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
Cloud [144]
2 years ago
11

What is 6.6 × 10^2 in standard form​

Mathematics
2 answers:
OlgaM077 [116]2 years ago
8 0
660

Explanation: When you see ^x, you have to add x many zeroes to the end of your original number! So 7 * 10^3 would be 7000, etc. Hope this helps!
NemiM [27]2 years ago
3 0

In standard form :660

You might be interested in
AYO HELP ME WITH THIS!!!!
xeze [42]

Answer:

a taco is 1.25 and a drink is 0.95

Step-by-step explanation:

tacos = t

drinks = d

5t + 3d = 9.10

3t + d = 4.70

this is a simultaneous equation so times the first one by one and the second by 3 and then take them away from each other and solving to get

t = 1.25 and d=0.95

one drink is $0.95

one taco is $1.25

Hope this helps!!

4 0
2 years ago
A physicist examines 25 water samples for nitrate concentration. The mean nitrate concentration for the sample data is 0.165 cc/
xz_007 [3.2K]

Answer:

The 80% confidence interval for the the population mean nitrate concentration is (0.144, 0.186).

Critical value t=1.318

Step-by-step explanation:

We have to calculate a 80% confidence interval for the mean.

The population standard deviation is not known, so we have to estimate it from the sample standard deviation and use a t-students distribution to calculate the critical value.

The sample mean is M=0.165.

The sample size is N=25.

When σ is not known, s divided by the square root of N is used as an estimate of σM:

s_M=\dfrac{s}{\sqrt{N}}=\dfrac{0.078}{\sqrt{25}}=\dfrac{0.078}{5}=0.016

The degrees of freedom for this sample size are:

df=n-1=25-1=24

The t-value for a 80% confidence interval and 24 degrees of freedom is t=1.318.

The margin of error (MOE) can be calculated as:

MOE=t\cdot s_M=1.318 \cdot 0.016=0.021

Then, the lower and upper bounds of the confidence interval are:

LL=M-t \cdot s_M = 0.165-0.021=0.144\\\\UL=M+t \cdot s_M = 0.165+0.021=0.186

The 80% confidence interval for the population mean nitrate concentration is (0.144, 0.186).

6 0
3 years ago
FR.EE POI.NTS!!!!!!!! I HOPE U HAVE/HAD A NICE DAY OR NIGHT
lara31 [8.8K]

Answer:

Step-by-step explanation:

Thank you

8 0
3 years ago
Pls only put the right answer
Makovka662 [10]

Answer:

100°

Step-by-step explanation:

No explanation, by  your request.

3 0
2 years ago
15. The container shown in the figure is filled with a liquid that weighs 50 g. Find its density.
3241004551 [841]

Answer:

  C.  0.006 g/cm³

Step-by-step explanation:

As the units tell you, density is the ratio of mass to volume. The volume of the container is found from ...

  V = πr²h = π(10 cm)²(25 cm) = 2500π cm³

Then the density is ...

  ρ = (50 g)/(2500π cm³) = 1/(50π) g/cm³

  ρ ≈ 0.006 g/cm³

_____

<em>Comment on the problem</em>

The "liquid" has about the same density as air pressurized to 75 psi.

5 0
2 years ago
Read 2 more answers
Other questions:
  • a driver starts his parked car and within 5 seconds reaches a speed of 60km/h as he travels east. what is his acceleration
    11·2 answers
  • the sum of the internal angles of a regular polygon is equivalent to 56 right angles. Find the measure of the central angle of t
    11·1 answer
  • What is the classification for this polynomial?
    10·1 answer
  • Find the value of the length <br> x<br> rounded to 1 DP.
    7·2 answers
  • ANSWER PLEASE LIKE NOW
    9·1 answer
  • What happens to the value of the expression n+15 as n decreases?
    15·2 answers
  • Determine whether each equation represents exponential growth or decay y=16.5(1.025)^(1/x)
    10·1 answer
  • Over the school holidays Brianna worked
    9·1 answer
  • Which statement best explains if the graph correctly represents the proportional relationship y = 0.5x? (4 points)
    5·1 answer
  • Find the missing numerator 3 1/3=x/6
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!