step explanation:

8 0
3 years ago
What is the value of z in the table?
Genrish500 [490]
The value is 30.9 liters
6 0
3 years ago
Other questions:
  • Thom worked 20 hours last week at the sporting-goods store and earned $155.00. If he continues to earn the same hourly pay, how
    10·2 answers
  • substitute the given values into the given formula and solve for the unknown variable. If necessary, round to one decimal place.
    15·1 answer
  • Melissa used her credit card to buy a $745 refrigerator. She kept the refrigerator for exactly nine years, during which time it
    9·1 answer
  • I really need help ;-;) pls explain this
    13·1 answer
  • What is the width of a rectangular prism with a length of 13 feet, volume of 11232 cubic feet, and height of 36 feet?
    14·1 answer
  • 2. Elle is buying new flooring for her kitchen
    10·1 answer
  • What is <br> A= 3000(1+.036/12)^72<br> Algebra 2 compound interest
    10·1 answer
  • After running 10 miles, David drank 2 bottles of water. His brother was thirstier and drank 2 1/2 times as much as David. What e
    5·2 answers
  • my grade right now is a 79.7 percent this is my final grade but my teacher said I can do extra credit which is 10 points. If I d
    7·2 answers
  • What are the opposites of 9, −2.7, 3.35, and 6
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!