Answer:
(A) Is right
Step-by-step explanation:
put X= -2. in y = X+3
to get y 's value
Y = -2+3
= 1
therefore, your solution is ( -2,1)
Answer:
Step-by-step explanation:
<u>Formulas used:</u>
- sin θ = sin (180 - θ)
- sin θ = opposite/hypotenuse
<u>Opposite:</u>
- y- coordinate of given point = 21
<u>Hypotenuse:</u>
- √x²+y² = √20²+21²= √841 = 29
<u>Then</u>
Correct choice is D
Answer:
(3*8*) ^*7*8*
Step-by-step explanation:
IM DONE TO SHOW YOU
Answer:
The training does reduce response time at 0.05 level of significance
Step-by-step explanation:
Population mean for a population with normal distribution, where the standard deviation is known and the appropriate significant test is given then;
z=x-μ / δ/√n
where
μ= 9 minutes
x=8 minutes
δ= 4.2
n= 36
Applying the formula;
z= 8-9 / 4.2/√36
z= -1 / 4.2/6
z= -1 /0.7 = - 1.429
Perform the test where
H₀ : p=0.05 verse Ha : p < 0.05
Using the Z-table, find the probability that Z is less than -1.43.
You will find the probability of 0.0764 of Z being more than the value in test thus; there are high chances that results will be observed according to the null hypothesis
Answer:
Step-by-step explanation:
i need to see the diagram, to help you
