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baherus [9]
4 years ago
12

×square minus3× minus 10=0

Mathematics
1 answer:
nika2105 [10]4 years ago
6 0
X²-3x-10=0
x²-(5-2)x-10=0
x²-5x+2x-10=0
x(x-5)+2(x-5)
(x-5)(x+2)
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3 years ago
At a certain university, 42% of the students are women, and 18% are engineering majors. Of the engineers, 22% are women. If a st
Vsevolod [243]

Answer: 0.5604

Step-by-step explanation:

Let A represents the students who are women and B represents the students who are engineering majors.

Then , we have given that P(A)=0.42\ ;\ P(B)=0.18\ ;\ P(A|B)=0.22

By formula , P(A\cap B)=P(A|B)\times P(B)=0.22\times0.18=0.0396

Using formula, \text{P(A or B)=P(A)+P(B) - P(A and B)}, we have

\text{P(A or B)}=0.42+0.18-0.0396=0.5604

Hence, the probability that the selected person is either a woman or an engineering major = 0.5604

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3 years ago
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Lady_Fox [76]
The answer is b(7)= 6
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3 years ago
Calculate the measure of one angle in a regular nonagon. A. 140° B. 180° C. 1,260° D. 1,620°
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