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jolli1 [7]
3 years ago
12

Stats. can someone help?

Mathematics
1 answer:
artcher [175]3 years ago
5 0

Answer:

you should try picto math it very helpful!

Step-by-step explanation:

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Rebecca went on a 240 mile trip to a soccer game. On the way back, due to road construction she had to drive 12 miles per hour s
AlladinOne [14]

Answer:

20mph

Step-by-step explanation:

because you have to divide 240 by 12 and the answer is 20

8 0
3 years ago
TJ bought 3 t-shirts & a pair of shorts for $15. If each shirt was $4.25, how much were the shorts?
arsen [322]
You have $15.00 and each shirt you bought was $4.25 
$4.25x3=$12.75
$15.00-$12.75= $2.25

So your shorts were $2.25
7 0
3 years ago
A boat is 2000m from a cliff. If the angle of depression from the top of the cliff to the boat is 10 degrees, how tall is the cl
lubasha [3.4K]

Answer:

Let AB is the height of the cliff = H and p is the posit ion of the boat.Angle of depression= angle of elevation= 15 degrees therefore angle APB= 15 degrees tan 15=AB=h/1,000 h=(1,000)*tan 15=(1,000)(0.26794919243112)=268.94919243112 meters or

Simply: 268meters..........Ans

6 0
3 years ago
Read 2 more answers
Please help me!! How do you factor this???<br> 16x^5+12xy-9y^5
Aleksandr [31]
First simplifying step by step.

<span>16x^5+12xy-9y^5

Answer is = </span><span><span><span>16<span>x^5</span></span>+<span><span>12x</span>y</span></span>+</span>−<span>9<span>y<span>5

It will help you.
</span></span></span>
7 0
3 years ago
he mean age of bus drivers in Chicago is greater than 54.4 years. If a hypothesis test is performed, how should you interpret a
Natalka [10]

Answer:

There is not sufficient evidence to support the claim μ > 54.4.

Step-by-step explanation:

1) Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

2) Solution to the problem

On this case we want to test is \mu>54.4 and the system of hypothesi on this case are:

Null Hypothesis: \mu \leq 54.4

Alternative hypothesis:\mu >54.4

On this case is our decision is FAILS to reject the null hypothesis then we can conclude that we don't have enough evidence to support the claim at the significance level provided.  So the correct conclusion would be:

There is not sufficient evidence to support the claim μ > 54.4.

8 0
3 years ago
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