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3 years ago

Pls answer this is due by tomorrow so I need help ASAP

Mathematics

1 answer:

leonid [27]3 years ago

5 0

5/6 = 0.83333... (Repeating)

2/11 = 0.181818... (Repeating)

17/20 = 0.85 (Terminating)

For the number system diagram, from smallest box to larges, it would be natural numbers, whole numbers, and integers, rational numbers, then real numbers. And irrational numbers off to the side, but considering you only have 3 boxes then put the first 3 I mentioned.

It is definetly possible for a number to be both whole and an integer. As long as it's not a fraction, decimal, or negative value.

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Hector collects golf balls at a driving range. each bucket holds 39 golf balls. if hector has 43 buckets to fill, estimate how m

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There are 1677 golf balls to fill all the buckets. Hope it help!

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3 years ago

A local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance tra

Karo-lina-s [1.5K]

Answer:

The critical values for α = 0.10 are t=±1.7341.

Step-by-step explanation:

The critical values for a two tailed test are the values of t that are placed in the limit of the significance level. If the test statistic t is greater than this critical values, the null hypothesis is rejected.

To determine this values, we first divide the significance level by 2. With a t-table or app, we can determine the t values for P(x>|t|)=α/2=0.05.

In this case, for a degrees of freedom DF=20-2=18, we have the test statistic t=±1.7341 that satisfies the condition.

Solution of the hypothesis test

In this problem we want to prove if the slope of the regression model is different from 0, by means of a hypothesis test.

First, we state the null and alternative hypothesis:

$H_0: B_1=0\\\\H_1: B_1 \neq 0$

The significance level is $\alpha=0.10$ .

The degrees of freedom for a simple regression model is:

$DF=n-2=20-2=18$

The standard error estimated of the slope is 0.0053.

The test statistic t is calculated as:

$t=\frac{B_1}{SE}=\frac{0.0214}{0.0053} = 4.0377$

The P-value for a two-tailed test for a t=4.0377 and DF=18 is:

$P=0.00078$

The P-value is smaller than the significance level, so the effect is statistically significant. The null hypothesis is rejected.

7 0

3 years ago

Which expression has a value of 15 when p = 12?

frutty [35]

Answer:

✨I think the answer is d.✨

Step-by-step explanation:

sorry if im wrong✨

3 0

3 years ago

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Physicians at a clinic gave what they thought were drugs to 860 patients. Although the doctors later learned that the drugs were

Alexus [3.1K]

Answer:

Z=2.36

P=0.0091

Step-by-step explanation:

The hypothesis is:

π > 0.55 which is the population proportion

The formula to get the test statistic is

Zstat = P-π/√π(1-π)/n

P =507.4/860 = 0.59 (sample proportion )

n =860 (sample size)

π =0.55(population porportion)

Zstat = 0.59-0.55/√0.55(1-0.55)/860

Zstat =2.36

From Z table the probability of Z score of 2.36 is 0.9909

To calculate for P- value will then be

P= 1 - 0.9909

P= 0.0091

4 0

3 years ago

Barry is trying to calculate the distance between point E(3, 1) and point F(4, 7). Which of the following expressions will he us

Alex777 [14]

Answer:

Option (1) is correct.

Barry uses the expression " square root of the quantity of 7 minus 1 all squared plus 4 minus 3 all squared " to find the distance between point E(3, 1) and point F(4, 7).

Step-by-step explanation:

Given : Barry is trying to calculate the distance between point E(3, 1) and point F(4, 7).

Distance between two points can be calculate using distance formula,

Distance formula states given two points P(a,b) and Q(c,d) the distance between P and Q can be calculated using the given expression ,

$D=\sqrt{(c-a)^2+(d-b)^2}$

Thus, distance between point E(3, 1) and point F(4, 7) can be calculate using above formula as ,

Here, a= 3 , b= 1 , c = 4 and d = 7

$D=\sqrt{(c-a)^2+(d-b)^2}$

Substitute above values, we get,

$D=\sqrt{(4-3)^2+(7-1)^2}$

$D=\sqrt{(1)^2+(6)^2}$

$D=\sqrt{37}$

Thus, Barry uses the expression " square root of the quantity of 7 minus 1 all squared plus 4 minus 3 all squared " to find the distance between point E(3, 1) and point F(4, 7).

Thus, Option (1) is correct.

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3 years ago

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