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Ipatiy [6.2K]
4 years ago
9

I really need help with this question. I would also like explanation along with a answer also.

Mathematics
1 answer:
strojnjashka [21]4 years ago
6 0

You will arrive at the destination at 12.30 PM. Yes, there is information that is not needed in the question.

Explanation:

  • You leave at 8.00 AM and drive for 2 hours until 10.00 AM.
  • At 10.00 AM you stop for \frac{1}{2} an hour (30 minutes) for lunch until 10.30 AM.
  • You drive for another hour until 11.30 AM.
  • At 11.30 AM you make a 15 minute stop for gas until 11.45 AM.
  • After 11.45 P.M, you then drive the last 45 minutes until 12.30 PM and reach your destination.
  • It takes you 30 minutes to pack your car but this information is not needed to determine when you will arrive at your destination.

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HELP ASAP !! NEED ANSWERS !!!
satela [25.4K]

Answer: 180 degrees clockwise

Step-by-step explanation:

4 0
3 years ago
Based on information from Harper’s Index, 37% of adult Americans believe in Extraterrestrials. Out of a random sample of 100 adu
san4es73 [151]

Answer:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

Step-by-step explanation:

We have a prortion test.

P₀  =  37 %         P₀  = 0,37

sample size  =  n  =  100

P sample proportion   =   P  = 47 %        P  =  0,47

confidence interval  95 %

α  =   0,05  

One tail-test  (right tail) our case is to show if sample give enough information to determine if proportion of individual who attended college is higher than the proportion found by Harper´s index.

1.-Hypothesis:

H₀      null hypothesis                        P₀  =  0,37

Hₐ  alternative hypothesis                P₀  >  0,37

2.-Confidence interval 95 %

α  =   0,05        and    z(c)  =  1.64

3.-Compute of z(s)

z(s)  =  [  P  -  P₀  ]  /√(P₀Q₀/n) ]  

z(s)  =  [ (  0,47  -  0,37  ) /  √0.37*0,63/100

z(s)  = 0,1 /√0,2331/100     ⇒   z(s)  = 0,1 /0,048

z(s)  = 2.08

4.-Compare  z(s)   and  z(c)

z(s) > z(c)        2.08  > 1.64

5.-Decision:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

5 0
4 years ago
Solve f(-7) for f(x) = 17 – X
grigory [225]

Answer:

f(-7) = 24

Step-by-step explanation:

Step 1:  Identify the Function

f(x) = 17 - x is the function

Step 2:  Set x to -7 in the function

f(-7) = 17 - (-7)

f(-7) = 17 + 7

f(-7) = 24

Answer: f(-7) = 24

8 0
4 years ago
Determine the range of the graph
VashaNatasha [74]

Answer:

is 20

Step-by-step explanation:

hope this helps

8 0
3 years ago
What is the simplified form of the quantity of x plus 3, all over 4 + the quantity of x plus 2, all over 4 ? (2 points) the quan
pentagon [3]
ANSWER

\frac{2x + 5}{4}

EXPLANATION

We want to simplify

\frac{x + 3}{4} + \frac{x + 2}{4}

The fractions have the same denominator so we write one denominator and add the numerators to obtain,

\frac{x + 3 + x + 2}{4}

Regroup in the denominator to get,

\frac{x + x + 3 + 2}{4}

This simplifies to;

\frac{2x + 5}{4}
8 0
3 years ago
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