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3 years ago

2. In how many ways can five people line up at a bank teller's window?

2 answers:

7 0

The first person can move 5 positions since he is first. The second person can move 4 positions since one is already occupied, and so on...

OLga [1]3 years ago

5 0

<span>5 x 4 x 3 x 2 x 1 = 120

The first person can move 5 positions since he is first. The second person can move 4 positions since one is already occupied, and so on...</span><span />

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Uwu hi pls help! if you dont ill cry an bad sad :''((

ruslelena [56]

Answer:

The second choice

Step-by-step explanation:

6 - 3 1/3 = 2 2/3

5 0

4 years ago

when draining her hot tub, the height of the water in Brittany's hot tub decreases at a rate of 2 inches per minute. After 9 min

Alla [95]

$h-11=-2(t-9)$

$h=-2t+18+11$

$h=-2t+29$

8 0

4 years ago

There are 42 students 21 are in 7th grade 14 are in 8th 7 are in ninth whats the probability of an eighth grader winning

Varvara68 [4.7K]

Answer:

The probability of an eighth grader winning is 1/3

Step-by-step explanation:

Total no. of students = 42

Number of students in 7th grade = 21

Number of students in 8th grade = 14

Number of students in 9th grade = 7

Probability of event = $\frac{\text{Favorable outcomes}}{\text{Total outcomes}}$

So,the probability of an eighth grader winning= $\frac{14}{42}=\frac{2}{6}=\frac{1}{3}$

Hence The probability of an eighth grader winning is 1/3

3 0

3 years ago

Plsss help quick three question

yKpoI14uk [10]

Answer:

1) A

2) min; min; max; max

3) y = x² + 5x - 3

Step-by-step explanation:

f(x) = x² + 2(x)(5) + 5² - 5² + 24

f(x) = (x + 5)² - 25 + 24

f(x) = (x + 5)² - 1

In ax² + bx + c,

if a > 0, it's a min

if a < 0, it's a max

y = ax² + bx + c

Using (0,-3)

-3 = a(0)² + b(0) + c

c = -3

y = ax² + bx - 3

Using (1,3)

3 = a + b - 3

a + b = 6

Using (-1,-7)

-7 = a(-1)² + b(-1) - 3

-7 + 3 = a - b

a - b = -4

b = a + 4

a + (a + 4) = 6

2a = 2

a = 1

b = 5

y = x² + 5x - 3

7 0

3 years ago

Thirty six and nine thousandths is less than greater than or equal

Gnom [1K]

36 is greater than 0.009

6 0

3 years ago