Let r = # of red marblesLet 2r = # of blue marbles ... (1/2 as many red as blue, means blue is twice the red)Let r+8 = # of yellow marbles ... (8 more than the red) Total is 56 ... our equation is r + 2r + r + 8 = 56 4r + 8 = 56 4r = 56 - 8 4r = 48 r = 12 There are 12 red marbles.There are 24 blue marbles.There are 20 yellow marbles.
Answer:
They got smaller
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
g(x)=1/4|x|
g(x)=1/4|x|
Answer:
b. There is no difference between p1 and p2.
Step-by-step explanation:
Given that a 90% confidence interval for the difference of proportions contains some positive and some negative values
i.e. confidence interval lower bound is negative and upper bound is positive
This confirms that 0 is contained in the confidence interval for difference of proporitons at 90%
Hence for the hypotheses
we find that 0 is inside the confidence interval
This implies null hypothesis is accepted
Hence we conclude that there is no difference
b. There is no difference between p1 and p2.
Answer:
a = -2
b = 4
c = -3
Step-by-step explanation:
a quadratic equation is in the format <em>ax² + bx + c </em>
looking at our equation -2x² + 4x - 3 = 0, we look at the quadratic equation format as an example and see that
a = -2
b = 4
c = -3