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zzz [600]
3 years ago
13

PLZ HELP ASAP WILL MARK BRAINLIEST

Mathematics
1 answer:
aksik [14]3 years ago
8 0

Answer:

I’m so sry but can‘t understand it has to be 4/15 7/15 or 2/3.

Step-by-step explanation:

☹️

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A softball pitcher has a 0.507 probability of throwing a strike for each pitch. If the softball pitcher throws 15 pitches, what
Elena L [17]

Answer:

The probability that the pitcher throws exactly 8 strikes out of 15 pitches is approximately 0.199

Step-by-step explanation:

The given probability that the pitcher throws a strike, p = 0.507

The number of pitches thrown by the pitcher = 15 pitches

The probability that the pitcher does not throw a strike, q = 1 - P

∴  q = 1 - 0.507 = 0.493

By binomial theorem, we have;

P(X = r) = \dbinom{n}{r}p^{r} \cdot q^{n-r}=  \dbinom{n}{r}p^{r} \cdot \left (1-p  \right )^{n-r}

When X = r =  8, and n = 15, we get;

The probability that the pitcher throws exactly 8 strikes out of 15 pitches, P(8), is given as follows

P(8) = ₁₅C₈ × 0.507⁸ × (1 - 0.507)⁽¹⁵ ⁻ ⁸⁾ = 6,435 × 0.507⁸ × 0.493⁷ ≈ 0.199

8 0
3 years ago
Difference between dot and cross product
Rashid [163]
If you have two vectors A and B,
Dot product is a scalar quantity dealing with how much of one vector is in the same direction as the other vector, or the projection of one onto the other. You can see that from the cosine part of this form-
A~*~B = [A][B]cos(\theta)

The cross product is a vector perpendicular to both A and B. It deals with how much of one vector is perpendicular to the other vector. You can see that in the sine part of this form -
A ~x ~B= [A][B]sin(\theta)


8 0
3 years ago
you have 12 cards. one out of every 4 cards is faceup. the rest are facedown. how many cards are faceup
umka2103 [35]
3 cards 

1/4 = x/12      1/4 = 3/12 
4 * 3 = 12
1 * 3 = 3
x = 3 
7 0
3 years ago
Solve the equation for y. Then find the value of Y for each value of X.
Hunter-Best [27]

Answer:

y=9-7x

If x= -1, y=16

If x= 0, y=9

If x=2, y= -5

Step-by-step explanation:

Because you are solving the equation for y, you want to have y by itself on one side. The only way to do that in this problem is by subtracting the 7x on both sides.

y+7x=9

-7x -7x ---> y=9-7x

The next part of the question says to find the value of Y for each value of X. Using the given X values, we plug them into the equation we just got in order to find Y.

y=9-7(-1) ----> y=16

y=9-7(0) ----> y=9

y=9-7(2) ----> y=-5

4 0
3 years ago
Read 2 more answers
VLC PIAGeuld Wine
Nookie1986 [14]

Answer:

1

Step-by-step explanation:

The absolute value of 4 is 4 and the absolute value of -3 is 3 so the difference between 4 and 3 is 1.

4 0
3 years ago
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