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Dvinal [7]
3 years ago
15

F(4)=2(4)+3how do u solved this problem

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0
2(4)+3= 11 so take 11 divided by 4 = 2.75 F=2.75
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Bobby is testing the effectiveness of a new cough medication. There are 100 people with a cough in the study. Seventy patients r
Tresset [83]

Answer:

0.665

Step-by-step explanation:

Given:  100 people are split into two groups 70 and 30.  I group is given cough syrup treatment but second group did not.

Prob for a person to be in the cough medication group = 0.70

Out of people who received medication, 34% did not have cough

Prob for a person to be in cough medication and did not have cough

=\frac{0.70(34)}{60}=0.397


Prob for a person to be not in cough medication and did not have cough

=\frac{0.3(20)}{30}=0.20

Probability for a person not to have cough

= P(M1C')+P(M2C')

where M1 = event of having medication and M2 = not having medication and C' not having cough

This is because M1 and M2 are mutually exclusive and exhaustive

SO P(C') = 0.397+0.2=0.597

Hence required prob =P(M1/C') = \frac{0.397}{0.597}=0.665

4 0
3 years ago
Read 2 more answers
Please help me!!! (Can you also explain)
Romashka-Z-Leto [24]

Answer:

$3600 per year into savings

Step-by-step explanation:

He makes 1500 dollars a month

1/5 of that goes into saving

1/5*1500 = 300

300 per month goes into savings

We want to know how much goes into savings per year

There are 12 months in a year, so we need to multiply by 12

300 per month * 12 months/ year = 3600  per year

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5 0
3 years ago
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Help againnnnnnnnnnnnnnnnnnnnnnnnn
Alexeev081 [22]

Answer:

<h2>10 inches</h2>

Step-by-step explanation:

Hypotenuse = h

h^2 = 8^2 + 6^2

h^2 = 64 + 36

h^2 = 100

h = √100

h = 10

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

4 0
3 years ago
Joseph walks at a constant speed. He walked to a store that is 0.5 miles away in 6 minutes. How many miles, m, can he walk in t
pshichka [43]

Answer:

Step-by-step explanation:

if he can walk 0.5 miles in 6 minutes at a constant rate then you can say that he can walk 1 mile in 12 minutes.

therefore he can walk 1/12 mile ever one minute

so m=1/12t

7 0
2 years ago
I have a question for you
egoroff_w [7]

Answer:

10 5/6

Step-by-step explanation:

First we have to make 2 1/6 into an improper fraction. This can be rewritten as 13/6. Now, we can multiply 13 by 5 and get 65/6. If we re-convert this into a mixed number, 6 goes into 65 10 times with a remainder of 5, so the final answer is 10 5/6.

4 0
3 years ago
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