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3 years ago

What is the distance between points (-4, 5) and (8, 40) on the coordinate plane?

Mathematics

1 answer:

Zolol [24]3 years ago

8 0

The distance is 37
I attached a picture

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Classify the system and determine the number of solutions. Check all that apply. {7x + y = 13 28x + 4y = -12 A) inconsistent B

Ostrovityanka [42]

$\left\{\begin{array}{ccc}7x+y=13&|multiply\ both\ sides\ by\ (-4)\\28x+4y=-12\end{array}\right\\+\left\{\begin{array}{ccc}-28x-4y=-52\\28x+4y=-12\end{array}\right\ \ \ |add\ the\ sides\ of\ the\ equations\\------------\\.\ \ \ \ \ \ \ \ 0=-64-FALSE\\\\Answer:A)\ inconsistent\ and\ D)\ no\ solution.$

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4 years ago

the area of the curved surface of a solid cylinder is equal to 2/3 of the total area of the same cylinder . If the total surface

zheka24 [161]

Answer:

Sa = 36 circumference per meter square

This answer is wrong sorry

Will you my friend

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3 years ago

Lim ln(tan x) as tends to pi/2 from the left

ioda

Let $x=\arctan y$ . Then $\tan x=y$ , and so as $x\to\dfrac\pi2^-$ , you have $y\to+\infty$ . The limit is then equivalent to

$\displaystyle\lim_{x\to\frac\pi2^-}\ln(\tan x)=\lim_{y\to\infty}\ln y=\infty$

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4 years ago

The distance an airplane travels depends on how much time it spends flying. Which expression represents the distance the airplan

kogti [31]

Answer: B. $\text{Distance(20)}$

Step-by-step explanation:

The notation to express a dependent variable is given by :-

$Y(x)$ , where Y is depending variable which is dependent upon x ( independent variable).

The given statement : The distance an airplane travels depends on how much time it spends flying.

Here , Independent variable : Time

Dependent variable : Distance

Then , the notation to express distance (dependent variable) the airplane flies in 20 minutes is given by :-

$\text{Distance(20)}$

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3 years ago

What is the equation of the slope which is 2 and (1‚8)

sergey [27]

Answer:

y=2x+6

Step-by-step explanation:

Graph the coordinates

Go up to over one or down two left on

Get your y-intercept

put in y=mx+b

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3 years ago