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3 years ago

Can you help me with this? 4

Mathematics

1 answer:

Delvig [45]3 years ago

6 0

Answer:

Step-by-step explanation:

m<ACB is equal to m<ABC because when to split the triangle down the middle and reflect one half you would have the same open shape. So by knowing that, you add 46+46 to get 92. Also knowing a triangle is equal to 180, you would end up subtracting 92 from 180 to get 88.

hope this helps!

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(-3+7i)(1-2i) can you help me with the answer to this

lozanna [386]

Answer:

11 + 13i

Step-by-step explanation:

A must know is that

$\sqrt{i} = - 1$

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1st: foil the equations

$- 3(1 - 2i) + 7i(1 - 2i)$

$- 3 + 6i + 7i- 14 {i}^{2}$

2nd Combine like terms and substitute

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1 year ago

An insect crawls up 5cm every second on a 6cm vertical rod and then falls down 2cm over the next second. How many seconds will i

makkiz [27]

Answer:

3 seconds

Step-by-step explanation:

It's quite simple. First, add 5cm to the progress of the insect, counting it as 1 second. Then subtract 2cm because it falls over the next second, thus taking another second. Then finally, plus 5cm, making it 3 seconds. It's not 4 seconds because at 3 seconds it had already reached the top.

If I didn't clear everything or messed up, please comment.

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2 years ago

Distributive property for x(11+2), please????

Hitman42 [59]

Answer: 13x

Step-by-step explanation: Multiply x to 11 and 2

11x+2x=13x

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1 year ago

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Heston found the opposite of a number<br> to be negative 4.2. What is the number?

Daniel [21]

Um 4.2 maybe since -4.2 and 4.2 or on the opposite scale

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2 years ago

Karen has a large pile of colored rods. Each color is a different length. She is trying to connect different colored rods to mak

lesya [120]

Answer:

RED,ORANGE,YELLOW

PURPLE,YELLOW,GREEN

BLUE,GREEN,YELLOW

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ORANGE,YELLOW,GREEN

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Step-by-step explanation:

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2 years ago

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