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HACTEHA [7]
3 years ago
8

The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of 0.4 minute

s. What is the probability that an interaction lasts longer than 4 minutes?
Mathematics
1 answer:
attashe74 [19]3 years ago
3 0
Z = (4 - 3)/.4
z = 1/.4
z = 2.5
.0062
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Which of the following expressions is not equivalent to -4.5 • -8?
denpristay [2]

Answer: (8)(-4.5)

Step-by-step explanation:

If you were to multiply-4.5 • -8 that would equal a positive number but if you were to divide (8)(-4.5) it would equal a negative number

3 0
3 years ago
Read 2 more answers
1/4 divided by 7/16 give an example of real world situation that might involve this expression
Volgvan

Answer:

Step-by-step explanation:

if you have 1/4 of a rope and you need to give 7/16 to your friend how much rope did you give to your friend?

3 0
4 years ago
A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?
aliina [53]

Answer:

41 units

Step-by-step explanation:

Rectangles have right angles, so we can use Pythagorean theorem to find the diagonal.

c² = a² + b²

c² = 9² + 40²

c² = 81 + 1600

c² = 1681

c = 41

4 0
3 years ago
Is this answer correct?
hodyreva [135]

Answer:

No

Step-by-step explanation:

How to solve :

(a-4)/(a^2+8a+12)*(a^2-2a-48)/(a^2+4a-32)

Factor:

a^2+8a+12 = (a+6)(a+2)

a^2-2a-48 = (a-8)(a+6)

a^2+4a-32 = (a+8)(a-4)

simplify a+6, and a-4

you are left with (a-8)/(a+2)(a+8) = (a-8)/(a^2+10x+16)

8 0
3 years ago
What is fractions equivalent by 8/3
frez [133]
Some fractions equivalent to 8/3 are 16/6, 24/9, and 32/12.
3 0
3 years ago
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