Answer:
-2y = 4 - x
2y = x - 4
y = 1/2x - 2
1/2 is the slope of both lines.
y = mx + b
Substitute the given point and the common slope
2 = 1/2 x 2 + b
2 = 1 + b
b = 1
y = 1/2x + 1
The equation of the line that passes through the point
(2, 2) and is parallel to the line x - 2y = 4 is y = 1/2x + 1 or 2y = x + 2.
hope this helps u
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Answer:
x = HJ/7 + 27/7
Step-by-step explanation:
Hope this helps!
-35 and 42/100........................................
Answer:
(a) Null hypothesis: The new drug reduces the rate of first heart attacks by a percentage same as aspirin.
(b) Alternate hypothesis: The new drug reduces the rate of first heart attacks by a percentage greater than aspirin.
Step-by-step explanation:
(a) A null hypothesis is a statement from the population parameter which is either rejected or accepted (fail to reject) upon testing. It is expressed using the equality sign.
(b) An alternate hypothesis is also a statement from the population parameter which negates the null hypothesis and is accepted if the null hypothesis is rejected. It is expressed using any of the inequality signs.
Answer: x=2 and y=−6
Step-by-step explanation: 2x+y=−2, 5x+3y=−8
2x+y=−2
2x+y+−2x=−2+−2x
y=−2x−2
5x+3y=−8
5x+3(−2x−2)=−8
−x−6+6=−8+6
−x=−2
−x
/−1
=
−2
/−1
x=2
y=−2x−2
y=(−2)(2)−2
y=−6
x=2 and y=−6
