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denis-greek [22]
2 years ago
5

Which is a part of a line with one endpoint?

Mathematics
2 answers:
valkas [14]2 years ago
4 0

your answer is a ray line.

-Dominant- [34]2 years ago
4 0

The ray is a part of a line with one end point and the other end continues.

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Let g(x) = 3x + 2. If g(x) = 11, what is x?
astraxan [27]

Answer:

3=x

Step-by-step explanation:

11=3x+2

5 0
2 years ago
In a process that manufactures bearings, 90% of the bearings meet a thickness specification. A shipment contains 500 bearings. A
vredina [299]

Answer:

c) P(270≤x≤280)=0.572

d) P(x=280)=0.091

Step-by-step explanation:

The population of bearings have a proportion p=0.90 of satisfactory thickness.

The shipments will be treated as random samples, of size n=500, taken out of the population of bearings.

As the sample size is big, we will model the amount of satisfactory bearings per shipment as a normally distributed variable (if the sample was small, a binomial distirbution would be more precise and appropiate).

The mean of this distribution will be:

\mu_s=np=500*0.90=450

The standard deviation will be:

\sigma_s=\sqrt{np(1-p)}=\sqrt{500*0.90*0.10}=\sqrt{45}=6.7

We can calculate the probability that a shipment is acceptable (at least 440 bearings meet the specification) calculating the z-score for X=440 and then the probability of this z-score:

z=(x-\mu_s)/\sigma_s=(440-450)/6.7=-10/6.7=-1.49\\\\P(z>-1.49)=0.932

Now, we have to create a new sampling distribution for the shipments. The size is n=300 and p=0.932.

The mean of this sampling distribution is:

\mu=np=300*0.932=279.6

The standard deviation will be:

\sigma=\sqrt{np(1-p)}=\sqrt{300*0.932*0.068}=\sqrt{19}=4.36

c) The probability that between 270 and 280 out of 300 shipments are acceptable can be calculated with the z-score and using the continuity factor, as this is modeled as a continuos variable:

P(270\leq x\leq280)=P(269.5

d) The probability that 280 out of 300 shipments are acceptable can be calculated using again the continuity factor correction:

P(X=280)=P(279.5

8 0
3 years ago
If you invest 2,000 today in a bank that gives you a 4 percent annual interest rate, which of these items can you buy in seven y
postnew [5]
I=prt
i=2000 X .04 X 7
i = 560
So you earned 560 after 7 years, plus your 2000 you started with
You can get C
8 0
3 years ago
Read 2 more answers
Slope is -1/2 and y-intercept is -2
miskamm [114]
Y= -1/2x-2
this is the y=mx+b equation of a line.
3 0
3 years ago
What is the coefficient of the term 5/3 xy ?
bija089 [108]
The part the it is multiplying by the placholder (not adding)
example
2+4x
4 is placeholder, 2 is not

x and y are placeholders
5/3 is not
5/3 is the coefient
7 0
2 years ago
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