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3 years ago

8

Sharlene bought 4 CDs at the music store. Each cost 14.95. She was charged 5% sales tax on her purchase. What was the total cost

of her purchase?

1 answer:

tresset_1 [31]3 years ago

7 0

The total cost is $15.70

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yanalaym [24]

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Professor Jones won't be too happy to see this.

Step-by-step explanation:

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3 years ago

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3 years ago

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zubka84 [21]

Answer:

a.10

b.10

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3 years ago

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vladimir2022 [97]

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3 years ago

Help me with these math questions....

Nady [450]

Answer: cotθ

<u>Step-by-step explanation:</u>

tanθ * cos²θ * csc²θ

= $\dfrac{sin\theta}{cos\theta} * \dfrac{cos\theta*cos\theta}{} *\dfrac{1}{sin\theta*sin\theta}$

= $\dfrac{cos\theta}{sin\theta}$

= cotθ

Answer: B

<u>Step-by-step explanation:</u>

The parent graph is y = x²

The new graph y = -x² + 3 should have the following:

reflection over the x-axis
vertical shift up 3 units

Answers:

a. Quadrant II
b. negative
c. $\dfrac{\pi}{6}$
d. C
e. $-\dfrac{\sqrt{3}}{3}$

<u>Explanation:</u>

$\dfrac{17\pi}{6} - \dfrac{12\pi}{6} = \dfrac{5\pi}{6}$

a) Quadrant 2 is: $\dfrac{\pi}{2} < \theta < \pi$

b) In Quadrant 2, cos is negative and sin is positive, so tan is negative

c) $\pi-\dfrac{5\pi}{6}$ = $\dfrac{\pi}{6}$

d) the reference line is above the x-axis so it is negative --> $-tan\dfrac{\pi}{6}$

e) $tan(\dfrac{5\pi}{6})=\dfrac{1}{-\sqrt{3}}=-\dfrac{\sqrt{3}}{3}$

4 0

3 years ago