3 years ago

Help help help help help help

Mathematics

1 answer:

Kay [80]3 years ago

4 0

What is the question. Is it asking for a picture of a line. Is it making a statement? Asking for a slope?

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85% of all cars sold in chicago are some color other than black. if three hundred black cars were sold in chicago, how many cars

hram777 [196]

Of 85% of cars sold where not black then 100-85% where black = 15%
let the number of cars sold be y
then 15%*y=300
y= 300 divided by 15%
= (300*100)/15
=2000
therefore 2000 cars were sold

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3 years ago

Point A is at (4,7). Find its new coordinate after it is translated 3 units left and 2 units down

VMariaS [17]

Answer:

B 1,5

Step-by-step explanation:

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If GJ = 7 and HJ = 6, then H _____ G. Choose the relationship symbol that would make a true statement. < = >

pantera1 [17]

It would be less than. (<)

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3 years ago

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Noah and Lin are each trying to solve the equation x² - 6x + 10 = 0. They know that the solutions to x² = - 1 are i and -i, but

Leviafan [203]

Answer:

Solving the equation $x^2 - 6x + 10 = 0$ we get $x=3+i \ , \ x=3-i$

Step-by-step explanation:

Noah's step to solve the equation $x^2 - 6x + 10 = 0$ are:

$x^2 - 6x + 10 = 0\\x^2 - 6x = -10\\x^2 - 6x + 9 = -10 + 9\\(x-3)^2 = -1$

The next step is to take square root on both sides because: $\sqrt{x^2}=x$

$\sqrt{(x-3)^2}=\sqrt{-1} \\x-3=\pm\sqrt{-1} \\x=\pm(\sqrt{-1})+3 \\$

Now, we know that: $\sqrt{-1}=i$

$x=\pm(i)+3\\x=3+i \ , \ x=3-i$

So, Solving the equation $x^2 - 6x + 10 = 0$ we get $x=3+i \ , \ x=3-i$

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3 years ago

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Yuri [45]

Answer:

Step-by-step explanation:

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3 years ago