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2 years ago

Select all the statements that are true for the graph shown.

Mathematics

1 answer:

Afina-wow [57]2 years ago

7 0

but I think it's -25 because it's on the bottom of -24

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What set of reflections would carry triangle ABC onto itself?

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A regular pentagon has a perimeter of 15x+35.

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-3.5 or -7/2

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Help anyone please . !!!!

vlabodo [156]

⇒The answer to the first question would be $69.75.

⇒The answer to the 2nd question would be $36.48.

⇒The answer to the 3rd question would be $42.7.

Here's how to get them:

For question 1: A 55% markup for $45 ⇒1.55*45⇒69.75

For question 2: A 60% markup for $22.8⇒ 1.6*22.8⇒36.48

For question 3: A 40% markup for $30.50⇒1.4*30.50⇒42.7

Small Explanation: The reason why there should be a 1 in front of the decimal (which is the percent, but in decimal form) is because by not adding that number 1 in front of the decimal, you will have to do an extra step.

Anyway, hope this helped! :-)

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2 years ago

What is the amplitude, period, and phase shift of f(x) = −3 cos(4x + π) + 6?

hammer [34]

This is in the form of $\sf acos(bx-c)+d$ .

Amplitude is equal to $\sf |a|$
Period is equal to $\sf\dfrac{2\pi}{|b|}$
Phase Shift is equal to $\sf\dfrac{c}{b}$

Plug in the values:

Amplitude:
$\sf |a|\rightarrow |-3|\rightarrow\boxed{\sf 3}$

Period:
$\sf\dfrac{2\pi}{|4|}\rightarrow\dfrac{2\pi}{4}\rightarrow\boxed{\sf\dfrac{\pi}{2}}$

Phase Shift:
$\sf\dfrac{c}{b}\rightarrow\boxed{\sf -\dfrac{\pi}{4}}$

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3 years ago