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3 years ago

13

Carla can choose two of her three pairs of sneakers to take to a track meet. If the pairs of sneakers are called A, B, and C, wh

ich choice represents the sample space, S, for the event?

1 answer:

iren2701 [21]3 years ago

3 0

Answer:

s= {AB,AC,BC} edge. 2020

Step-by-step explanation:

i just did the question and it was correct

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Please help, will give 5 stars

Alexus [3.1K]

Function 1
rate of change = (80-100)/(2-1) = -20
y = -20x + 120

function 2
y = -18x + 120
rate of change = -18

answer
function 2 shows a greater rate of change

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3 years ago

I need help I’m on my last questionnn

LenKa [72]

Answer:

7.3 in

Step-by-step explanation:

Area of triangle = (1/2) *b*h

27 = (1/2) * x^2

54 = x^2

square root (54) = x

x=> 7.3484....

Rounding off to 1 decimal place, you get 7.3 in.

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2 years ago

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27. In the figure, AFJD, BGFE, CHGA, DIHB and EJIC are straight lines.<br> Find a + b + C + d + e.

aalyn [17]

It is just asking to find the sum of interior angles
So follow this rule 180(n-2)
180(5-2)
180(3)= 540
So in another words: a+b+c+d+e=540

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3 years ago

Help with solving simulatenous equations with 1 quadratic . question attached

yuradex [85]

Answer:

x = 1/2, y = 17/2

x = -3, y = 12

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3 years ago

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Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2

r-ruslan [8.4K]

Answer:

The value of given expression is $\frac{21}{128}$ .

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

$q=1-p=1-\frac{1}{2}=\frac{1}{2}$

The given expression is

$C(n,x)p^xq^{n-x}$

It can be written as

$^nC_xp^xq^{n-x}$

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

$^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}$

$\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}$

$\frac{7!}{2!5!}(\frac{1}{2})^{2+5}$

$\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}$

$21(\frac{1}{2})^{7}$

$\frac{21}{128}$

Therefore the value of given expression is $\frac{21}{128}$ .

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3 years ago