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4 years ago

The rectangle has a length of (x+3) and the width (x+1)

Mathematics

1 answer:

Tamiku [17]4 years ago

7 0

The answer is b
Because you have to add da x and dat is 2x den add da numbers which is 4

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You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta

vladimir1956 [14]

Answer:

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

Step-by-step explanation:

The slope of the tangent line at a point of the curve is:

$m = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

$m = -\frac{\cos 2\theta}{\sin \theta}$

The tangent line is horizontal when $m = 0$ . Then:

$\cos 2\theta = 0$

$2\theta = \cos^{-1}0$

$\theta = \frac{1}{2}\cdot \cos^{-1} 0$

$\theta = \frac{1}{2}\cdot \left(\frac{\pi}{2}+i\cdot \pi \right)$ , for all $i \in \mathbb{N}_{O}$

$\theta = \frac{\pi}{4} + i\cdot \frac{\pi}{2}$ , for all $i \in \mathbb{N}_{O}$

The first four solutions are:

x: $\sqrt{2}$ $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$

y: 1 -1 1 -1

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

6 0

3 years ago

What is b(x)= 3x−16 5x−5 If b = 7

baherus [9]

Answer:

it is in the equation

Step-by-step explanation:

5 0

3 years ago

This flow chart shows the first five steps in a criminal

Illusion [34]

Answer:

The answer is B

Step-by-step explanation:

Because I did the test on edge

5 0

3 years ago

With compound interest, what happens when you start compounding more and more frequently?

VLD [36.1K]

Your money grows faster because the interest is added back into the principle and then the next time it compounds you get interest on the new principle amount. So for example, you deposit $100 in an account that gets 5% interest compounded semiannually. The first time it compounds you get $5 added to your account so your new balance is $105. The next time it compounds you get 5% on $105 so you get $5.25 added and so on. If this is only happening semi-annually that would be all you get for the year. But if it happens quarterly you would get would get deposits of $5.51 and $5.79 as well. If it compounds monthly or even daily your money would grow more and more. Hope this helps.

7 0

4 years ago

What is the answer to -50+15+-50?

Yakvenalex [24]

Answer:

-85

Step-by-step explanation:

Note that -50 + 15 = -35.

Next, we want to do -35 + -50. This means we next work out -35 - 50 (as plussing a negative number is equivalent to minusing).

So we get -35 - 50 = -85.

5 0

4 years ago

Read 2 more answers