Answer:
Therefore,
Jana bikes 18 miles in one hour.
Step-by-step explanation:
Given:
Jana bikes,
15 miles ---------------> in 50 minutes
To Find:
How many miles ------------------> in 1 hour = 60 minutes
Solution:
Let 'x' miles Jana Bikes in 1 hour or 60 minutes
As, 1 hour = 60 minutes
The Ratio of Equation will be
Cross Multiplying we get
Therefore,
Jana bikes 18 miles in one hour.
Answer:
the answer of this question is " 1 "
Step-by-step explanation:
as
tanx = sinx/cosx
cotx = cosx/sinx
cscx = 1/sinx
after putting them all in the given equation
sinx.(sinx/cosx).(cosx/sinx).(1/sinx)
they all are canceled as all are being multiplied with their reciprocals so answer is " 1 "
3t+40=A
he starts with 40, so you add that to 3 t (3 meters every year-t)
Answer:
129
Step-by-step explanation:
Considering the survey to be representative, you can simply multiply the share of students <em>p</em> preferring “Track & Field” with the whole school population at the same time to estimate the number of such students in the whole school.
First we need to find the relative share <em>p</em> of such answers in the study by dividing it by the sum of answers, assuming that the table is complete for that random sample:
<em>p</em> = 4/(8 + 5 + 4) = 4/17
Then for the whole school we get 550 <em>p</em> ≈ 129.4
Answer:
The value of the test statistic is 
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean, 
is the value tested at the null hypothesis, 
is the standard deviation and n is the size of the sample.
In this problem, we have that:
Then
The value of the test statistic is
