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3 years ago

Which table represents a function that does not have a constant rate of

Mathematics

1 answer:

Svetach [21]3 years ago

7 0

Answer:

Step-by-step explanation:

In table one , the rate of change is by adding 7 to each number

in table 2, the rate of change is by adding 6 to each number

in table 4, the rate of change is by adding 8 to each number

but in table 3, there is no precuse addition of numbers

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A study was conducted in order to estimate ?, the mean number of weekly hours that U.S. adults use computers at home. Suppose a

Stels [109]

Answer:

d. the current study does not provide significant evidence that the mean number of weekly hours has changed over the past year, since 8 falls inside the confidence interval.

Step-by-step explanation:

Mean was of 8 hours, test if it has changed:

At the null hypothesis, we test if it has not changed, that is, the mean is still of 8, so:

$H_0: \mu = 8$

At the alternative hypothesis, we test if it has changed, that is, the mean is different of 8, so:

$H_1: \mu \neq 8$

Using a 95% confidence interval of (7.7, 9.3), our conclusion is that:

8 is part of the confidence interval, which means that the study does not provide evidence that the mean has changed, and the correct answer is given by option d.

8 0

3 years ago

Valerie wants to take out a discount loan of $569. The rate is 4.5% for 250 days. How much interest will she pay? (Be sure to ro

lina2011 [118]

The interest is computed from

... I = Prt

where P is the principal amount ($569), r is the rate (0.045) and t is the time in years (250/360).

... I = $569×0.045×250/360 ≈ $17.78

Please note that time is not rounded. Rather, the exact value (25/36) is used in the calculation. The only rounding of any number is done at the end, where the amount is rounded to the nearest cent. (Your text authors should know this.)

_____

If you follow the problem instructions (which Valerie's lender will <em>not</em> do), the interest is calculated as ...

... t = 250/360 = 0.6944444... ≈ 0.69 . . . . years

... I = $569×0.045×0.69 ≈ $17.67

_____

Note the rounding of intermediate numbers (time) introduces an error of about $0.11 in the answer.

8 0

3 years ago

Read 2 more answers

In the figure find the value of x figure is not drawn on scale

bija089 [108]

Answer:

x + 110 + 47 = 180

x = 180 - 157

x = 23

7 0

3 years ago

Brampton is 70 kn due east of Abbott. The bearing of Corwood from Abbott is 015 degrees and from Brampton is 290 degrees. Calcul

Mashcka [7]

I THINK YOU NEED OPEN MATH BOOK! ;)

4 0

3 years ago

By what number should 9 4upon5 be multiplied to get 42

kondaur [170]

Answer:

4 2/7

Step-by-step explanation:

x * 9 4/5 = 42
x * 49/5 = 42
x = 42 : 49/5
x = 42 * 5/49
x = 30 /7
x = 4 2/7

7 0

3 years ago