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
Luden [163]
3 years ago
14

Estimate and then compute each product. Check that your answer is reasonable. 531 X 4 7

Mathematics
1 answer:
zepelin [54]3 years ago
7 0

Answer:

25,000

Step-by-step explanation:

You might be interested in
Uniform circular motion is used in physics to describe the motion of an object traveling at a constant speed in a circle. The sp
Ivanshal [37]

Answer:

  B)  T = 2πr/v

Step-by-step explanation:

To solve the given equation for T, multiply it by T/v.

v=\dfrac{2\pi r}{T}\\\\v\dfrac{T}{v}=\dfrac{2\pi r}{T}\cdot\dfrac{T}{v}\\\\T=\dfrac{2\pi r}{v} \qquad\text{simplify}

6 0
3 years ago
Answer plzzz first right answer gets brainlyiest answe okay I know I spelled it wrong
yan [13]
9.   she spends 1 hour total  and 1/2 hour on spanish. So she has another 1/2  on another subject ( as she spends equal time on each subject)

So number of subjects = 1 / 1/2 = 1 * 2 = 2


8 0
3 years ago
Smoothing a time series of observations A. is a form of statistical cheating. B. allows statisticians to use less data than woul
DedPeter [7]

Answer:

D. is used to reveal an underlying pattern in the data.

Step-by-step explanation:

Smoothing a time series is achieved when a computer uses some pre-programmed calculation methods to remove noise from large volumes of data. Smoothing helps a user detect patterns in a set of data, thus making it possible to make future predictions. For example, smoothing can be used in the prediction of the rise and fall of stock prices. This helps the traders to have an idea of what to expect in the cost of trading.

Although smoothing reveals the patterns in a set of data, it provides no explanation as to why it is so. It is left to the researcher to draw conclusions as to the reasons for the patterns.

5 0
3 years ago
Student performance across discussion sections: A professor who teaches a large introductory statistics class (197 students) wit
adell [148]

Answer:

The test is not significant at 5% level of significance, hence we conclude that there's no variation among the discussion sections.

Step-by-step explanation:

Assumptions:

1. The sampling from the different discussion sections was independent and random.

2. The populations are normal with means and constant variance

H_0: There's no variation among the discussion sections

H_1: There's variation among the discussion sections

\alpha =0.05

                Df     Sum Sq       Mean sq    F value     Pr(>F)

Section     7       525.01         75             1.87            0.99986

Residuals  189    7584.11        40.13

Test Statistic = F= \frac{75}{40.13} =1.87

Pr(>F) = 0.99986

Since our p-value is greater than our level of significance (0.05), we do not reject the null hypothesis and conclude that there's no significant variation among the eight discussion sections.

3 0
3 years ago
Solve the equation 0.3x-2=0.1(x+20) whats the solution set?
Inga [223]

x = 40/2 = 20 i think thsts the answer if I was wrong you have to right to slap my face

7 0
3 years ago
Other questions:
  • A student decided to start saving money.On the first day he saved 1 cent, on the second day an additional 2 cents, on day 3 he s
    13·1 answer
  • Please solve Question 11 correctly..
    12·1 answer
  • SKSKSKSKKSKSKSKSKSKSKSKS​
    14·1 answer
  • What is the mode for the data set?
    5·1 answer
  • Which ordered pair is a solution to the system of linear equations?
    6·2 answers
  • Please help me I need an urgent help
    6·1 answer
  • What is 65 miles in 2.7 gallons unit rate rounded to the nearest hundredth
    5·2 answers
  • Is this relationship linear, exponential, or neither?
    13·1 answer
  • Help me please :)......
    8·1 answer
  • 3 x f(−4)−3 x g(−2)=
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!