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3 years ago

7

Im so so sad worse day pls

2 answers:

evablogger [386]3 years ago

8 0

The answer would be D) 12. because you use base times height.

Korvikt [17]3 years ago

7 0

Formula: base x height

Therefore: 4x3 = 12

Hope this helps!

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Find all points on the curve that have the given slope.x = 2cost, y= 8sint, slope =-1

tatuchka [14]

Answer:

$t_{1} = 0.422\pi \pm \pi\cdot i$ , $\forall \,i \in \mathbb{N}_{O}$

$t_{2} = 1.422\pi \pm \pi\cdot i$ , $\forall \,i \in \mathbb{N}_{O}$

Step-by-step explanation:

In the case of parametric equations, the slope of the curve is equal to:

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

Where $\frac{dx}{dt}$ and $\frac{dy}{dt}$ are the first derivatives of $x$ and $y$ regarding $t$ . Let be $x(t) =2\cdot \cos t$ and $y(t) = 8\cdot \sin t$ , their first derivatives are found:

$\frac{dx}{dt} = -2\cdot \sin t$ and $\frac{dy}{dt} = 8\cdot \cos t$

Thus, equation for the slope is:

$\frac{dy}{dx} = -\frac{8\cdot \cos t}{2\cdot \sin t}$

$\frac{dy}{dx} = -\frac{4}{\tan t}$

If $\frac{dy}{dx} = -1$ , then:

$-1 = -\frac{4}{\tan t}$

$\tan t = 4$

Tangent is positive at 1st quadrant and is a function with a periodicity of $\pi$ , the set of solutions are:

$t_{1} = 0.422\pi \pm \pi\cdot i$ , $\forall \,i \in \mathbb{N}_{O}$

$t_{2} = 1.422\pi \pm \pi\cdot i$ , $\forall \,i \in \mathbb{N}_{O}$

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3 years ago

Is it ASA , SSS, AAS, SAS!! Help

Sonja [21]

Answer:

490

Step-by-step explanation:

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3 years ago

What is the value of f(x) = 36x when x =1/2

ivann1987 [24]

The value of f(x) is 18 because when there is 1/2, think about half (i think like that). so what is the half of 36? 18.

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3 years ago

HEEEEEEEEEEEEEELP PLZZ ASAP PLZZZZZZZZZZZZZZ

Andreyy89

Easy what is 25-10?
it is 15. So your answer would be 0.15
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4 years ago

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