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klasskru [66]
2 years ago
14

Help anyone 8th grade math need it asap

Mathematics
1 answer:
Murljashka [212]2 years ago
6 0

Answer: x = 61

Step-by-step explanation:

0.2x - 3.2 = 1.8 x 5 (multiply 5 on both sides)

0.2x = 9 +3.2 (add 3.2 on both sides)

0.2x = 12.2

x = 61 (divide 0.2x on both sides)

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Find dy/dx by implicit differentiation for ycos(x)=xcos(y)
alekssr [168]

Answer:

dy/dx = (cos y + y sin x) / (cos x + x sin y)

Step-by-step explanation:

y cos x = x cos y

y (-sin x) + dy/dx cos x = x (-sin y dy/dx) + cos y

-y sin x + dy/dx cos x = -x sin y dy/dx + cos y

dy/dx (cos x + x sin y) = cos y + y sin x

dy/dx = (cos y + y sin x) / (cos x + x sin y)

5 0
3 years ago
A. Find the mean median and mode of the data.
IrinaK [193]
26 26 29 30 31 33 33 33 34 34 70

A.
Mean:30.9
Add all numbers up and divide by however many there are.
Median:32
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Mode:33
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B.
Mean:34.45
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Mode:33
4 0
2 years ago
Which problem can be solved by this number sentence? 3 × 7 = 21
vlada-n [284]
11+10=?????????????????????
5 0
2 years ago
A student council is made up of 6 girls and 12 boys. What is the probability of randomly selecting a comitee that is made up of
Mariana [72]

Answer:

0.1037

Step-by-step explanation:

(6C4 × 12C3)/18C7

3300/31824

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5 0
3 years ago
Round off 787592799 to the nearest 10​
timama [110]

Answer:

787592800

Step-by-step explanation:

Hi there,

If you round this answer to the nearest tens place, it would be 787592800. Since the 799 is closer to 800 rather than 790, it would round up and change the last three digits of the number instead of the usual two digits.

Hope this answer helps. Cheers.

3 0
2 years ago
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