3 years ago

Question 20(Multiple Choice Worth 1 points)

Mathematics

1 answer:

kirza4 [7]3 years ago

7 0

X = 4 because 1 over 24 times 4 is 4 over 24 which is converted to 1 over 6

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In math what is the answer to this question. -27•7/9=

agasfer [191]

$-27 \times \frac{7}{9} = -3\times \frac{7}{1} = -3\times 7 = \boxed{-21}$

Your answer is -21

6 0

3 years ago

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

Help me pls working on quizizz :(

nexus9112 [7]

here your answer mate

3.25

hope it helps ☺️✌️

8 0

2 years ago

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Tim has a cylinder that is 6 inches tall with a radius of inches. If he calculates the volume of the cylinder, which unit should

Svet_ta [14]

Cubic inches
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3 years ago

A car travels at an average speed of 48 miles per hour. How long does it take to travel 180 miles?

Sonja [21]

Answer:

3 hours and 45 minutes

Step-by-step explanation:

mark me a brainliest answer

4 0

2 years ago