Answer:
multiply first equation by 2 in order to have same amount of x in both equations
2x-4y=6 now subtract equations
y=3 thus x=9
Answer: 6.88ft approximately 7ft
Step-by-step explanation:detailed explanation and calculation is shown in the image below
Answer:
g(2y) = 8y^2 -3
Step-by-step explanation:
g(x)=2 x^2 -3
Let x=2y
g(2y) = 2 (2y)^2 -3
= 2 (4y^2) -3
= 8y^2 -3
Answer: a) 1.07, b) 0.1423
Step-by-step explanation:
Since we have given that
n = 1400
Number of voters vote for Republican candidates = 720
So,
And hypothesis are :
(a) What is the z -statistic for this test?
(b) What is the P-value of the test?
p-value = P(Z>Z(statistics))
Hence, a) 1.07, b) 0.1423
Sarah and her friends = 4 people
13 pieces each. 2 pieces left over.
(4 x 13) +2 = 52 +2 = 54
there were 54 pieces in the bag