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3 years ago

Evaluate the following examples of the greatest integer function:

Mathematics

1 answer:

Bad White [126]3 years ago

5 0

Answer:

Step-by-step explanation:

To evaluate the domains of the greatest integer function, the rule is that you always round DOWN to the next whole number.

f[[3.4]] = 3

f[[.8]] = 0

f[[-1.7]] = -2

f[[-3.5]] = -4

Always round down!! Just remember that and you'll be ok!

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The probability that Fiona wakes up before 8am when she does not set her alarm is 2/5 On two consecutive days that Fiona does no

denpristay [2]

Answer:

16/25 = 0.64 = 64%

Step-by-step explanation:

If we want the probability of Fiona waking up before 8am for at least one of the days, we can calculate the probability of she not waking up 8am in both days, and then we do 1 minus this probability.

The probability of she not waking up 8am in one day is (1 - 2/5) = 3/5

The probability of she not waking up 8am in both days is 3/5 * 3/5 = 9/25

So, the probability of Fiona waking up before 8am for at least one of the days is (1 - 9/25) = 16/25 = 0.64 = 64%

8 0

4 years ago

Write the quadratic equation whose roots are 4 and 5, and whose leading coefficient is 4.

Umnica [9.8K]

Answer:

Answer: 4x² - 9x + 20 

Step-by-step explanation:

• General quadratic equation:

${ \rm{ {x}^{2} - (sum \: of \: roots)x + (product \: of \: roots) }}$

• sum of roots → 4 + 5 = 9

• product of roots → 4 × 5 = 20

• substitute:

${ \boxed{ \rm{4 {x}^{2} - 9x + 20 }}}$

3 0

3 years ago

What is the area of this trapezoid?

AVprozaik [17]

this is the Answer:

A=a+b

6 0

3 years ago

Name the property the equation illustrates.

vodomira [7]

Commutative Property of Addition

4 0

3 years ago

Read 2 more answers

Will mark brainliest :)

jek_recluse [69]

Answer:

Step-by-step explanation:

The equation of the parabola is of the form

y = ax² + c ( where c is the y- intercept )

Here c < 0

Since the parabola has a maximum value and opens down then a < 0

Thus the only equation that could represent this parabola is

y = - x² - 3 → D

3 0

3 years ago