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3 years ago

How do you find the y-intercept(b) from the graph? It doesn’t show all values.

Mathematics

1 answer:

Umnica [9.8K]3 years ago

5 0

Answer:

the answer is 42.

Step-by-step explanation:

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lucas and mateus have been collecting coins they find on the ground. lucas has $3.23 and mateus has $2.87. how much less money d

shutvik [7]

Answer:

36¢

Step-by-step explanation:

$3.23 -2.87 = $0.36 = 36¢

___

"How much less" one number is than another is found by finding their difference. That is, you do a subtraction. If you can't do this in your head, your calculator can help. There are 100 cents in one dollar.

6 0

3 years ago

What is the value of 2021 − 2223 + 2425 ? ?

Amanda [17]

Answer:

2223

Step-by-step explanation:

We need to find the value of 2021-2223+2425.

Firstly subtract 2223 from 2021.

2021-2223 = -202

Now add -202 and 2425. So,

2425 +(-202) = 2223

So, the value of 2021-2223+2425 is 2223. Hence, this is the required solution.

3 0

3 years ago

Write the sum of the numbers as the productof their gcf and another sum 32+20 and 18+27

kaheart [24]

32+20=52
18+27=45
52+45=97

4 0

3 years ago

Read 2 more answers

You flipped a coin 65 times, and it landed heads side up 37 times. What is the experimental probability of it landing tails side

Zigmanuir [339]

It will always be a 50% chance. theres only two sides and it will always land on 1 of the two sides

7 0

3 years ago

A system has one each of two different types of components in joint operation. Let X and Y denote the random lengths of the live

RSB [31]

Answer:

The value of E(Y/X) is 2.

Step-by-step explanation:

As the complete question is not given, thus the complete question is found online and is attached herewith.

So the joint density function is given as

$f(x,y)=\left \{ {{\dfrac{x}{8}e^{-\dfrac{x+y}{2}} \,\,\,\,0 \leq x,0\leq y \atop {0}} \right.$

So the marginal function for X is given as

$f_x=\int\limits^{\infty}_0 {f(x,y)} \, dy\\f_x=\int\limits^{\infty}_0 \dfrac{x}{8}e^{-\frac{x+y}{2} }dy\\f_x=\int\limits^{\infty}_0 \dfrac{x}{8}e^{-\frac{x}{2}}e^{-\frac{y}{2} }dy\\f_x= \dfrac{x}{8}e^{-\frac{x}{2}}\int\limits^{\infty}_0e^{-\frac{y}{2} }dy\\f_x= \dfrac{x}{4}e^{-\frac{x}{2}}$

Now

$f(Y/X)=\dfrac{f(X,Y)}{f(X)}\\f(Y/X)=\dfrac{\dfrac{x}{8}e^{-\frac{x+y}{2} }}{\dfrac{x}{4}e^{-\frac{x}{2}}}\\f(Y/X)=\dfrac{1}{2}e^{-\frac{y}{2} }$

Now the value of E(Y/X) is given as

$E(Y/X)=\int\limits^{\infty}_0 {yf_{Y/X}} \, dy \\E(Y/X)=\int\limits^{\infty}_0 {y\dfrac{1}{2}e^{-\frac{y}{2} } }\, dy\\E(Y/X)=\dfrac{1}{2}\dfrac{\sqrt{2}}{(\dfrac{1}{2})^2}=2$

So the value of E(Y/X) is 2.

3 0

3 years ago