Answer:
Measure of <QTS = 20°
Measure or minor arc QS = 40°
Step-by-step explanation:
From the figure we can see a circle with center U.
<u>To find the measure of <QTS</u>
m<QTS = m<QPS [Angles subtended by same arc are equal]
Therefore m<QTS = 20°
<u>To find the measure of minor arc QS</u>
Measure or minor arc QS = 2 * m<QPS
= 2 * 20 = 40°
Measure or minor arc QS = 40°
We're trying to evaluate a fractional expression here:
The first thing to do, is factor everything we can. The quadratic factors to (x + 1)(x+5) and the expression above that factors to 3(x - 4). 2x + 2 factors to 2(x + 1).
It looks a little complicated now, but if we combine the two we can cancel some stuff.
Still looking complicated, but look, we have (x+1) and (x+4) on the top and the bottom, that means they don't matter and we can get rid of them:
Tada! The area is 6/(x+5). We'd need to know x to go any further!
Need any more explanation?
Mark brainliest please mark
So basically the decimal dot is in the tenth place which means it is 5/10
U can simplify that into 1/2
Final answer: 1/2
Answer:
Step-by-step explanation:
We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean
For the null hypothesis,
µ = 6.8 psi
For the alternative hypothesis,
µ ≠ 6.8
This is a 2 tailed test
Since the population standard deviation is given, z score would be determined from the normal distribution table. The formula is
z = (x - µ)/(σ/√n)
Where
x = sample mean
µ = population mean
σ = population standard deviation
n = number of samples
From the information given,
µ = 6.8
x = 6.9
σ = 0.7
n = 140
z = (6.9 - 6.8)/(0.7/√140) = 0.17
Therefore, the value of the test statistic us 0.17