3 years ago

Find y. round to the nearest tenth

Mathematics

1 answer:

Debora [2.8K]3 years ago

3 0

Answer:

x is 90 z is 60 and y is 30

Step-by-step explanation:

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Find the value of i77. A) 1 B) i C) −1 D) −i

Colt1911 [192]

assuming you mean $i^{77}$ where $i=\sqrt{-1}$

ok, notice a pattern in the exponent

$i^1=i=\sqrt{-1}$

$i^2=-1$

$i^3=-\sqrt{-1}=-i$

$i^4=1$

$i^5=i=\sqrt{-1}$

hum, so it goes 1,2,3,4, then repeats

ok, so every 4, the cycle repeats

how far up is 77 from a multipule of 4?

4*19=76

76 is 1 away from 77

so $i^{77}=(i^{76})(i^1)=$

$(i^4)^{19}(i)=(1)^{19}i=i$

the answer is B

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3 years ago

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kotykmax [81]

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3 years ago

On a number line, what is the distance between -9 and -5?

Makovka662 [10]

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The distance on a number line between -9 and -5 would be 4. This is kinda easy.

Step-by-step explanation:

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3 years ago

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Furkat [3]

$\huge\bold{\purple{\bold{⚡133°⚡}}}$

Step-by-step explanation:

Co interior angles' sum is 180°

So, 180-67=133
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Yesterday, Julie’s bank account balance was –$10.28. She deposited some money into her account so that her balance is now $39.89

Tcecarenko [31]

10.28+39.89=50.17

hope this helps

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