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julsineya [31]
3 years ago
8

) At a certain college, students are allowed to choose between online and in-person learning. 70% of the students choose online

learning and 30% choose to come to campus for in-person instruction. Assume that the probability that a person studying online will contract the coronavirus is .02 and the probability that a person attending class in-person contracts the virus is .35 . (a) What is the probability that a person attending this college (either online or in-person) will contract the virus
Mathematics
1 answer:
lubasha [3.4K]3 years ago
4 0

Answer:

Probability = 0.119

Step-by-step explanation:

P (Coronavirus) = P(Person online & corona) or P(Person offline & corona)

(0.70 x 0.02) + (0.30 x 0.35)

0.014 + 0.105

0.119

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5.
e-lub [12.9K]

Answer:

C. 24pi cu ft.

Step-by-step explanation:

The equation to find the volume of a cone is v=pi r^2 h/3. So, just substitute the given information to the equation:

pi=3.14; r=6; h=2

V= pi 6^2 2/3  >   V= pi(36) 2/3  > V=113.04 2/3 > V=75.36

Then you can go through all the answers and multiply them by 3.14.

6* 3.14=18.84;  A is wrong

18* 3.14=56.52; B is wrong

24* 3.14=75.36; C is correct

48* 3.14=150.72;  D is wrong

Now we know that the answer is C. 24pi cu ft.

5 0
3 years ago
((9-7)x5)-7+<br>order of operations
OlgaM077 [116]
((9-7)×5)-7

first PEMDAS
(9-7)= 2
multiply by 5
5×2=10

(10)-7= 3
7 0
3 years ago
Read 2 more answers
PLZZ HELP I NEED AN EXPERT ANSWER
Sav [38]
The equation of a line is y = mx + b


We know there is a b because the y intercept is not zero, so the first choice is wrong. We also know the last choice is wrong because this problem definitely has a slope (m).


The slope of the line of best fit seems to be closest to 3.25, meaning it goes up about that much for every one unit it goes to the right.


The second choice is correct.
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=x-7%20%3D%2010" id="TexFormula1" title="x-7 = 10" alt="x-7 = 10" align="absmiddle" class="late
Artist 52 [7]

Answer:

This is your answer <( ̄︶ ̄)↗

Step-by-step explanation:

.

.

plz mark me a brainlist..

#hope it helps you..

(◕ᴗ◕)

3 0
3 years ago
Read 2 more answers
For the functions f(x)=−7x2−x and g(x)=9x2−4x, find (f−g)(x) and (f−g)(1).
siniylev [52]

Step-by-step explanation:

f(x) = -7x² - x

g(x) = 9x² - 4x

(f - g)(x) = (-7x² - x) - (9x² - 4x)

(f - g)(x) = (-7x² - 9x²) + (-x + 4x)

(f - g)(x) = -16x² + 3x

(f - g)(1) = -16(1)² + 3(1)

(f - g)(1) = -16.1 + 3

(f - g)(1) = -16 + 3

(f - g)(1) = -13

6 0
3 years ago
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