Answer:
n= -4/7
Step-by-step explanation:
Step-by-step explanation:
Given that Rita is making a beaded bracelet. She has a collection of 160 blue beads, 80 gray beads, and 240 pink beads. We are to calculate the probability that Rita will need to pick atleast 5 beads before she picks a grey bead from her collection.
Prob for drawing atleast 5 beads before she picks a grey bead from her collection
= 1-Prob for drawing atleast one grey beed in the first 5 draws.
(Because these two are complementary events)
no of grey beeds drawn in first 5 trials is
Bi=(5,1/6)
Prob for drawing atleast one grey beed in the first 5 draws.
=1-Prob of no grey
Hence required prob=P(X=0 in first 5 draws)
= 0.4018
6th beeds onwards can be grey also.
Nearest answer is c)0.45
It had taken a while for me to understand the problem. From what I understood, the given pairs of points are tabulated below:
x f(x) -7 -11
-1 1
3 9
4 11
7 17
Then, the choices are equations in terms of x. The correct equation should yield the pairs tabulated above when the x-values are substituted into the equation. So, the solution is basically just substituting x to each of those equations, then you get the corresponding y values. Check which of those question has pairs similar to the given. I suggest that you tabulate the numbers so that it would be easier for you. For me, I used MS Excel as shown in the picture. Th x-values are in the first column gathered from the given. I applied the equations to get the f(x) values. As you can see, the pairs matched with the third column. Therefore, the answer is:
f(x) = 2x+3.
For 46 minutes you can use the computer for $23.
Given that, you can rent time on computers at the local copy centre for a $7 setup charge and an additional $1.75 for every 5 minutes.
We need to find how much time can be rented for $23.
<h3>What is a linear equation?</h3>
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant.
Now, every minute charge=1.75/5=$0.35
Let time used be t, so we can write an equation as
7+0.35t=23
Solve the equation for t.
That is, 0.35t=16
⇒t=16/0.35=45.714
⇒t=45.714≈46 minutes
Therefore, for 46 minutes you can use the computer for $23.
To learn more about the linear equation visit:
brainly.com/question/14362668.
#SPJ1
Answer:
Step-by-step explanation:
c !!