Answer: a. The rise is –5, the run is 4.
Step-by-step explanation:
Given :- A line in the Cartesian plane passes through the points (–2, 4) and (2, –1)
Let and
We know that rise of a line = vertical change of points=change in the coordinates of y
=
Run of line=horizontal change of points=change in the coordinates of x
=
Therefore, The rise is –5, the run is 4.
Answer:i think x=141
Step-by-step explanation:i agree
Answer: It is A 1
Hope it helped
Step-by-step explanation:
C. Division property of equality.
You divide the 3 from x and from the 12, which ends of giving you x = 4.
Process of division.
Answer:
This question is incomplete, here is the complete question:
A test developed to measure ESP involves using Zener cards. Each card shows one of five equally likely symbols (square, circle, star, cross, wavy lines) and the person being tested has to predict the shape on each card before it is selected. Answer questions a-c below to find each of the probabilities requested for a person who has no ESP and is just guessing. a. Determine the statistical procedure you should use to answer this question and explain why. b. What is the probability of correctly predicting exactly 20 cards in a series of 100 trials? c. What is the probability of correctly predicting more than 16 cards in a series of 64 trials?
Step-by-step explanation:
a)
X - the number of success
following the binomial distribution with p = 1/5
or when np > 5 ,nq > 5
we can use normal approximation
mean = np
sd =sqrt(npq)
b)
here n = 100
P(X = k) = 100Ck * (1/5)^k *(1-1/5)^(100-k)
P(X = 20) = 100C20 (1/5)^20* (4/5)^80
by normal approximation
μ = 20 and σ = 4 For X = 20,
P(19.5 < X< 20.5)
P ( −0.13<Z<0.13 )=0.1034
and p = 0.1034.
c)
P(X > 16)
mean = np = 64/5 = 12.8
sd = sqrt(npq) = sqrt(12.8*.8)= 3.2
P(X > 16)
=P(Z > (16.5 - 12.8)/3.2)
= P(Z> 1.1562)
= 0.1238