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3 years ago

Please HELP!2 Write 4 x 10 in standard notation.

Mathematics

2 answers:

Monica [59]3 years ago

8 0

40

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

mihalych1998 [28]3 years ago

6 0

Answer:

Step-by-step explanation:

sorry if i'm wrong but i really hope this helps

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Find the radius of a discus woth a circumference 8.6 pi inches

gulaghasi [49]

Answer:

4.3π or 13.51 = r

Step-by-step explanation:

C=2πr To find the circumference of a circle, you must have the formula

8.6π = 2πr Substitute the C for 8.6π

4.3π = r Divide both sides by 2π

13.51 = r Simplify 4.3π if needed

4 0

3 years ago

The correlation analysis assumes that the measurements have a bivariate normal distribution in the population. Select all of the

RoseWind [281]

Answer:

A. True

B. True

C. False

D. False

E. False

F. False

G. True

Step-by-step explanation:

Select all of the features that define a bivariate normal distribution.

(this means that we select only those that are properties of the bivariate normal distribution)

A. Bell-shaped probability distribution in two dimensions rather than one

TRUE because any combination of the two is still normal Z(x,y)=aX+bY

B. A relationship between X and Y that is not linear

TRUE The contours of the distribution are ellipses.

C. The presence of outliers

FALSE possible, but not always.

D. Either X or Y has a decidedly skewed distribution

FALSE normal distributions are symmetric

E. A relationship between X and Y that is linear

FALSE see answer to B

F. A cloud of points that is funnel shaped (wider at one end than the other)

FALSE normal distributions are symmetric

G. The frequency distributions of X andY separately are normal

TRUE For example, in Z(x,y)=aX+bY, putting a or b=0 means that X and Y separately are normal.

4 0

3 years ago

Assuming all model requirements for conducting the appropriate procedure have beenâ€‹ satisfied, is the mean IQ of the students

Triss [41]

Answer:

Step-by-step explanation:

The right statistical procedure is by applying a hypothesis test that uses a single mean. Here, if we are to talk about comparison, it should be between the mean IQ of the students in the class and the national average IQ. The class is not for a comparison between two population means because it is viewed as the sample of the population. That is to say, the required task is to determine if the sample mean is greater than the population mean. We can conclude that this obeys a hypothesis test rather than a confidence interval.

6 0

3 years ago

Romashka [77]

9.42 Units

Step-by-step explanation:

Since the angle shown is 90 degrees we can deduce that the rest of the arc is 270 degrees therefore we can make the fraction:

270/360; 360 being the total angle measurement of a circle

270/360 simplifies to 3/4

The fraction represents how much of the circle that arc covers

Now we have to find the circumference which would be

2(3.14)r

r = 2 therefore: 2(3.14)2 = 12.56

Now that we have the circumference of the WHOLE circle we multiply it by 3/4 to find out the arc length

Which gives us 9.42

8 0

3 years ago

Priscilla is on her school’s swim team. Her coach has noted the number of laps Priscilla and five of her teammates can swim with

ruslelena [56]

Answer:

Mean: 5, Median: 5, Mode: 5, Range: 4

Step-by-step explanation:

Mean: 5

5 + 4 + 6 + 3 + 7 + 5 = 30

30/6 = 5

Median: 5

3, 4, 5, 5, 6, 7,

Mode: 5

3, 4, 5, 5, 6, 7

2 fives

Range: 4

7 - 3 = 4

5 0

2 years ago

Please HELP!2 Write 4 x 10 in standard notation.​

Please HELP!2 Write 4 x 10 in standard notation.