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user100 [1]
3 years ago
5

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

Mathematics
1 answer:
My name is Ann [436]3 years ago
4 0

Answer:

w>-20

Step-by-step explanation:

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At a college, 69% of the courses have final exams and 42% of courses require research papers. Suppose that 29% of courses have a
laila [671]

Answer:

a) 0.82

b) 0.18

Step-by-step explanation:

We are given that

P(F)=0.69

P(R)=0.42

P(F and R)=0.29.

a)

P(course has a final exam or a research paper)=P(F or R)=?

P(F or R)=P(F)+P(R)- P(F and R)

P(F or R)=0.69+0.42-0.29

P(F or R)=1.11-0.29

P(F or R)=0.82.

Thus, the the probability that a course has a final exam or a research paper is 0.82.

b)

P( NEITHER of two requirements)=P(F' and R')=?

According to De Morgan's law

P(A' and B')=[P(A or B)]'

P(A' and B')=1-P(A or B)

P(A' and B')=1-0.82

P(A' and B')=0.18

Thus, the probability that a course has NEITHER of these two requirements is 0.18.

3 0
3 years ago
If DE + EF = DF, and ____________, then the point E is the midpoint of .
gogolik [260]
<span>DE=EF  hope I helped with your studies :)

</span>
5 0
3 years ago
find the slope of the line on the graph write your answer as a fraction or a whole number not a mixed number or decimal
Alexandra [31]
The slope is (4,3). You look at the y intercept (where the y axis is crossed by the line) and simply count rise over run until you reach the next point. The next point from the y intercept (-2,0) is (2,3).

-2+4=2
0+3=3

And there you go. In fraction form it’s 4/3.
Hope this helped!
4 0
3 years ago
The coordinate grid below shows triangle ABC and its image after translation, triangle A'B'C': Triangles ABC and A prime B prime
stira [4]

Answer:

the answer is y - 8

Step-by-step explanation:

just makes sense

3 0
3 years ago
Read 2 more answers
A hot air balloon is at elevation of 650 feet. After it descends 120 feet, what is the elevation of the balloon?
SVETLANKA909090 [29]

Answer:

530

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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