What are the x- and y-intercepts for the equation "2x + 3y = 6"?
2 answers:
Answer:
(0,2) & (3,0)
Step-by-step explanation:
Given the equation :
Step 1:
To find the y-intercept, you want to set the x value to zero. This will allow you to solve for y, and find where the equation intercepts why on the 0 line:
So, at x=0, y=2. or (0,2)
Step 2:
Set y = 0 and solve for x:
so at y=0, x=3. which is the same as saying: when x=3, y=0, or (3,0)
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Answer:
z = -1.645
Step-by-step explanation:
b) n =25, M = 4.01 , \mu = 4.22 , \sigma = 0.60 , \alpha= 0.05
The hypothesis are given by,
H0 : \mu\geq 4.22 v/s H1 : \mu < 4.22
The test statistic is given by,
Check attachment for the formula that should br here.
z = \frac{4.01- 4.22 }{0.60 /\sqrt{25}}
= -1.75
The critical value of z = -1.645
The calculated value z > The critical value of z
Hence we reject null hypothesis.
The healthy-weight students eat significantly fewer fatty, sugary snacks than the overall population.
