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Llana [10]
3 years ago
6

GRADUATING THIS WEEK NEED THIS ALL ANSWERED

Mathematics
2 answers:
Elza [17]3 years ago
6 0

Answer:

3 hours

Step-by-step explanation:

We have the amount of miles that Tanika passed, 189 miles. We also have the speed at which Tanika was driving, 63 miles per hour. Basically, Tanika was passing 63 miles on every one hour of driving. In order to find out how much time was Tanika driving with that speed to pass those miles, we just simply need to divide the miles passed with the speed of driving:

189 / 63 = 3

So we have a result of 3, thus Tanika needed three hours with a speed of 63 miles per hour to pass 189 miles.

aalyn [17]3 years ago
5 0

Question 1:

For this case we can raise a rule of three:

63 miles ---------------> 1 hour

189 miles -------------> x

Where "x" represents the number of hours it takes Tanika to travel 189 miles.

x = \frac {189 * 1} {63}\\x = 3

So, Tanika takes 3 hours to travel 189 miles

Answer:

Three hours

Question 2:

For this case we must solve the following equations:

A) -2x

Dividing between -2 on both sides of the inequality:

x

B) 5t + 7

We subtract 7 on both sides of the inequality:

5t

Dividing between 5 on both sides of the inequality:

t

C) 12s-17 \geq2s + 33

We subtract 2s on both sides of the inequality:

12s-2s-17 \geq33\\10s-17 \geq33

We are 17 on both sides of the inequality:

10s \geq33 + 17\\10s \geq50

We divide between 10 on both sides of the inequality:

s \geq \frac {50} {10}\\s \geq5

D) -8m> -24

Dividing between -8 on both sides of the inequality:

m> \frac {-24} {- 8}\\m> 3

E) 8n + 7> 4n + 35

Subtracting 4n on both sides of the inequality:

8n-4n> 35-7\\4n> 28

Dividing between 4 on both sides of the inequality:

n> \frac {28} {4}\\n> 7

Answer:

x  7

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A researcher obtains t = 2.35 for a repeated-measures study using a sample of n = 8 participants. Based on this t value, what is
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Answer:

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Step-by-step explanation:

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The significance level is not provided but we can assume it as \alpha=0.05. First we need to calculate the degrees of freedom like this:

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The next step would be calculate the p value for this test.  Since is a bilateral test or two tailed test, the p value would be:  

p_v =2*P(t_{7}>2.35)=2*0.0255=0.051  

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HELP 20 POINTS!!! Does the infinite geometric series diverge or converge? Explain.
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Answer:

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Find the distance between points (-3,-4) and (1,-2)
Ludmilka [50]

Answer:

√20 or 4.47 ish

Step-by-step explanation:

√(1--3)²+(-2--4)²

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√16+4

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4.47 ish

(Hopefully this is correct, have a nice day!)

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antoniya [11.8K]
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