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Mars2501 [29]
3 years ago
7

cho hs y=x^3/3-x^2+mx-1 m là tham số thực. có bnh gt nguyên của m thuộc (-10;10) để hs đb trên (-vô cùng;2)

Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0
I can’t understand you tho
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If f(x)=8-10x and g(x)=5x+4 what is the value of (fg)(-2)?
Shalnov [3]
First, calculate f(g(x))==> you plug (5x+4) in the value of x in f(x)

==>f(g(x))= 8-[10(5x+4)===>8-50x-40===>f(g(x))= -50x  + 32

& f(g(-2))= -100+32 =68.

There is a mistake in your answers, it should be 68 & not 78
6 0
3 years ago
Can somebody help me with this please
UNO [17]
I think the answer to 1 is Friday
8 0
3 years ago
Read 2 more answers
A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of t
oee [108]

Answer:

The Probability = 0.20

Step-by-step explanation:

From the question stated, the first step to take is to find probability that an employee selected at random will need either eyeglasses or major dental work

Solution

Given

Now,

The exams showed tha the number of employees needed eyeglasses = 8%

Employees that needed major dental work = 15%

Employees that needed  both eyeglasses and major dental work =3%

Thus,

The P(needed eyeglasses ) = 8% = 0.08

P(major dental work) = 15% = 0.15

P(eye glasses  and major dental work) = 3% = 0.03

The probability that an employee selected at random will need either eyeglasses or major dental work is  given as

= P(eye glasses ) + P(major dental work) - P(eyeglasses and major dental work)

= 0.08 + 0.15 - 0.03 = 0.20

Therefore the Probability = 0.20

5 0
3 years ago
A) y = 5x<br><br>B) y = 10x<br><br>C) y = 7.5x<br><br>D) y = 30x​
Jet001 [13]
Y=30x is the answer to this
5 0
2 years ago
A committee of 3 men and 4 women , is to be formed from 5 men and 7 women . How many different committees can be formed if :
Zigmanuir [339]

Answer:

<h3>Part A</h3>

<u>A particular man on the seat, then 2 men are out of 4:</u>

  • 4C2 = 4!/(4-2)!2! = 4*3*2/2*2 = 6

<u>4 women out of 7:</u>

  • 7C4 = 7!/(7-4)!4! = 7*6*5*4!/3!4! = 35

<u>Total combinations:</u>

  • 6*35 = 210
<h3>Part B</h3>

<em>Option 1</em>. 2 men excluded

3 men out of 3 and 4 women out of 7

<u>Total ways:</u>

  • 7C4 = 35 (as above)

<em>Option 2</em>. 2 women are excluded

<u>3 men out of 5 and 4 women out of 5</u>

  • 5C3*5C4 =
  • 5!/3!(5-3)! * 5!/4!(5-4)! =
  • 5*4/2 * 5/1 = 10

<em>Option 3</em>. 1 man and 1 woman excluded

<u>3 out of 4 men and 5 out of 6 women:</u>

  • 4C3*6C5 =
  • 4!/3!(4-3)! * 6!/5!(6-5)! =
  • 4*6 = 24
<h3>Part C</h3>

<u>No restrictions, so the number of ways:</u>

  • 3C5 * 7C4 =
  • 5!/3!(5-3)! * 35 =
  • 4*5/2 * 35 =
  • 10*35 = 350
8 0
2 years ago
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