3 years ago

Need help with these two questions .Show your work.

Mathematics

1 answer:

Brrunno [24]3 years ago

6 0

The first answer is 1360 tickets because 0.85x1600=1360
The second answer is B.25% because 17,600x0.25=4400

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Explain why the function is discontinuous at the given number

Blizzard [7]

For $f$ to be continuous at $x=5$ , we need to have

$\displaystyle\lim_{x\to5}f(x)=f(5)$

Note that $x\to5$ means that $x\neq5$ , but that $x$ is *approaching* 5. We're told that for $x\neq5$ , we have

$f(x)=\dfrac{x^2-5x}{x^2-25}$

We can write

$\dfrac{x^2-5x}{x^2-25}=\dfrac{x(x-5)}{(x+5)(x-5)}=\dfrac x{x+5}$

and the limit would be

$\displaystyle\lim_{x\to5}\frac x{x+5}=\dfrac5{5+5}=\dfrac5{10}=\dfrac12\neq1=f(5)$

and so $f$ is discontinuous.

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3 years ago

An experiment consists of tossing a coin and drawing a card, with the card- drawing stage dependent on the results of the coin t

Mnenie [13.5K]

Answer:

52 is the size of the sample space of this two-stage experiment

3 0

3 years ago

(answer choices above^)

UkoKoshka [18]

1 because you replace x with 2 so, (2)squared -5x2 + 7 = 4 - 10 + 7 = 1

7 0

3 years ago

-(x+6)-12=36 help me! Please

zmey [24]

Answer:

x=42

Step-by-step explanation:

-(42+6)-12=36

-(48)-12=36

48-12=36

hope this helps

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3 years ago

Find the value of n such that x^2-19x n is a perfect square trinomial.

Marianna [84]

B. 361/4
you get: x^2-19x+361/4=(x-19/2)^2

6 0

4 years ago

Read 2 more answers