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
horrorfan [7]
3 years ago
13

An ancient calculator has faded etchings on its dials. Scientists used an x-ray scanner to decipher the etchings. A long x-ray h

as a wavelength of about 10 nanometers. How many meters is this? The prefix "nano" represents the exponent 1 x 10^-9

Mathematics
1 answer:
azamat3 years ago
7 0

Answer:

B)

Step-by-step explanation:

hope it helps an hope u got it

You might be interested in
Which expression is equivalent to 7/10-2/10
ki77a [65]

Solution:

we have been asked to find

The expression is equivalent to 7/10-2/10

we can simplify the given expression as below

\frac{7}{10}-\frac{2}{10}=\frac{7-2}{10}\\ \\ \Rightarrow \frac{7}{10}-\frac{2}{10}=\frac{5}{10}\\ \\ \text{Simplify we get}\\ \\ \frac{7}{10}-\frac{2}{10}=\frac{1}{2}\\

Hence the simplified expression , equaivalent to the given expression is 1/2.

4 0
3 years ago
Read 2 more answers
Slope = 2/5; passes through (-3,1)
nydimaria [60]
Presumably we're after the line with that slope through that point.  In general the line through (a,b) with slope m is 

y-b = m(x-a)

Here we have a=-3, b=1, m=\frac 2 5

y - 1 = \frac 2 5 (x--3)

y = \frac 2 5 x + \frac 6 5 + 1

y = \frac 2 5 x + \frac{11}{5}

Check: The slope is clearly  \frac 2 5
 so we check

y = \frac 2 5 (-3) +\frac{11}{5} = \frac 5 5 = 1 \quad\checkmark


8 0
3 years ago
The average heart pumps about 80ml of Blood each contraction. if your heart rate was 70 beats per minute, calculate the volume o
Anuta_ua [19.1K]
The heart beat rate is 70beats/minute with 80ml of blood pumped every beat. Then, the <span>volume of blood your heart pumps in one minute would be:

volume of blood per minute= volume per beat * beat per minute
</span>volume of blood per minute= 80ml/beat * 70beat/minute= 560ml/ minute<span>

</span>volume of blood per hour would be: 560ml/minute * 60 minute/hour= 33.600 ml/hour
5 0
3 years ago
preciso responder essa questão rapido ja tentei de varias formas e nao consegui então vim buscar ajuda espero que olhem e respon
Airida [17]

Answer:

1/ 14336

..... ..... ...... ......

3 0
3 years ago
tickets for a harlem globetrotter show cost $28 general admission, $43 courtside, or $173 bench seats. Nine times as many genera
densk [106]

Answer:

general admission tickets  1170

courtside tickets  985

tickets bench seats.  130

Step-by-step explanation:

To solve the problem, it is necessary to generate a system of equations with the information provided by the statement.

First be

x = # general admission tickets

y = # courtside tickets

z = # tickets bench seats.

The first equation would be that they sold nine times more general admission tickets than bench seats tickets.

That is: x = 9 * z (1)

And the second equation is that the number of general admission tickets sold was 55 more than the sum of the number of courtside tickets and bench seats tickets.

That is: x = 55 + y + z (2)

Now the third equation would be the money raised.

28 * x + 43 * y + 173 * z = 97605 (3)

Now if I replace I rearrange (1):

z = x / 9 (4) and replacement in 2, I have:

x = 55 + y + x / 9, rearranging:

y = (8/9) * x - 55 (5)

Now replacing (4) and (5) in 3, we have:

28 * x + 43 * ((8/9) * x - 55) + 173 * (x / 9) = 97605

Solving the above:

x = 1170, therefore

y = (8/9) * 1170 55 = 985

z = 1170/9 = 130

We can confirm this with equation (3)

28 * x + 43 * y + 173 * z = 97605

28 * 1170 + 43 * 985 + 173 * 130 = 97605

5 0
3 years ago
Other questions:
  • The radius r of a circle is increasing at a rate of 8 centimeters per minute. find the rate of change of the area when r = 39 ce
    7·1 answer
  • Write twelve cubed in exponential notation, expanded form, and standard form
    11·1 answer
  • The time it takes runners to complete a certain marathon are normally distributed with a mean of 4.6 hours and a standard deviat
    13·1 answer
  • To test the claim (at 1% significance) that the proportion of voters who smoked cannabis frequently was lower among conservative
    8·1 answer
  • If Hank shoots from inside the three-point line, what can be said about his distance from the center of the basket?
    6·1 answer
  • The length of a flower garden is 529 cm what is the length in meters
    14·2 answers
  • Please help thanks <br> evaluate this expression for these number: a = 2 b = 4 c = 3 c - a
    15·1 answer
  • Which table represents a function?
    6·1 answer
  • A gym charges a $59 fee plus $7.70 per week that person attends. The total cost y for any number of weeks x can be given using t
    14·1 answer
  • PLZ HELP!!<br><br> 39+(-20.4) <br><br> When you answer can you plz show how you got the answer plz!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!