Makayla is teaching Rodney how to construct a square inscribed in a circle.

Given f(x) = -x +6, Evaluate f(x) for X= -1 and 3 and 5<br> Range:

Maurinko [17]

Answer:

f(x) for x = -1 is -1+6= 5

f(x) for x = 3 is -3+6= 3

f(x) for x = 5 is -5+6= 1

7 0

3 years ago

What is are indices

White raven [17]

Answer:

The index of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number. In this example: 82 = 8 × 8 = 64. The plural of index is indices. (Other names for index are exponent or power.)

Step-by-step explanation:

8 0

4 years ago

Kanu and Ikedi shared 270 in such a way that 2/5 of Ikedi's share is equal to 1/2 of kanu's. Find their shares.

Leviafan [203]

Answer:

Step-by-step explanation:

We'll solve this with a system of equations. The first equation says that K's shares plus I's shares total 270; therefore,

K + I = 270

The second equation talks about the ratios of their shares.

2/5 I = 1/2 K We'll solve for K by multiplying both sides by 2:

4/5 I = K Now we'll sub that in for K to the first equation:

$\frac{4}{5}I+I=270$ and

$\frac{4}{5}I+\frac{5}{5}I=270$ and

$\frac{9}{5}I=270$ Now we'll solve for I, the number of shares that Ikedi has. Multiply both sides by 5 to get

$9I=1350$ then divide both sides by 9 to get

$I=150$

Ikedi has 150 shares. Sub that back into the first equation to solve for K:

K + 150 = 270 so

K = 120

5 0

3 years ago

What is the exact volume of the cylinder? height 9 in. width 6 in.

boyakko [2]

Volume equals pi times r squared times height So it would be 81pi in cubed

3 0

3 years ago

Read 2 more answers

A manufacturer of computer memory chips produces chips in lots of 1000. If nothing has gone wrong in the manufacturing process,

Anastasy [175]

Step-by-step explanation:

A manufacturer of computer memory chips produces chips in lots of 1000. If nothing has gone wrong in the manufacturing process, at most 7 chips each lot would be defective, but if something does go wrong, there could be far more defective chips. If something goes wrong with a given lot, they discard the entire lot. It would be prohibitively expensive to test every chip in every lot, so they want to make the decision of whether or not to discard a given lot on the basis of the number of defective chips in a simple random sample. They decide they can afford to test 100 chips from each lot. You are hired as their statistician.

There is a tradeoff between the cost of eroneously discarding a good lot, and the cost of warranty claims if a bad lot is sold. The next few problems refer to this scenario.

Problem 8. (Continues previous problem.) A type I error occurs if (Q12)

Problem 9. (Continues previous problem.) A type II error occurs if (Q13)

Problem 10. (Continues previous problem.) Under the null hypothesis, the number of defective chips in a simple random sample of size 100 has a (Q14) distribution, with parameters (Q15)

Problem 11. (Continues previous problem.) To have a chance of at most 2% of discarding a lot given that the lot is good, the test should reject if the number of defectives in the sample of size 100 is greater than or equal to (Q16)

Problem 12. (Continues previous problem.) In that case, the chance of rejecting the lot if it really has 50 defective chips is (Q17)

Problem 13. (Continues previous problem.) In the long run, the fraction of lots with 7 defectives that will get discarded erroneously by this test is (Q18)

Problem 14. (Continues previous problem.) The smallest number of defectives in the lot for which this test has at least a 98% chance of correctly detecting that the lot was bad is (Q19)

(Continues previous problem.) Suppose that whether or not a lot is good is random, that the long-run fraction of lots that are good is 95%, and that whether each lot is good is independent of whether any other lot or lots are good. Assume that the sample drawn from a lot is independent of whether the lot is good or bad. To simplify the problem even more, assume that good lots contain exactly 7 defective chips, and that bad lots contain exactly 50 defective chips.

Problem 15. (Continues previous problem.) The number of lots the manufacturer has to produce to get one good lot that is not rejected by the test has a (Q20) distribution, with parameters (Q21)

Problem 16. (Continues previous problem.) The expected number of lots the manufacturer must make to get one good lot that is not rejected by the test is (Q22)

Problem 17. (Continues previous problem.) With this test and this mix of good and bad lots, among the lots that pass the test, the long-run fraction of lots that are actually bad is (Q23)

8 0

3 years ago