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
nexus9112 [7]
3 years ago
14

What is 6.84 x 10-7 written as a decimal number?

Mathematics
1 answer:
ASHA 777 [7]3 years ago
5 0

Answer:

Step-by-step explanation:

6.84 x 10^-7 as a decimal number is

0.000000684

You might be interested in
At the beginning of the month, Lily has $4,578. By the end of the month, she only has $947 left over. How much money did she spe
alisha [4.7K]
3631 because 4578 - 947 = 3631
5 0
3 years ago
Read 2 more answers
Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.65
erma4kov [3.2K]

Answer:

Probability that the sample average is at most 3.00 = 0.98030

Probability that the sample average is between 2.65 and 3.00 = 0.4803

Step-by-step explanation:

We are given that the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.65 and standard deviation 0.85.

Also, a random sample of 25 specimens is selected.

Let X bar = Sample average sediment density

The z score probability distribution for sample average is given by;

               Z = \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \mu = population mean = 2.65

           \sigma  = standard deviation = 0.85

            n = sample size = 25

(a) Probability that the sample average sediment density is at most 3.00 is given by = P( X bar <= 3.00)

    P(X bar <= 3) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } <= \frac{3-2.65}{\frac{0.85}{\sqrt{25} } } ) = P(Z <= 2.06) = 0.98030

(b) Probability that sample average sediment density is between 2.65 and 3.00 is given by = P(2.65 < X bar < 3.00) = P(X bar < 3) - P(X bar <= 2.65)

P(X bar < 3) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } < \frac{3-2.65}{\frac{0.85}{\sqrt{25} } } ) = P(Z < 2.06) = 0.98030

 P(X bar <= 2.65) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } <= \frac{2.65-2.65}{\frac{0.85}{\sqrt{25} } } ) = P(Z <= 0) = 0.5

Therefore, P(2.65 < X bar < 3)  = 0.98030 - 0.5 = 0.4803 .

                                                                             

8 0
3 years ago
I=$310 P=$1,000 t=5 years
PtichkaEL [24]
I = P x r x t
r = I/P x t

r = 310/1000 x 5
r = 0.62
r = 0.62 x 100
r = 62%
4 0
3 years ago
Helppp please im confused a bit
fredd [130]

So for this one, all you have to do is plot the points it's giving you :)

Then you connect the lines and you get a shape from A-b-c-d

4 0
3 years ago
Which expression is NOT equivalent to the other three? A) −9 − 7n + 16n B) 9(n − 9) Eliminate C) n − 9 + 8n D) 9n − 9
yuradex [85]

Answer:

The expression is not equivalent to other three is 9(n-9) .

Option (B) is correct .

Step-by-step explanation:

Take first expression

= -9 -7n + 16n

= 9n-9

Take second expression

= 9(n-9)

= 9 × n - 9 × 9

= 9n - 81

Take third expression

= n-9+8n

= 9n-9

Take fourth expression

= 9n-9

Therefore expression is not equivalent to other three is 9(n-9) .

Option (B) is correct .

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the length of  if AB = 8 and CB = 4
    10·1 answer
  • 7^x^2=9^x <br>how do I solve this using logs
    11·1 answer
  • What is the value of the expression? −26−(6)2 Enter your answer in the box.
    15·2 answers
  • Converting with Decimals, Percent, and Fractions.<br><br> Please help me ASAP!
    6·1 answer
  • McKenzie has a bag contains six red marbles four blue marbles and 14 yellow marbles if she chooses one marble from the bag what
    13·2 answers
  • Xin graphs the equation y =4x - 6.
    9·1 answer
  • One letter is randomly selected from the word MATH, and a second letter is randomly selected from the word JOKES. What is the pr
    12·1 answer
  • What is the area of this regular hexagon that has been divided into six congruent triangles?
    8·2 answers
  • Make u the subject of formula in <br>M=m(v-u).u​
    6·1 answer
  • PLS HELP WHEN READY. Giving free brainliest.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!