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asambeis [7]
3 years ago
12

Let a, b, and c be integers. Consider the following conditional statement:

Mathematics
1 answer:
Andrew [12]3 years ago
6 0

Step-by-step explanation:

Given that the logical statement is

<em>"If a divides bc, then a divides b or a divides c"</em>

we can see that a must divide one either b or c from the statement above

A) If a does not divide b or a does not divide c, then a does not divide bc.

This is False because a can divide b or c

 B) If a does not divide b and a does not divide c, then a does not divide bc.

this is True for a to divide bc it must divide b or c (either b or c)

C) If a divides bc and a does not divide c, then a divides b.

This is True since a can divide bc and it cannot divide c, it must definitely divide b

D) If a divides bc or a does not divide b, then a divides c.

This is True since a can divide bc and it cannot divide b, it must definitely divide c

E) a divides bc, a does not divide b, and a does not divide c.

This is False for a to divide bc it must divide one of  b or c

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Find the largest possible revenue from the demand equation "Q= -2p + 1000
Mariana [72]
Revenue=quantity x price= (-2p+1000) (p)= -2p^2+1000p
The maximum revenue will occur when the first derivative is zero so when 2(-2p)+1000=0;p=250
Which generates 125,000 in revenue
Try prices of 245 and 255 and you will see they both are less than 250 thereby proving the max revenue is 250
3 0
3 years ago
Find the sum of 5x+20 and the opposite of 20. Write an equivalent expression in standard form.
baherus [9]
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5 0
4 years ago
WILL MARK BRAINLIEST!!!!!!! Use graphs and tables to find the limit and identify any vertical asymptotes of the function. limit
garri49 [273]

Answer:

see below

Step-by-step explanation:

lim x/ (x-4)

as x approaches 4 from the left

let x = 3.9

3.9/ (3.9-4) = -39

Let x = 3.99

3.99/ (3.99 - 4) =-399

As we get closer to 4 from the left we get larger and larger so we will get closer to - negative infinity

The limit as shown in the graph is negative infinity

The vertical asymptote is x=4

The horizontal symptote is y =1

8 0
4 years ago
what are the x-coordinates for the maximum points in the function f(x) = 4 cos(2x- pi) from x = 0 to x= 2 pi?
julsineya [31]

Answer:

\frac{\pi }{2} and \frac{3\pi }{2}

Step-by-step explanation:

To find the max points we need to take the derivative of the function and then find the critical values.

First we take the derivative:

f(x) = 4cos(2x-\pi )\\f'(x)=-4sin(2x-\pi )(2)\\f'(x)=-8sin(2x-\pi )\\

Now we need to find when f'(x)=0 to find the critical values.

0=-8sin(2x-\pi )\\0=sin(2x-\pi )\\sin^{-1}0=2x-\pi \\0=2x-\pi \\\pi =2x\\\frac{\pi }{2} =x

The critical values will be

\frac{\pi }{2} n for any integer n

between 0 and 2 pi, the critical values will be

0, \frac{\pi }{2} ,\pi ,\frac{3\pi }{2},2\pi

We can determine if these are minimums or maximums by using the second derivative test.

So we need to take the second derivative;

f'(x)=-8sin(2x-\pi )\\f''(x) = -8cos(2x-\pi )(2)\\f''(x)=-16cos(2x-\pi)

We need to see if the second derivative is positive or negative to determine if it is a max or min.

f''(0) = 16\\f''(\frac{\pi}{2})=-16\\f''(\pi )=16\\f''(\frac{2\pi}{3}) = -16\\

Since the second derivative is negative at

\frac{\pi }{2} and \frac{3\pi }{2}

we know both of those are the x-values of maximums.

5 0
4 years ago
Is this rational or irrational I really need help ASAP! Will mark brainlist.
sertanlavr [38]

Answer:

Irrational number

Step-by-step explanation:

A irrational number is when the numbers cannot be written as a quotient of two integers.

8 0
3 years ago
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