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3 years ago

A coat costs $85.60. It is marked up 20%.

Mathematics

1 answer:

SVEN [57.7K]3 years ago

6 0

$102.72 is the correct answer

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3 3 3 3 3 3 3 3 3 3 3 3 3 3 33

Delvig [45]

Answer: the answer is c

Step-by-step explanation:

25 divided by 400 is 16

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2 years ago

The bill for the marx family is $78.37. How much tip should you leave if you want to leave a 15% tip?

Bess [88]

The tip would be $11.76 I think let me know if I'm right

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4 years ago

If u(x) = x5 – x4 + x2 and v(x) = –x2, which expression is equivalent to (StartFraction u Over v EndFraction) (x)? x3 – x2 –x3 +

Triss [41]

Answer:

^^look at the picture above it give you the answer^^

Step-by-step explanation

and the answer is C

your welcome hope it helps

7 0

3 years ago

Find the absolute extreme of the function on the closed interval. y=9e^xsinx , [0,pi]

Molodets [167]

For convenience sake, I will let $y=f(x)=9e^{x}\sin x$

First, we evaluate the function at the endpoints of the interval.

$f(0)=9e^{0}\sin(0)=0\\\\f(\pi)=9e^{\pi}\sin(\pi)=0$

Then, we need to find the critical points.

We can start by taking the derivative using the power rule.

$f'(x)=9e^{x} \frac{d}{dx} \sin x+9\sin x \frac{d}{dx} e^{x}=9e^{x}(\cos x+\sin x)$

Setting this equal to 0,

$9e^x (\cos x+\sin x)=0$

Since $9e^x > 0$ , we can divide both sides by $9e^x$ .

$\cos x+\sin x=0\\\\\sin x=-\cos x\\\\\tan x=-1\\\\x=\frac{3\pi}{4}$

$f\left(\frac{3\pi}{4} \right)=9e^{3\pi/4}\sin \left(\frac{3\pi}{4} \right)=\frac{9\sqrt{2}e^{3\pi/4}}{2}$

So, the absolute minimum is $\boxed{\left(\frac{3\pi}{4}, \frac{9\sqrt{2}e^{3\pi/4}}{\sqrt{2}} \right)}$ and the absolute minima are $\boxed{(0,0), (\pi, 0)}$

3 0

2 years ago

PLEASE HELP!!!

skelet666 [1.2K]

Translated down is changing y coordinate

(-2,4)
4-6 = -2

Coordinates of A’ is (-2,-2)

(-4,-7)
reflect over the y-axis
(x,y) -> (-x,y)

(-4,-7) -> (4,-7)

Coordinates of B’ is (4,-7)

Hope this helps!

3 0

3 years ago

Read 2 more answers