Convert x-y=3 and x-2y=3 into slope intercept form.

Mathematics

1 answer:

rodikova [14]3 years ago

5 0

Y=x-3 and Y=1/2x-3/2 and that is ur answer

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In this right triangle LMN L and M are complentary angles and sin (L) is 19\20 what is cos (M)

Zolol [24]

In any right triangle ABC, with right angle A we have the following:

$\sin(\angle B)=\cos(\angle C)$

and

$\sin(\angle C)=\cos(\angle B)$ .

This means that the sine of a non 90° angle, is equal to the cosine of its complementary angle.

Thus, $\displaystyle{ \cos(\angle M)=\sin (\angle L)= \frac{19}{20}$ .

(Take a look at the picture. From the definition of trigonometric ratios in right triangles we have :
$\displaystyle { \sin(\angle L)= \frac{opposite \ side}{hypotenuse} = \frac{19}{20}.$
and
$\displaystyle { \cos(\angle M)= \frac{adjacent \ side}{hypotenuse} = \frac{19}{20}.$ )

Answer: 19/20

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Step-by-step explanation:

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Xcel energy uses the equation c (x) =7.1+23logx to determine the cost of electricity for x hours. A. What would the function c^-

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

Note that the cost function is $c(x) = 7.1+23\ln(x)$ , which gives us the cost of electricity for x hours of consumption

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To find out the inverse function, we interchange the labels of x and y and solve for y, that is

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when solved for y we have

$e^{\frac{x-7.1}{23}}= y$

So the inverse function is given by $c^{-1}(x) = e^{\frac{x-7.1}{23}}$ .

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