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2 years ago

Hi can anyone help me please???? thank you!

Mathematics

2 answers:

Stolb23 [73]2 years ago

7 0

hey not tryna waste your time but you cute as hell whats your snap chat

SCORPION-xisa [38]2 years ago

3 0

The answer is C, because t shows time when you plug in a number for t the output will be the distance walked in that time. the first 0.5 hours (aka D(0.5) ) he walked is less than the second 0.5 (aka D(1) - D(0.5) ).

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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

2 years ago

What is the slope is this line please?

oksian1 [2.3K]

Answer:

3/4

Step-by-step explanation:

I'm not for sure but it won't hurt to try it.

5 0

2 years ago

Read 2 more answers

Can someone plz help me solved this problem! I’m giving you 10 points! I need help plz help me! Will mark you as brainiest!

Kobotan [32]

Answer: $2 or $9

Step-by-step explanation:

Revenue (R) = $1800 , x = 1100 - 100p

R = xp

1800 = (1100 - 100p)p substituted x with 1100 - 100p

1800 = 1100p - 100p² distributed p into 1100 - 100p

100p² - 1100p + 1800 = 0 added 100p² & subtracted 1100p on both sides

p² - 11p + 18 = 0 divided both sides by 100

(p - 2) (p - 9) = 0 factored quadratic equation

p = 2 p = 9 applied Zero Product Property to solve for p

6 0

2 years ago

The equation of a line is 8x+2y=10. Calculate the slope of the line.

emmainna [20.7K]

Answer:

that is the solution to the question

6 0

3 years ago

Please help me with this

Rudik [331]

Answer:

x = 18

Step-by-step explanation:

The parts of the triangles are proportional, so you can write ...

2x/80 = 27/60

Multiply by 120:

3x = 54

Divide by 3:

x = 18

3 0

2 years ago