1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maw [93]
3 years ago
15

Pls help im 9 yrs old i need help first to answer i give brainliest

Mathematics
1 answer:
Aleks04 [339]3 years ago
8 0

Answer:

a = 1

Step-by-step explanation:

You might be interested in
Billy bought 59+45.87+131.39 how much did he spend .
Kisachek [45]
The answer is 236.26
3 0
2 years ago
Read 2 more answers
A manufacturer of computer printers purchases plastic ink cartridges from a vendor. When a large shipment is received, a random
g100num [7]

Answer:

97.4% probability

Step-by-step explanation:

Since there is only two possible outcome of inspecting the catridge : either defective or not, we can solve the problem using the binomial probability distribution (approximated to normal).

To approximate the binomial probability to normal, we find the expected value and the standard deviation of the probability of exactly x sucesses on n repeated trials with p probability

Expected values E(X) = np

Standard deviation √V(X) = √np(1-p)

using the z-score formula (X - μ)/σ, we can solve normally distributed problem.

Where μ is the mean and σ is the standard deviation. The Z-score is is the measure of how much a sample is from the mean. The p-value associated with this z-score which is the probability that the value of the measure is smaller than X can be checked on the z-score table.

FOR THIS QUESTION,

a random sample of 200 cartridges is selected

n = 200

Therefore If there are more than 0.02 × 200 = 4 defective, the sample will be returned.

To determine the approximate probability that a shipment will be returned if the true proportion of defective cartridges in the shipment is 0.05

μ = E(X)

= 0.05 × 200 = 10

σ = √V(X) = √np(1-p)

= √200 × 0.05 × 0.95

= 3.08

This probability is 1 subtracted by the pvalue of Z when X =4

Z = (X - μ)/σ

Z= (4 - 10)/3.08

Z = -1.95

Z = -1.95 has a P-value of 0.026 (on the z-score table)

This means that there is a 1 - 0.026 = 0.974

= 97.4% probability that a shipment will be returned if the true proportion of defective cartridges in the shipment is 0.05.

6 0
3 years ago
What is the undefined variable in this equation (6x2 +3x) ÷ (3x) simplified 3x + 1
ozzi
X is the undefined variable hope it helps

4 0
3 years ago
A large container holds 5 gallons of water. it begins leaking at a constant rate. After 10 minutes the container has 3 gallons o
dolphi86 [110]
First we have to find how much water leaked
5galllons-3 gallons=2 galllos of water leaked
Now we know\frac{2 galllons}{10 minutes}
Finally we can simplify it\frac{2 gallons}{10 minutes}= \frac{1 gallon}{5 minutes} - its the answer
7 0
3 years ago
Which is the slope of the line that passes through the points (3,5) and (8, 7)?
Rainbow [258]

The answer would be 2/5 because you have to put in a slope equation which gives you your answer.

3 0
3 years ago
Read 2 more answers
Other questions:
  • If sin theta = 4/5 and cos theta is in quadrant II, then cos theta and tan theta equal what?​
    14·2 answers
  • Chen completed the division problem below.
    6·2 answers
  • The circulation time of a mammal (the average time it takes for all the blood in the body to circulate once and return to the he
    6·2 answers
  • Create a question like
    9·1 answer
  • If you guys know answer pls
    13·1 answer
  • Square pyramid A and square pyramid B are similar. Their respective heights are 6 and 15 inches. The volume of pyramid B is 312.
    9·1 answer
  • PLEASE HELP! MATHS ​
    7·1 answer
  • What is the answer for 7÷ 4/5
    9·2 answers
  • What percent of 4c in each expression? <br> *2a
    13·1 answer
  • Find the common ratio for the geometric sequence defined by the formula: an=40(2‾√)n−1 a n = 40 ( 2 ) n − 1
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!