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
Eduardwww [97]
3 years ago
9

Estimate by rounding the largest number to hundreds and then multiplying.321 x 5 is approximately

Mathematics
1 answer:
Zanzabum3 years ago
5 0

Answer:

1600

Step-by-step explanation:

1600 is the answer because

321×5 = 1605 so estimation = 1605

You might be interested in
Ratios and rates word problems
kotegsom [21]
Ratio + yb better + go cry
6 0
3 years ago
Read 2 more answers
In a simple regression analysis (where y is a dependent and x an independent variable), if the y-intercept is positive, then it
Rom4ik [11]

Answer:

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

Step-by-step explanation:

Assuming the following options:

A.  there is a positive correlation between X and Y

B.  there is a negative correlation between X and Y

C.  if X is increased, Y must also increase

D.  if Y is increased, X must also increase

E.  none of the above

If we want a model y = mx +b where m represent the lope and b the intercept

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

3 0
3 years ago
Which decimal is less than 0.47<br> (0.38) (0.9) (0.64) (0.5)
Romashka-Z-Leto [24]

Answer:

0.5

Step-by-step explanation:

just divide in a calculator

3 0
3 years ago
Read 2 more answers
Plz help..................refresh page before u answer
Ksenya-84 [330]
The answer is the first one 6/7ab
5 0
3 years ago
Which of the choices below is not a possible correlation coefficient?
fiasKO [112]

Answer:

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

Step-by-step explanation:

The correlation coefficient is a measure of dispersion and is a value between -1 and 1, and is defined as:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

8 0
3 years ago
Other questions:
  • The _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ separates the places larger than 1 from those that are fractions of 1, such
    6·2 answers
  • Which of the following describes how to translate the graph y = Ixl to obtain the graph of y = 1x - 11 - 1?
    5·1 answer
  • Which term describes this figure?
    8·1 answer
  • Find the volume of a sphere with a radius of 5 ft.
    12·2 answers
  • Evaluate the expression,75m+11n, when m=3 and n= 8.
    14·1 answer
  • I don't understand help​
    6·2 answers
  • Please look at the picture. Find where the points will be reflected
    12·1 answer
  • A rectangle is twice as long as it is wide. Its area is 72 square units. Find the length of each side. System of equations
    9·1 answer
  • 1.
    10·1 answer
  • Emergency!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!