3 years ago

Car insurance of 800 Is twice what it was a decade ago. Find the cost of the insurance then

Mathematics

1 answer:

mr Goodwill [35]3 years ago

6 0

Answer:

it was 400 back then, a decade ago

Step-by-step explanation:

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If y = 10x - 1 and the value of x is 10, what is the value of y?

KatRina [158]

Answer:

Step-by-step explanation:

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2 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:

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

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

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$\cos 2\theta = 0$

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

$\theta = \frac{1}{2}\cdot \left(\frac{\pi}{2}+i\cdot \pi \right)$ , 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

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2 years ago

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GenaCL600 [577]

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2 years ago

Two angles of a quadrilateral measure 325° and 10°. The other two angles are in a ratio of 2:3. What are the measures of those t

Dmitry_Shevchenko [17]

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The answer is 60 and 80

Step-by-step explanation:

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2 years ago

Find the equation of the line with slope = 2 and y-intercept = -8.

elena-s [515]

Answer: d

Step-by-step explanation:

Using the linear equation y=mx+b, you are given m (the slope) and b (the y-intercept). m=2 and b=-8. Therefore, y=2x-8

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2 years ago

Car insurance of 800 Is twice what it was a decade ago. Find the cost of the insurance then​

Car insurance of 800 Is twice what it was a decade ago. Find the cost of the insurance then