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3 years ago

A set of equations is given below:

1 answer:

8 0

If you would like to find a step that can be used to find the solution to the set of equations, you can do this using the following steps:

c = 2d + 1
c = 3d + 5
__________
c = c
2d + 1 = 3d + 5
2d - 3d = 5 - 1
- d = 4
d = -4

The correct result would be 2d + 1 = 3d + 5.

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Find P(C|Y) from the information in the table. To the nearest tenth, P(C|Y) =

seropon [69]

From the definition of conditional probability,

$\mathbb P(C\mid Y)=\dfrac{\mathbb P(C\cap Y)}{\mathbb P(Y)}$

and by the law of total probability,

$\mathbb P(Y)=\mathbb P(Y\cap A)+\mathbb P(Y\cap B)+\mathbb P(Y\cap C)$

In other words, each cell in the grid left of and above the total column and row represents the joint probabilities (e.g. $\mathbb P(X\cap A)=\dfrac{32}{146}$ ). So,

$\mathbb P(C\mid Y)=\dfrac{15}{30}=\dfrac12=0.5$

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2 years ago

If a child's knowledge of the alphabet is limited to the letters a, b, c, i, and e, and if the child writes two letters at rando

prisoha [69]

I'm pretty sure the answer is 3/5, cause vowels are A,E,I,O,U and the leters given are, A,B,C,I,E so there are 5 given letters and out of the five three are vowels, so 3 out of 5 are vowels so 3/5

7 0

2 years ago

Read 2 more answers

Write an equation in point-slope form of the line that passes through the points

Aleksandr-060686 [28]

Hello!

Step-by-step explanation:

Slope: $\frac{Y^2-Y^1}{X^2-X^1}=\frac{rise}{run}$

$\frac{(-2)-(-4)=-2+4=2}{3-2=1}=\frac{2}{1}=2$

Answer: 2

Slope is 2.

Hope this helps!

Thanks!

-Charlie

Have a great day!

4 0

3 years ago

Solve for v. -8(v+7)=3v-23 Simplify your answer as much as possible. v=

aksik [14]

Answer:

v = -3

Step-by-step explanation:

-8(v + 7) = 3v - 23

Expand.

-8v - 56 = 3v - 23

Add -3v and 56 on both sides.

-8v - 56 + 56 - 3v = 3v - 23 + 56 - 3v

-8v - 3v = -23 + 56

Combine like terms.

-11v = 33

Divide -11 into both sides.

-11v/-11 = 33/-11

v = -3

3 0

2 years ago

Read 2 more answers

The diagonals of a quadrilateral bisect at right angles. What type of quadrilateral is this?

arsen [322]

square

Step-by-step explanation:

8 0

2 years ago