Answer: y = x + 5
Work:
Given slope - 1
Given coordinates- (-6,-1)
Plug the given info into equation and solve for b:
y=Mx+b
-1 = 1(-6) + b
-1 = -6 + b
5 = b
Now you have the slope and value for b.
y = x + 5
Answer:
11
Step-by-step explanation:
2 3/4 times 4 equals 11
If there are x $13 each books and y $17 each books, then we can build the following equations:
x + y = 8 (or y = 8 - x)
13x + 17y = 128 (or y = 128/17 - 13x/17)
:)
Answer:
Domain: (-∞, ∞)
Range: [0, ∞)
Step-by-step explanation:
The domain represents what x can be. In this scenario, we do not have x as a denominator, and there is nothing limiting x, so its domain is (-∞, ∞)
The range represents what f(x) can be, Because |x-4| is in absolute value, the lowest |x-4| can be is 0, and as a result, the lowest value of 2|x-4| is 2*0=0. The maximum value of f(x) is ∞ as an absolute value does not limit the maximum, making the range [0, ∞)
Answer: No, the average age is not higher than originally believed.
Step-by-step explanation:
Since we have given that
Sample size = 20
Mean = 63.7 years
Standard deviation = 1.9 years
So, Hypothesis:
So, the value of test statistic would be
At α = 0.01 level of significance,
critical value z = 2.58
Since 2.58>0.471
so, We will accept the null hypothesis.
Hence, No, the average age is not higher than originally believed.