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Goryan [66]
3 years ago
5

At an intersection, the red light times are normally distributed with a mean time of 3 minutes and a standard deviation of 0.25

minutes. Approximately what percent of red lights last between 2.5 and 3.5 minutes? (2 points)
Mathematics
1 answer:
VladimirAG [237]3 years ago
3 0

Answer:

95.4%

Step-by-step explanation:

Z(low)=-2 0.022750132

Z(upper)=2 0.977249868

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Four friends order sandwiches for $15, a bottle of juice for $4 and a box of cookies for $3. The friends want to evenly split th
Gelneren [198K]

First, let’s figure out the total amount of money

$15 + $4 + $3 = $22

Okay, so now we know the total amount of money spent, so we can divide

22 ÷ 4 = 5.5

5.5 = $5.50

Here are the expressions:

(15 + 4 + 3) ÷ 22 = 5.5

22 ÷ 4 = 5.5 (or 5.50)

Therefore, each friend owes $5.50

Hope this helps you

-AaronWiseIsBae

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5 0
3 years ago
So I know that |-5| =5 but what does this -|-5| equal? and explain why
valentina_108 [34]
Absolute value
means whatever is inside is positive, once we resolve the inside, work out

|-5|=5

now -5=?=-5

answer is -5 since - of + is negaitve
if you don't get it still think like this

|-5|=5
mulitp;ly by -1 everybody
-|-5|=-5
7 0
3 years ago
An eight character password uses four digits 1-6 and four letters A-Z with repeats allowed. How many possible passwords like thi
Ratling [72]
4 x 8 x 6 x 4 x 26 = 19,968

i think however, i could be wrong. my teacher told me to use the fundamental counting principle. you multiply each different part of the problem.
3 0
4 years ago
Solve 3(2y+4z) in Distributive Property
Rus_ich [418]

Answer:

6y+12z

Step-by-step explanation:

Multiply 3 with the numbers inside the parenthesis

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6    and 12

7 0
3 years ago
Nancy thinks the answer to the question 1/4 divided by -2/3 is 3/8 is next correct explain why or why not be sure to use complet
stiks02 [169]

Answer:

  Her sign is in error. The answer is -3/8.

Step-by-step explanation:

Nancy's answer has the correct magnitude. It is obtained by multiplying 1/4 by -3/2. However, the sign of that product will be negative. Nancy has reported a positive answer, so <em>it is incorrect</em>.

6 0
3 years ago
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