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3 years ago

8

Theresa finds a shirt on sale at the store. The regular price of the shirt is $32.00. But there is a 20% off sale today. Theresa

remembered that there is 8.1% tax on the sale price of the shirt. What is her final cost?
Question 10 options:

$28.92

$27.67

$29.31

$31.00

1 answer:

telo118 [61]3 years ago

8 0

Answer:

Step-by-step explanation:

Given tgat:

Regular price = $32

Discount = 20%

Sale tax = 8.1%

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Hence, cosine function takes the negative value in second and third quadrant but we have to only find the value in the interval $[0,\pi]$ .

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Hence, the x-coordinates where $f'(x)=0$ for $f(x)=2x+\sin(4x)$ is $\dfrac{\pi}{6}$ .

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