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Nesterboy [21]
3 years ago
15

PLEASE HELP DUE IN 30 MINUTES FIND ? AND SHOW YOUR WORK

Mathematics
2 answers:
Ksivusya [100]3 years ago
8 0

Answer:

?= 180-(75+39)=66

Step-by-step explanation:

......

svlad2 [7]3 years ago
6 0

Answer:

66

Step-by-step explanation:

A triangle's angles always add up to 180.

So to find the missing angle, subtract the angles we already have by 180.

180-(75+39) = ?

180-114 = 66

I hope this helps!

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Mitchell walked 5/12 of a mile in 1/2 of an hour. At this rate, how far could Mitchell walk in 1 hour?
vovangra [49]

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2 \times  \frac{1}{2} hour = 1hour \\

Thus ;

2 \times  \frac{5}{12}  \:  \: miles =  \frac{10}{12}  \:  \: miles = \frac{5}{6}  \:  \: miles  \\

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6 0
2 years ago
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Its -20 but how? pls helppp. ill give brainliest
MissTica

w-10=2(w+5)

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4 0
2 years ago
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At top speed a cheetah can travel 114 km/hour . HOW MANY METERS CAN IT TRAVEL PER SECOND PLEASE HELP ME and don't forget to expl
densk [106]

Hey there! :) So first of all, I got 31.67 per second. The way I got my answer is first, I knew that 1 KM is 1000 Meters. So now, I multiplied 114 x 1000 which equals 114,000 Meters. Then, I figured out that 1 Hour has 3600 Seconds. Then I did 114,000 ÷ 3,600 and got 31.67 Seconds. And that is how I got the answer!

Hope it helps and it's the right answer & it's understandable! :D

4 0
3 years ago
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PSYCHO15rus [73]
The anwser is 5/14...... hope this helps! :)


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3 years ago
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Solving quadratic equation using the completing method.<br>(a).x^2+6x+1=0​
irina1246 [14]

Answer:

x = -3 + 2\sqrt2  \ , \ x = -3 - 2\sqrt2

Step-by-step explanation:

x² + 6x + 1 = 0

a = 1 , b = 6 , c = 1

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\\\\x = \frac{-6 \pm \sqrt{36-4}}{2}\\\\x=\frac{-6 \pm \sqrt{32}}{2}\\\\x= \frac{-6 \pm \sqrt{16 \times 2}}{2}\\\\x = \frac{-6 +4\sqrt2 }{2}\\\\x = -3 + 2\sqrt2  \ , \ x = -3 - 2\sqrt2

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