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Mrrafil [7]
3 years ago
7

Three students out of a group of 10 seniors will be chosen to speak in front of the school. What is the probability that Ben, Ma

rk, and Ty will be chosen?
Mathematics
2 answers:
Ivenika [448]3 years ago
8 0
What can you pick like A B C D
Dmitry_Shevchenko [17]3 years ago
5 0

Answer:

The probability that a randomly chosen person from this group has type B is .

3/25

The probability that a randomly chosen person from this group has type AB is . 1/25

The probability that a randomly chosen person from this group has type B or type AB blood is

4/25

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What is the slope of a line containing (4,6) and (0,8)?
AlladinOne [14]

Answer:

m=\frac{-1}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (4, 6)

Point (0, 8)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{8-6}{0-4}
  2. Subtract:                       m=\frac{2}{-4}
  3. Simplify:                        m=\frac{-1}{2}
3 0
2 years ago
Read 2 more answers
WILL MARK BRAINIEST Bob cannot decide which of two washing machines to buy. The selling price of each is ​$495. The first is mar
sashaice [31]

Answer:

See explanation

Step-by-step explanation:

495*.3= 148.5

<u>346.50</u>

495-99(20%)

396-10%

<u>356.4</u>

The first one is cheaper and the 2nd sucks cux the 20 then 10 means the 10% off is of the 20 and is lower and lower means lesss $ off

3 0
2 years ago
How to differentiate y=x^n using the first principle. In this question, I cannot use the rule of differentiation. I have to do t
Zarrin [17]

By first principles, the derivative is

\displaystyle\lim_{h\to0}\frac{(x+h)^n-x^n}h

Use the binomial theorem to expand the numerator:

(x+h)^n=\displaystyle\sum_{i=0}^n\binom nix^{n-i}h^i=\binom n0x^n+\binom n1x^{n-1}h+\cdots+\binom nnh^n

(x+h)^n=x^n+nx^{n-1}h+\dfrac{n(n-1)}2x^{n-2}h^2+\cdots+nxh^{n-1}+h^n

where

\dbinom nk=\dfrac{n!}{k!(n-k)!}

The first term is eliminated, and the limit is

\displaystyle\lim_{h\to0}\frac{nx^{n-1}h+\dfrac{n(n-1)}2x^{n-2}h^2+\cdots+nxh^{n-1}+h^n}h

A power of h in every term of the numerator cancels with h in the denominator:

\displaystyle\lim_{h\to0}\left(nx^{n-1}+\dfrac{n(n-1)}2x^{n-2}h+\cdots+nxh^{n-2}+h^{n-1}\right)

Finally, each term containing h approaches 0 as h\to0, and the derivative is

y=x^n\implies y'=nx^{n-1}

4 0
3 years ago
Help plz math is my worst subject i have a lot of over due work
zubka84 [21]
I believe the answer is the first option. 1 to 3 with intervals of 1.
Hope this helps!

5 0
3 years ago
1.dilate by 3/5 : (20,10)
inysia [295]

Answer:

a) )12,6)

b) (12,2)

c) (4,-7)

d) (9,-7)

Step-by-step explanation:

a) Dilation

When we dilate, we multiply the given scale factor by each of the coordinates

We have this as follows;

(20 * 3/5, 10 * 3/5) = (12, 6)

2. Here, we will add 5 to the x-axis value and subtract 6 from the y-axis value

We have this as;

(7+ 5, 8-6) = (12,2)

3. By reflecting across the x-axis

we have (x,y) changing to (x,-y)

so we have ;

(4,7) becomes (4,-7)

4. Rotation by 270 degrees (7,9)

If clockwise;

(x,y) becomes (y,-x)

so we have

(7,9) becoming (9,-7)

4 0
3 years ago
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