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3 years ago

Simplify Radical Expressions. (Question in Picutes)

Mathematics

1 answer:

ladessa [460]3 years ago

7 0

Do you need to show your work ?

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How write 632.745 word form

Thepotemich [5.8K]

Six hundred thirty two and seven hundred forty five thousandths.

600 + 30 + 2 + .7 + .04 + .005

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2 years ago

Read 2 more answers

What is the distance between (1,-2) and (6,10)

Bad White [126]

Answer:

5 left, (5,_) and 12 up. (5,12)

Step-by-step explanation:

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3 years ago

WILL GIVE BRAINLIEST! A ball rolling down an inclined plane travels, in successive seconds, k feet, 2.5k feet, 4k feet, etc… . F

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

this is an arithmetic series

and to find out the 9th term

1 second ....................... k feet

2 second...........................2.5 feet

3 sec.....................................4 feet

4 sec....................................5.5 feet

difference 1.5

5 sec................................7 feet

6 sec................................8.5

7 sec.................................10 ft

9second .............................................13 ft

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3 years ago

9.50 One way to evaluate the effectiveness of a teaching assistant is to examine the scores achieved by his or her students on a

EleoNora [17]

Answer:

Step-by-step explanation:

Given that a professor sets a standard examination at the end of each semester for all sections of a course. The variance of the scores on this test is typically very close to 300.

$H_0: s^2 = 300\\H_a: s^2 \neq 300$

(Two tailed test for variance )

Sample variance =480

We can use chi square test for testing of hypothesis

Test statistic = $\frac{(n-1)s^2}{\sigma^2} \\=62.4$

p value = 0.0100

Since p <0.05 our significance level, we reject H0.

The sample variance cannot be claimed as equal to 300.

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3 years ago

Y=9 11 13 15 x= -17 -1 6 27 is it a direct or inverse variation

dybincka [34]

It would be a direct variation.

7 0

3 years ago