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3 years ago

8

You want to purchase a book that costs $12.99. If there is a 5.5% sales tax, what will the total cost of the book be with tax?

1 answer:

ohaa [14]3 years ago

7 0

The answer is $13.70

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The height of the tunnel at the center is 35ft, and the vertical clearance must be 21 ft at a point of 8ft from the center. Find

Zinaida [17]

Answer:

y=-0.215x^2+35

Step by Step:

Let, $h=0$ , $k=35$ , $x=8$ , $y=21$

We know that, the general equation of the parabola.

$y-k = a(x-h)^2$

$\Rightarrow y=a(x-h)^2+k .........(i)$

Substitute the value of $h, k, x, y$ in equation $(i)$ and find the value of $a.$

$21=a(8-0)^2+35$

$\Rightarrow 21=a\times 8^2+35$

$\Rightarrow 21=64a+35$

$\Rightarrow 64a=21-35$

$\Rightarrow 64a=-14$

$\Rightarrow a=\frac{-14}{65}$

$\Rightarrow a=-0.215$

Hence, the equation of the parabola is:

$y=-0.215x^2+35$

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3 years ago

In triangle ABC, angle BAC = 72 degrees. The incircle of triangle ABC touches sides BC, AC, and AB at D, E, and F, respectively.

Thepotemich [5.8K]

Answer:qngels is -63

Step-by-step explanation:

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A woman’s store sells the following categories of clothing for the following prices blouse Ghc14 each, skirt Ghc16 each, dress G

Sindrei [870]

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3 years ago

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$trapezoid$

Hope help

Pls mark brainliest if it is a right answer

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3 years ago

HELP I WILL GIVE BRAINLIEST. ITS DUE TOMORROW!

Nana76 [90]

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Calm down, it's ok! the greatest value ( x = 5 )

Step-by-step explanation:

It won't be A as it is negative, so just choose the largest value and it is 5 and put it into the equation to check just in case.

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3 years ago