4 years ago

Compatible numbers are the numbers in a problem that are easy to compute BLANK . PLZ TELL ANSWER

Mathematics

1 answer:

sweet [91]4 years ago

8 0

Compatible numbers are close in value to actual number and make it easy to do mental math.

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Use the regression equation to estimate the value of the car 8 years after purchase. Round to the nearest dollar.

katrin2010 [14]

Answer: $6019

Step-by-step explanation:

plug 8 into the equation -3223.31(multiply by 8 in place of x)+31805.58

and you'll get 6019.1 but it will only be right if you round to 6019

I took this assignment

8 0

3 years ago

Read 2 more answers

Use the polar representation to write the following in the form a + bi (a) (-1+ i)^7 (b) (1+v3i)^10

ira [324]

Answer with Step-by-step explanation:

For any complex number x+iy the polar form is represented as

$z=re^{i\theta }$

where

$r^{2}=x^2+y^2\\\\tan(\theta )=\frac{y}{x}$

Part a) x+iy = -1+i

Thus $r=\sqrt{-1^2+1^2}=\sqrt{2}\\\\ \theta _{1}=tan^{-1}(\frac{-1}{1})=\frac{-\pi }{4}$

Thus using De-Morvier's theorem

$(-1+i)^7=(\sqrt{2}e^{i\frac{-\pi }{4}})^7\\\\\therefore (-1+i)^7=2^{7/2}\cdot e^{\frac{i-\pi }{28}}$

Part 2) x+iy = 1+3i

Thus $r=\sqrt{1^2+3^2}=\sqrt{10}\\\\ \theta _{1}=tan^{-1}(\frac{3}{1})=1.25$

Thus using De-Morvier's theorem

$(1+3i)^{10}=(\sqrt{10}e^{1.25i})^{10}\\\\\therefore (1+3i)^{10}=10^{5}\cdot e^{12.5i}$

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I started at my house at (-3,5) and started driving to fredericksburg. i got a flat tire halfway at (10,-5) how far would my who

coldgirl [10]

(23,-10) would be the answer

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a bag of the same size small balls contains 6 blue balls 5 red balls 5 yellow balls and 4 green balls What is the probability of

valentinak56 [21]

You would start by finding the total amount of marbles, which in this case is 20.

Then find the total amount of blue AND green balls. 10.

Then put 10/20, simplify, and you have yourself 1/2.

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Zack spent $150 for 3tickets what was the ratio of money to tickets

Tcecarenko [31]

$50 each.................... hope it helped

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