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3 years ago

Two roots of a third degree polynomial function f(x) are 4 and 4. Which statement describes the number and nature of all roots

Mathematics

2 answers:

VladimirAG [237]3 years ago

6 0

Answer:f(x) has three real roots

Step-by-step explanation:

Iteru [2.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

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A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of t

IRINA_888 [86]

Answer: 0.206

Step-by-step explanation: the probability of employees that needs corrective shoes are =8%= 8/100 = 0.08

Probability of employees that needs major dental work = 15% = 15/100 = 0.15

Probability of employees that needs both corrective shoes and dental work = 3% = 3/100 = 0.03

The probability that an employee will need either corrective shoes or major dental work = (Probability an employee will need correct shoes and not need dental work) or (probability that an employee will need dental work or not corrective shoes)

Probability of employee not needing corrective shoes = 1 - 0.08 = 0.92

Probability of employee not needing dental work = 1 - 0.15 = 0.85

The probability that an employee will need either corrective shoes or major dental work = (0.08×0.85) + (0.15×0.92) = 0.068 + 0.138 = 0.206 = 20.6%

The probability that an employee will need either corrective shoes or dental work = 0.206.

Please note that the word "either" implies that we must choose one of the two options (corrective shoes or dental work) and not both.

5 0

3 years ago

The function y=f(x) is graphed below. Plot a line segment connecting the the points on f where x=5 and x=7. Use the line segment

aksik [14]

Answer: average y = -8 average y =2

ARC : -4

Step-by-step explanation:

8 0

3 years ago

The sum of two numbers is 92 their difference is 20 find the numbers

Ira Lisetskai [31]

92 - 20 = 72
72 / 2 = 36
36 + 20 = 56
36 + 56 = 92

So 36 and 56 are your answer

6 0

3 years ago

Eleven of 25 kids watch T.V. before falling sleep. What percent of kids watch T.V. before falling asleep?

Firdavs [7]

Answer:

44%

Step-by-step explanation:

7 0

3 years ago

Jeremy and Arnold are working on a project for math class in which they are to identify the quadratic equation that represents a

denis23 [38]

Answer:

The parabola generated by the expression :

$y=x^2-2x+3$

is the one that better represents a rain gauge above the ground.

Step-by-step explanation:

The function:

a) $y=x^2+11x+24$

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: below

So, the parabola doesn't depict a rain gauge off the ground

b) $y=-x^2-6x-8$

Direction of parabola: branches pointing down

Location of vertex relative to x-axis: above

So, the parabola doesn't depict a rain gauge off the ground

c) $y=x^2-2x+3$

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: two units above

So, the parabola depicts a rain gauge off the ground

d) $y=x^2+4x+4$

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: right on the x-axis

So, the parabola doesn't depict a rain gauge off the ground (this is sitting on the ground)

e) $y=3x^2+21x+30$

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: below

So, the parabola doesn't depict a rain gauge off the ground

5 0

3 years ago