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2 years ago

Find the product using suitable properties (a) 738 × 103 (b) 102 × 854

Mathematics

2 answers:

Cloud [144]2 years ago

7 0

Answer:

(a) 738×103=76,014

(b) 102×854=87,108

Luba_88 [7]2 years ago

7 0

Answer:

a) 738×103=76014

b) 102×854=87108

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Amy and Fraser walk inside a circular lawn. Point O is the center of the lawn, as shown below: A circle is drawn. The center of

Assoli18 [71]

Answer:

Both Amy and Fraser walk distances equal to the radius of the lawn.

Step-by-step explanation:

The radius of a circle is a line segment from the center to the outside edge (circumference).

Amy walks from O, the center, to A, along the outside edge, using segment OA. This is a radius of the circle.

Fraser walks from O, the center, to B, along the outside edge, using segment OB. This is a radius of the circle.

Thus the correct answer is that both Amy and Fraser walk distances equal to the radius of the lawn.

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4 years ago

Read 2 more answers

More than three-quarters of the nation’s colleges and universities now offer online classes, and about 23% of college graduates

RUDIKE [14]

Answer:

0.1997 or 19.97%

Step-by-step explanation:

Have taken course online (H) = 23%

Have NOT taken course online (N) = 77%

Have taken course online and don't believe they provide same value (H&D) = 61%

Have NOT taken course online and don't believe they provide same value (N&D) = 73%

The probability that a student has taken a course online given that she does not believe that online courses provide the same educational value as one taken in person is;

$P(H|D)=\frac{P(H)*P(H\&D)}{P(H)*P(H\&D)+P(N)*P(N\&D)}\\P(H|D)=\frac{0.23*0.61}{0.23*0.61+0.77*0.73}\\P(H|D)=0.1997$

There is a 0.1997 or 19.97% chance that she has taken an online course before.

3 0

4 years ago

CAN SOME HELP ME PLEASE IT'S DUE IN 10 MINS

sasho [114]

Answer:

Step-by-step explanation:the first one

6 0

3 years ago

suppose a study estimated the population mean for a variable of interest using a 99% confidence interval. If the width of the es

Dovator [93]

Answer:

Population standard deviation, $\sigma$ = 3683.063 .

Step-by-step explanation:

We are given that the width of the estimated confidence interval i.e. 99% is 600 and the sample size used in estimating the mean is 1000 which means ; n = 1000 and width = 600

We know that Width of confidence interval = 2 * Margin of error

<em> Margin of error</em><em> </em>= $Z_\frac{\alpha}{2} * \frac{\sigma}{\sqrt{n} }$ = 2.5758 * $\frac{\sigma}{\sqrt{1000} }$ {because at 1% significance level