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Gelneren [198K]
2 years ago
13

Suppose you have four extra tickets to a football game and you are trying to determine which of your five closest friends to tak

e with you: Mark, Samuel, Elizabeth, James, and Mary. You decided to randomly choose four of them to attend the game with you. What is the probability that you will choose at least one friend whose name starts with the letter M?
a) 0
b) 2/5
c) 4/5
d) 1
e) 2
Mathematics
1 answer:
schepotkina [342]2 years ago
5 0

Answer:

b

Step-by-step explanation:

There are two names that start with the letter M.

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Parallel line angles (transformation) prove it
Step2247 [10]

Transversal line :

A transversal line is one that crosses two or more lines at different points.

Transversal Properties :

  • Each pair of corresponding angles when a transversal cuts two parallel lines are equal in size.
  • Each pair of alternate interior angles created by a transversal when two parallel lines are cut are equal.
  • If two parallel lines are cut by a transversal, then each pair of interior angles on the same side of the transversal are supplementary, i.e. they add up to 180 degrees

    Each pair of corresponding angles when a transversal intersects two parallel lines is equal. Thus,

∠1 = ∠6

∠4 = ∠8

∠2 = ∠5

∠3 = ∠7  

Each alternate interior angle pair is equal if a transversal intersects two parallel lines.

∠4 = ∠5

∠3 = ∠6

Hence, proved..

Learn more about transversal here:

brainly.com/question/17987539

#SPJ9

8 0
8 months ago
Find the zeros of the function.<br>9x^2-36=0<br>I've gotten half way right up to<br>9(x^2-4)=0​
Airida [17]

Answer:

x = ±2

Step-by-step explanation:

9x^2-36=0

Using the square root property

9x^2 = 36

Divide each side by 9

x^2 = 4

Take the square root of each side

sqrt(x^2) = sqrt(4)

x = ±2

7 0
2 years ago
At a small private college 9 / 20 of the students are female if there are 2160 female students how many male students
drek231 [11]

Answer:

4800

Step-by-step explanation:

x is the number of total students

x * 9/20 = number of female students

x * 9/20 = 2160

Multiply each side by 20/9

x * 9/20 * 20/9 = 2160 * 20/9

x =4800

8 0
3 years ago
Please help me with the below question.
VMariaS [17]

By letting

y = \displaystyle \sum_{n=0}^\infty c_n x^{n+r}

we get derivatives

y' = \displaystyle \sum_{n=0}^\infty (n+r) c_n x^{n+r-1}

y'' = \displaystyle \sum_{n=0}^\infty (n+r) (n+r-1) c_n x^{n+r-2}

a) Substitute these into the differential equation. After a lot of simplification, the equation reduces to

5r(r-1) c_0 x^{r-1} + \displaystyle \sum_{n=1}^\infty \bigg( (n+r+1) c_n + (n + r + 1) (5n + 5r + 1) c_{n+1} \bigg) x^{n+r} = 0

Examine the lowest degree term \left(x^{r-1}\right), which gives rise to the indicial equation,

5r (r - 1) + r = 0 \implies 5r^2 - 4r = r (5r - 4) = 0

with roots at r = 0 and r = 4/5.

b) The recurrence for the coefficients c_k is

(k+r+1) c_k + (k + r + 1) (5k + 5r + 1) c_{k+1} = 0 \implies c_{k+1} = -\dfrac{c_k}{5k+5r+1}

so that with r = 4/5, the coefficients are governed by

c_{k+1} = -\dfrac{c_k}{5k+5} \implies \boxed{g(k) = -\dfrac1{5k+5}}

c) Starting with c_0=1, we find

c_1 = -\dfrac{c_0}5 = -\dfrac15

c_2 = -\dfrac{c_1}{10} = \dfrac1{50}

so that the first three terms of the solution are

\displaystyle \sum_{n=0}^2 c_n x^{n + 4/5} = \boxed{x^{4/5} - \dfrac15 x^{9/5} + \frac1{50} x^{13/5}}

4 0
2 years ago
The Central Limit Theorem (CLT) implies that:A) the mean follows the same distribution as the population.B) the population will
Lana71 [14]

Answer:

C

Step-by-step explanation:

The Central Limit Theorem (CLT) implies that the distribution of the mean is approximately normal for large n. I.e. the distribution of the population means will be approximately normally distributed, and provided there is a large sample of the population.

8 0
3 years ago
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