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defon
3 years ago
11

HELPPPPPPP PLEASEEEEEEEEEEE

Mathematics
1 answer:
Inessa [10]3 years ago
8 0

Answer:

y=-1

Step-by-step explanation:

it is a straight line graph with no gradient therefore no X value. It crosses the y axis at -1

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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
Help, Perhaps? this one has me kinda stumped, i know its prob easy, im just not to big brain rn lol :Sweat_emoji:
Naddika [18.5K]

Answer:

Step-by-step explanation:

g

4 0
3 years ago
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What’s the answer 6x=4x+140
dmitriy555 [2]
1) given 6x = 4x + 140

2) subtract 4x from both sides => 6x - 4x = 4x - 4x + 140

=> 2x = 140

3) divide both members by 2 => 2x / 2 = 140 / 2

=> x = 70

4) Answer: x = 70
6 0
3 years ago
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I need the answerrrr asappppp
Tresset [83]

Answer:

48 inch

Step-by-step explanation:

7 0
3 years ago
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I need glow thank you appreciated
garri49 [273]

D bc it needs to have a y intercept of -1

4 0
3 years ago
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