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3 years ago

Write the equation of the line in point slope form. (10 Points)

Mathematics

1 answer:

Katena32 [7]3 years ago

8 0

Answer:

y=-1/4(x-4)+3

Step-by-step explanation:

work is in the picture

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Interest earned in the amount of $2.75

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3 years ago

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A scientist inoculates mice, one at a time, with a disease germ until he finds 3 that have contracted the disease. If the prob

UkoKoshka [18]

Answer:

The probability that 8 mice are required is 0.2428.

Step-by-step explanation:

Given : A scientist inoculates mice, one at a time, with a disease germ until he finds 3 that have contracted the disease. If the probability of contracting the disease is two sevenths.

To find : What is the probability that 8 mice are required? The probability that that 8 mice are required is nothing ?

Solution :

Applying binomial distribution,

$P(X=r)=^nC_r p^rq^{n-r}$

Where, p is the probability of success $p=\frac{2}{7}$

q is the probability of failure q=1-p, $q=1-\frac{2}{7}=\frac{5}{7}$

n is total number of trials n=8

r=3

Substitute the values,

$P(X=3)=^8C_3 (\frac{2}{7})^3 (\frac{5}{7})^{8-3}$

$P(X=3)=\frac{8!}{3!5!}\times \frac{8}{343}\times (\frac{5}{7})^{5}$

$P(X=3)=\frac{8\times 7\times 6}{3\times 2\times 1}\times \frac{8}{343}\times \frac{3125}{16807}$

$P(X=3)=0.2428$

Therefore, the probability that 8 mice are required is 0.2428.

5 0

3 years ago

Find the exact solutions to 2x^2=5x-1 by using the quadratic formula

Luda [366]

Solve the equation for x by finding a , b , and c of the quadratic then applying the quadratic formula

Exact form:

x = 5 ± √ 17

Decimal:

x = 2.28077640 … , 0.21922359

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3 years ago

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I am Lyosha [343]

Area=pi x radius squared so (3.14)(10)squared = 314

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3 years ago

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3/4 W + 8 = 1/3 w – 7

Montano1993 [528]

Answer:

Step-by-step explanation:

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7 0

3 years ago