Answer:
letter c
Step-by-step explanation:
<h2>YOUR LUCKY THAT THIS QUESTION IS IN MY LEARNING & PLEASE NEXT TIME PUT THE GRAPH THAT YOU ARE TALKING ABOUT</h2>
<h3>KEEP ON LEARNING</h3>
Answer:
see below PLEASE GIVE BRAINLIEST
Step-by-step explanation:
Rate on still sidewalk : 49 ÷ 7 = 7 ft per second
Rate of moving sidewalk : 77 ÷ 7 = 11 ft per second
Answer:
1. 50%
Step-by-step explanation:
For each day, there are only two possible outcomes. Either it does rain, or it does not, so we use the binomial probability distribution to solve this problem.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this problem we have that:

We want to find
NNN + RNN + NRN + NNR
This is

So


![P(X = 1) = C_{3,1}.(0.5)^{1}.(0.5)^{2} = 0.375/tex][tex]P(X \leq 1) = P(X = 0) + P(X = 1) = 0.125 + 0.375 = 0.5](https://tex.z-dn.net/?f=P%28X%20%3D%201%29%20%3D%20C_%7B3%2C1%7D.%280.5%29%5E%7B1%7D.%280.5%29%5E%7B2%7D%20%3D%200.375%2Ftex%5D%3C%2Fp%3E%3Cp%3E%5Btex%5DP%28X%20%5Cleq%201%29%20%3D%20P%28X%20%3D%200%29%20%2B%20P%28X%20%3D%201%29%20%3D%200.125%20%2B%200.375%20%3D%200.5)
The correct answer is:
1. 50%
Answer:
cosA = 0.6
Step-by-step explanation:
Using the Pythagorean identity
sin²A + cos²A = 1 ( subtract sin²A from both sides )
cos²A = 1 - sin²A ( take the square root of both sides )
cosA = ± 
Since only the positive value is required , then
cosA = 
= 
= 
= 0.6