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2 years ago

9-31/398= 6-87/8+85647-552= 254+9688

Mathematics

1 answer:

sp2606 [1]2 years ago

6 0

Answer:

don't you have a calculator? just use that

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5 3/12 - 1 4/9 what is the answer

Vlad1618 [11]

The answer is 3 29/36

5 3/12 = 5 9/36

1 4/9 = 1 16/36

So the answer equation is 5 9/36 - 1 16/36

down: 4 45/36 - 1 16/36 = 3 29/36

I HOPE THIS HELPS

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3 years ago

Given

Soloha48 [4]

Answer:

what? I don't get it?

Step-by-step explanation:

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2 years ago

1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?

pantera1 [17]

Answer: $x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

Step by step:

$1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

(Used a table of common angles)

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3 years ago

Sara got 88, 90, 75, 78, 100, 54, 90, 100, 45, and 60 on her English tests

Dmitrij [34]

The answer is 78 because when you add all the numbers it equals 780 and you need to divide the end sum by the amount of numbers added to get it. So in the end there were 10 numbers added to equal 780 so 780\10 equals 78

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3 years ago

Read 2 more answers

I Need Help Please with this problem

goldenfox [79]

ΔACD is similar to ΔBCD by AA similarity theorem

AD/AC = BD/BC

x/5 = 4.2/6

6x = 21

x = 3.5

Hope this helps! ;)

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2 years ago

9-3*1/3*98= 6-*87/8+85647-552= 254+968*8

9-31/398= 6-87/8+85647-552= 254+9688