Evaluate the expression solve for s = -1

Mathematics

2 answers:

Vadim26 [7]3 years ago

6 0

Answer:47.3 ( i think I am a first grader)

Step-by-step explanation: so if s = -1 then 48 times -1 is -48 32 s = positive 32 because it is really . . .32.7+ - 32s :negative negative is a positive 32. then you just solve normally :)

Stels [109]3 years ago

5 0

Answer:

16.7

Step-by-step explanation:

48(-1) + 32.7 - 32(-1)

-48+32.7+32

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The table shows the results of a poll of 200 randomly selected juniors and seniors who were asked if they attended prom. Find th

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Answer:

(a) $\frac{7}{25}$

(b) $\frac{19}{116}$

Step-by-step explanation:

Number of juniors who attended prom,n(J)=28

Number of seniors who attended prom,n(S)=97

Total of those who attended prom=125

Number of juniors who did not attend prom,n(J')=56

Number of seniors who did not attend prom,n(S')=19

Total of those who attended prom=75
Total Number of students=200

(a) P (a junior who did not attend prom)

$P(J')=\frac{56}{200}= \frac{7}{25}$

(b)

$P(Senior)=\frac{116}{200}$

$P ($did not attend prom$ | senior)=\frac{\text{P(seniors who did not attend prom)}}{P(Senior)} \\=\frac{19/200}{116/200} \\=\frac{19}{116}$

(c)P (junior | attended prom)

$P(Senior)=\frac{84}{200}$

$P (Junior|$ attended prom$)=\frac{\text{P(juniors who attended prom)}}{P(\text{those who attended prom)}} \\=\frac{28/200}{125/200} \\=\frac{28}{125}$

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