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3 years ago

Please help me i dont wanna fail Wispers: And, I wont be abel to play fortnite

Mathematics

2 answers:

ryzh [129]3 years ago

5 0

Answer:

40.95

Step-by-step explanation:

If the jacket is 40% off, you still have to pay 100% -40% or 60%

The new price is the original price times 60%

new price = 65*60%

=39

We need to find the sales tax

tax= price * tax rate

= 39 * 5%

= 39 *.05

=1.95

Final cost is the new price plus the tax

Final cost = 39+1.95

=40.95

Alik [6]3 years ago

3 0

40% off means you are paying 60% of the original price ( 100% - 40% = 60%

Multiply the price of the coat by 60%:

65.00 x 0.60 = 39.00 ( sale price)

Now multiply the sale price by 1.05 ( price of coat plus tax rate) to get the final cost:

39.00 x 1.05 = 40.95

The final price is $40.95

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Write the composite function in the form f(g(x)). [Identify the inner function u = g(x) and the outer function y = f(u).] y = ta

Irina-Kira [14]

Answer:

The inner function is $u = \pi x$ .

The outer function is $f(u) = \tan{u}$ .

$\frac{dy}{dx} = y^{\prime} = \sec^{2}(u)*\pi = \pi\sec^{2}{\pi x}$

Step-by-step explanation:

The inner function is the one we apply the outer function to.

$y = \tan{\pi x}$

We apply the outer function tangent to $\pi x$ .

So, the inner function is $u = \pi x$ .

The outer function is $f(u) = \tan{u}$ .

The derivative of a compositve function

$y = f(u)$ in which $u = g(x)$ is given by the following function.

$y^{\prime} = f^{\prime}(u)*g^{\prime}(x)$

$f(u) = \tan{u}$

$f^{\prime}(u) = \sec^{2}{u}$

$u = g(x) = \pi x$

$g^{\prime}(x) = \pi$

$y^{\prime} = f^{\prime}(u)*g^{\prime}(x)$

$\frac{dy}{dx} = y^{\prime} = \sec^{2}(u)*\pi = \pi\sec^{2}{\pi x}$

7 0

2 years ago

Help needed!!! Please

Sliva [168]

Answer:

<em>The correct option is: C. $x=6\sqrt{3}, y=12$ </em>

Step-by-step explanation:

The two angles of the triangle are given as 60° and 60°

As the sum of all three angle in any triangle is always 180°, so the measure of the third angle will be: 180°-(60°+60°) = 180° - 120° = 60°

Now each angle of the triangle is 60°, it means the triangle is equilateral.

The base of the triangle is given as 12. So, the length of each side will be 12.

That means, the value of $y=12$

Now in the left right triangle.....

$Sin(60)=\frac{x}{y} \\ \\ \frac{\sqrt{3}} {2}=\frac{x}{12} \\ \\ 2x=12\sqrt{3} \\ \\ x=6\sqrt{3}$

So, the value of $x = 6\sqrt{3}$

7 0

2 years ago

A railroad crossing sign has a diameter of 30 inches. what is the area of the sign?

Anna007 [38]

Answer:

706.5m^2

Step-by-step explanation:

The sign is a circle

Area of a circle is (pi)r^2

d = 30 in -> r = d/2 = 30/2 = 15

Area = 3.14 x (15)^2 = 706.5m^2

5 0

2 years ago

Read 2 more answers

Here is an expression.

sp2606 [1]

Answer:

Step-by-step explanation:

is the situation could the expression model.

6 0

1 year ago

Use the given graph. Determine the period of the function.

Ivahew [28]

Answer:

Step-by-step explanation:

Period of a function is the period after which the function attains the same value

in the graph attached with this problem we can see that

f(0)=1

the value of x for which function f(x) attains the value 1 again is at

x=3

f(3)=1

similarly , we see

f(6)=1 , f(9)=1

Hence we see that after every increased value of x by 3 units , we attain the same value of function . hence the period of the function is 3

6 0

3 years ago

Please help me i dont wanna fail *Wispers: And, I wont be abel to play fortnite*

Please help me i dont wanna fail Wispers: And, I wont be abel to play fortnite