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notka56 [123]
3 years ago
5

I need an answer for 27 please. Thank you. It’s due tomorrow.

Mathematics
1 answer:
Anarel [89]3 years ago
7 0

\bf \stackrel{distance}{d}~~=~~\stackrel{rate}{r}\cdot \stackrel{time}{t} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{kilometers}{k}~~=~~\stackrel{rate, km/h}{8}\cdot \stackrel{time, hours}{d}~\hfill \stackrel{km s~travelled~in~ d = 3~ hours}{k=8(3)\implies k = 24}

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Quickly compute the following differences of squares. (a). 64^2 − 14^2 (b). 112^2 − 88^2 (c). 785^2 − 215^2
VikaD [51]

Answer:

(a) 3900

(b) 4800

(c) 570000

Step-by-step explanation:

We have given

(a) 64^2-14^2

We know the algebraic equationa^2-b^2=(a+b)(a-b)

So 64^2-14^2=(64+14)(64-14)=3900

(b) We know the algebraic equationa^2-b^2=(a+b)(a-b)

112^-88^2=(112+88)(112-88)=4800

(c) We know the algebraic equationa^2-b^2=(a+b)(a-b)

785^2-215^2=(785+215)(785-215)=570000

5 0
3 years ago
Plz help Answer the question below i give brainliest
bija089 [108]

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown".

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3 years ago
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4 years ago
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sveta [45]
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4 years ago
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Mckenzie and Cara both tried to find the missing side of the right triangle.
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It depends on the given information.

McKenzie's work is correct if the two short sides are given as 5 and 13.

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By the way, Ddssaa122: when posting questions, the power of a number is written as 5^2 and not 52.   If you copy and paste, please make sure you add the caret sign to indicate a power, or else you will suffer by getting a wrong answer.    5^2=5*5, 52=4*13, so they are not the same.
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4 years ago
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