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Alexeev081 [22]
3 years ago
9

Springdale Junior High has two students, Ashley and Taylor, that qualified for the regional track meet in the 800 meter dash. Th

e final race has only four spots available. Both Ashley and Taylor earned a spot in the final.
Mathematics
1 answer:
Svetach [21]3 years ago
4 0
I assume you want to know a permutation about how many ways they can be in the final set-up.

Order matters, which is why this is a permutation.

Formula: P(n, r) = \frac{n!}{(n-r)!}

where the permutation is n^{P} k, with P for permutation.

Plug in:

4!/(4-2)!
4!/2!
(1 x 2 x 3 x 4)/1 x 2
(3x4)/1
= 12

12 ways.
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Show that x³ + y³ + z³ - 3xyz is a multiple of x+y+z
White raven [17]

x³ + y³ + z³ - 3xyz is a multiple of x+y+z.

<h3>What is a multiple?</h3>

It should be noted that a multiple simply means a number that van be divided by another a certain number if times without a remainder.

Put x + y + z = 0

= x³ + y³ + z³ - 3xyx

= 0(x² + y² + z² - xt - yz - zx)

= x³ + y³ + z³ - 3xyz = 0.

x³ + y³ + z³ = 3xyz

Learn more about multiples on:

brainly.com/question/251701

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7 0
2 years ago
Which equation is y = –3x2 – 12x – 2 rewritten in vertex form?
WARRIOR [948]
Y=-6-12x-2
y=-6-12x-2
y=-8-12x
y=-8-12x
and these are real numbers
7 0
3 years ago
Read 2 more answers
Miya flips a coin and rolls a 6-sided number cube labled 1-6 and records tge outcome. About how many times is she likely to flip
neonofarm [45]

Answer:

4 times

Step-by-step explanation:

Sample space :

6 sided cube = (1, 2, 3, 4, 5, 6)

Coin = (H, T)

Probability = required outcome / Total possible outcomes

Probability of head (H) = P(H) = 1 /2 = 0.5

Probability of 3 = P(3) = 1 /6 = 0.166666

Probability of heads and 3 on a single try = p(H) * p(3) = 0.5 * 0.166666 = 0.083333

Hence, expected number of times this is likely to occur in 48 tries :

0.083333 * 48 = 4

4 0
3 years ago
Find area and perimeter​
alisha [4.7K]

Answer:

Perimeter

P = P1+P2

P1 = 4a           P2=2(a+b)

P1=4*5           P2=2(3+5)

P1=20            P2=2*8

                     P2=16

P = 20+16

P=36

Area

A=A1+A2

A1=a^{2}                 A2=a*b

A1=5^{2}                 A2=3*5

A1=25                A2=15

A=25+15

A=40

5 0
3 years ago
A recipe says to use 2
gulaghasi [49]
You can make 96 cookies
8 0
3 years ago
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