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3 years ago

Solve for x: 4(x-5) 8 =9y x = [?]y+[ ]

Mathematics

1 answer:

Katarina [22]3 years ago

3 0

Answer:

Step-by-step explanation:

Ok so this is it, then:

$\frac{4(x-5)}{8}=9y$ First distribute the 4 into the parenthesis to get rid of them. This gives you:

$\frac{4x-20}{8}=9y$ Now undo the division of 8 by multiplying both sides by 8 to get:

4x - 20 = 72y Add 20 to both sides to get:

4x = 92y so

x = 23y

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The probability that an egg on a production line is cracked is 0.01. Two eggs are selected at random from the production line. F

musickatia [10]

Answer:

$P(X \geq 1)=1-P(X$

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

Step-by-step explanation:

Let X the random variable of interest "number of craked eggs", on this case we now that:

$X \sim Binom(n=2, p=0.01)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(x \geq 1)=1-P(X$

And we can find the probability:

$P(X=0)=(2C0)(0.01)^0 (1-0.01)^{2-0}=0.9801$

And replacing we got:

$P(X \geq 1) = 1-0.9801 = 0.0199$

5 0

3 years ago

What is the decimal of 1/2

vodomira [7]

Answer:

Step-by-step explanation:

1 half of any thing is 50 percent and 50 percent is written as a decimal when you move the decimal point twice to the left giving you .5

6 0

3 years ago

Read 2 more answers

The circumference of a circle is 29.83 cm. What are the radius and diameter, respectively? Use 3.14 for pi.

nasty-shy [4]

Answer:

Diameter: 9.5

Radius: 4.75

Step-by-step explanation:

To find the diameter you divide the circumference by pi(3.14) and to find radius you divide the diameter by 2 since the radius is half of the diameter.

Hope this helps you

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2 years ago

How long will it take $3000 to earn $900 interest at 6% simple interest?

a_sh-v [17]

Answer:

5 years

Step-by-step explanation:

3000x.06=180 interest per year.

900/180 =5 years to earn 900 interest.

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3 years ago

Please help me: Ten athletes ran two races of the same length. The scatter plot shows their times. Identify each of these statem

Lemur [1.5K]

The scatter plot has been attached

Answer:

Options C, D & E are true

Step-by-step explanation:

Option A is wrong because from the scatter plot, only four athletes were faster in the second race than in the first one.

Option B is wrong because only 1 athlete had his second race time differing from the first race time by exactly 2 seconds.

Option C is true because exactly 9 of the times for the first race were at least 16 seconds

Option D is true because there are exactly 3 athletes who had the same time in both races

Option E is true because 8 of the times for the second race were less than 17 seconds

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3 years ago