Answer:
H0 : μ = 0.107
H1 : μ ≠ 0.107
Step-by-step explanation:
The claim is the alternative hypothesis. H1 ; which is a researcher's opinion that the proportion of Americans aged 65 and above using the internet as changed from the mean value of 10.7% (0.107). The direction of the change is not given, hence. We cannot use the greater or less Than sign as the direction of the change isn't specified by the researcher or data Given. Hence, the shift could be either to the right or left. Hence, the use of the equal to and not equal to sign.
The null will oppose the alternative hypothesis and take the stance that the proportion hasn't changed from the initial mean.
Answer:
(2x^2+7)
Step-by-step explanation:
5x^3 * 2x^2 = 10x^5
5x^3 * 7 = 35x^3
X=9
DBC= 54°
The given angle is 90°, so we can add the other two given equations to equal 90.
7x-9+4x=90
1) Combine like terms
11x-9=90
2) Add 9 to both sides
11x=99
3) Divide 11 on both sides
x=9
Now to find the angle:
7x-9
1) Plug 9 in for x (which is what we just solved for)
7(9)-9
2) multiply
63-9
3) subtract
54
m= 54°
Slope-poitn form:
We need a point (x₀,y₀) and the slope (m).
y-y₀=m(x-x₀)
In this case:
(-9,-3)
m=-6
y+3=-6(x+9)
y+3=-6x-54
y=-6x-54-3
y=-6x-57
Answer: y=-6x-57
Answer:
Step-by-step explanation:
Given expression:
Write in scientific notation:
The quotient of the decimal factors is 0.5 and therefore less than 1.
The first factor in scientific notation must be less than 10 and greater than or equal to 1. Therefore, 0.5 should be multiplied by 10 to become 5.0, which means the exponent of the quotient will be decreased by 1.
Learn more about exponents here:
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