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Alik [6]
3 years ago
13

The life span of a certain bacteria is 22 hours, with a standard deviation of 1.5 hours. In a random sampling of 5,000 bacteria,

how many would you expect survive between 19 and 22 hours
A) 3400
B) 1700
C) 4750
D) 2375
Mathematics
1 answer:
kupik [55]3 years ago
4 0

Answer:

hi!!!!!!!!!!

Step-by-step explanation:

hi!!!!!!!!!

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I need the answer ASAP please.
kondor19780726 [428]

Answer:

Step-by-step explanation:

If 3/4 of the lot was full and the lot holds 1000 vehicles, then there are 3/4(1000) in the lot.  3/4(1000) = 750.  That means there are 750 vehicles in the lot.  If 200 cars are in the lot, then 750 - 200 = 550 trucks.

5 0
3 years ago
7. The diagram shows a regular pentagon inscribed inside the rectangle. Find the values of x, y, and z.
Wewaii [24]
<span>regular pentagon sum of interior = (5 - 2) x 180 = 3 x 180 = 540
so
x = 540 / 5 = 108

180 - 108 = 72
y = 72/2 = 36

z = 180 - 90 - 36
z = 54

answer
x = 108, y = 36 and z = 54</span>
3 0
3 years ago
Solve. 8x + 4 ≤ –20 A. x ≥ –2 B. x ≤ –3 C. x ≥ –3 D. x ≤ –2
marysya [2.9K]
8x+4 \leq - 20 \\ subtract\ 4 \\ 8x \leq -24 \\ divide\ by\ 8\\ \boxed{x \leq -3}
6 0
3 years ago
Read 2 more answers
..............................................................
nadezda [96]

Answer:

form x = 6 ± √14

Step-by-step explanation:

I used mw so I'm sorry if worng

4 0
3 years ago
Let g(x) be a vertical stretch of f(x)=3x-2 by a factor of 4. Write the rule for g(x).
Minchanka [31]
This should be g(x) = 12x - 8, as multiplying 3 by 4 increases the slope.
7 0
3 years ago
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