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3 years ago

Please help me!!! Will get brainliest!!!

Mathematics

2 answers:

erma4kov [3.2K]3 years ago

8 0

The graph does not support the claim.

kaheart [24]3 years ago

4 0

The graph does not support his claim. The vertical scale does not start At 0 which distorts the percent of change.

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What goes into 8 and 18

Lunna [17]

Step-by-step explanation:

common factor 8 and 18 is 2.

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2 years ago

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Factorise p^2 + 30p

Amanda [17]

Answer:

Step-by-step explanation:

hello :

p²+30p = p(p+30)

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3 years ago

Using the compensation strategy. 4,153+2,988

makvit [3.9K]

4,153+2,988
-12 +12
4,141+3,000

3,000+4,000=7,000
7,000+141=7,141

5 0

3 years ago

A particular sale involves four items randomly selected from a large lot that is known to contain 9% defectives. Let X denote th

umka2103 [35]

Answer:

The expected repair cost is $3.73.

Step-by-step explanation:

The random variable X is defined as the number of defectives among the 4 items sold.

The probability of a large lot of items containing defectives is, p = 0.09.

An item is defective irrespective of the others.

The random variable X follows a Binomial distribution with parameters n = 9 and p = 0.09.

The repair cost of the item is given by:

$C=3X^{2}+X+2$

Compute the expected cost of repair as follows:

$E(C)=E(3X^{2}+X+2)$

$=3E(X^{2})+E(X)+2$

Compute the expected value of X as follows:

$E(X)=np$

$=4\times 0.09\\=0.36$

The expected value of X is 0.36.

Compute the variance of X as follows:

$V(X)=np(1-p)$

$=4\times 0.09\times 0.91\\=0.3276\\$

The variance of X is 0.3276.

The variance can also be computed using the formula:

$V(X)=E(Y^{2})-(E(Y))^{2}$

Then the formula of $E(Y^{2})$ is:

$E(Y^{2})=V(X)+(E(Y))^{2}$

Compute the value of $E(Y^{2})$ as follows:

$E(Y^{2})=V(X)+(E(Y))^{2}$

$=0.3276+(0.36)^{2}\\=0.4572$

The expected repair cost is:

$E(C)=3E(X^{2})+E(X)+2$

$=(3\times 0.4572)+0.36+2\\=3.7316\\\approx 3.73$

Thus, the expected repair cost is $3.73.

4 0

3 years ago

Place the following fractions and decimals in order from least to greatest:

maks197457 [2]

Answer:

.09,1/6,1/3,2/5

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers