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3 years ago

Which of the following are points are solutions to the equation 3x-4y-8=12 ? Select all that apply.

Mathematics

1 answer:

Greeley [361]3 years ago

7 0

(0,5)
(4,-2)
(-16,17)

just substitute the x and y values from each coordinate into the equation

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ASAP please help with math thanks

fomenos

Answer:

2: 6,8

Step-by-step explanation:

2) Look at the range from 6-8 then look at the frequency. The frequency is the highest so that is the most frequent range that they scored in.

I apologise for only answering one question. I don't have access to paper rn and this is hard stuff to do in my head.

5 0

3 years ago

|v+8| -5=2 Help please

Galina-37 [17]

Answer:

v= -1 (BRAINLIEST PLEASE)

Step-by-step explanation:

|v+8| -5=2

Add 5 to each side

|v+8| -5=2

+5= +5

Now you have |v+8|= 7

So what plus 8 equals 7?

-1

so now you have |-1+8| which is 7

so v= -1

3 0

4 years ago

Solve the following formula for m C = amt m = Answer as expression

d1i1m1o1n [39]

M=c/at

Divide both sides by a and t to isolate m. Then the solution is just m=c/at

4 0

3 years ago

Write the relation as a set of ordered pairs.

ankoles [38]

Answer:

option B is the answer.

7 0

3 years ago

Assume that a policyholder is four times more likely to file exactly two claims as to file exactly three claims. Assume also tha

kykrilka [37]

Answer:

1.3125

Step-by-step explanation:

Given that our random variable $X$ follows a Poisson distribution $P(X=k)=\frac{\lambda^k e^-^p}{k!} \ \ \ \ \ \ \ \ p=\lambda$

Evaluate the formula at $k=2,3:$

$P(X=2)=0.5\lambda^2e^{-\lambda}\\\\P(X=3)=\frac{1}{6}\lambda^2e^{-\lambda}$

#since

$4P(X=2)=P(X=3);\\\\0.5\lambda^2e^{-\lambda}=4\times\frac{1}{6}\lambda^3e^{-\lambda}\\\\0.5\lambda^2=\frac{2}{3}\lambda^3\\\\0.75=\lambda$

The mean and variance of the Poisson distributed random variable is equal to $\lambda$ :

$\mu=\lambda=0.75\\\sigma ^2=\lambda=0.75$

#By property variance:

$\sigma ^2=V(X)=E(X^2)-(E(X))^2=E(X^2)\\\\E(X^2)=\sigma^2+\mu^2=0.75+0.75^2=1.3125$

The expectation is 1.3125

4 0

4 years ago