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Stella [2.4K]
2 years ago
14

Can someone help me What one

Mathematics
1 answer:
Sav [38]2 years ago
5 0

Answer:

try the second one sorry if its wrong report me if it is

Step-by-step explanation:

hope this help

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PLZ HELPPP MEEEE What is the difference between a rate and a unit rate
slega [8]

A rate is a special ratio in which the two terms are in different units. For example, if a 12-ounce can of corn costs 69¢, the rate is 69¢ for 12 ounces. ... When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates.

hope this helps!

5 0
2 years ago
The principal of a large high school wants to know if students spend more than 1 hour doing homework per night, on average. To i
MrRissso [65]

Answer:

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

Step-by-step explanation:

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".

Solution to the problem

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

7 0
3 years ago
BEST ANSWER GETS BRAINLIEST!! HELP PLEASE
skad [1K]
Area of the sign ( trapezoid ) :
A = ( a + b ) / 2 · h 
where: a = 8, b = 5, h = 5
A = ( 8 + 6 ) / 2 · 5 = 
= 14/2  · 5 = 7 · 5 = 35 ft²
Answer:
B ) 35 square feet
7 0
2 years ago
Read 2 more answers
How can you identify the y intercept on a graph?
Veseljchak [2.6K]

Answer:

Is there a graph that goes with this question by chance?

Step-by-step explanation:

8 0
2 years ago
The product of 3 and a number x is 23 . What is the value of x?
Scrat [10]
I believed there's a typo in your question
<span>The product of 3 and a number x is 2/3
if so
</span>3x = 2/3
  x = 2/3 * 1/3
  x = 2/9

answer 
x = 2/9


8 0
3 years ago
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