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2 years ago

The sum of two numbers is 56,and their difference is 10.What are the numbers?

1 answer:

6 0

So, X + Y = 56, and X - Y = 10.
We can say X = Y +10, so we can also say:
(Y+10) + Y = 56
2Y + 10 = 56

2Y = 46

Y = 23.

Then we can say

X - 23 = 10

So X = 33

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2 years ago

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Alex17521 [72]

Answer:

39°
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Step-by-step explanation:

$Hypotenuse = 32\\Adjacent = 25\\Angle\:\alpha \:=?\\Using \: SOHCAHTOA ;\\Cos \:\alpha = \frac{adj}{hyp} \\Cos \:\alpha = \frac{25}{32}\\\\\alpha = Cos^-^1\frac{25}{32} \\\alpha =38.62\\\\\alpha = 39$

$Opposite = 8\\Adjacent = 16\\\alpha =?\\Using SOHCAHTOA\\Tan\:\alpha = \frac{opp}{adj} \\Tan\:\alpha = \frac{8}{16} \\Tan \:\alpha =1/2\\\alpha = Tan^-^11/2\\\\\alpha =26.56\\\alpha =27$

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3 years ago

Solve the equation. -11=1+3r+3

luda_lava [24]

Answer:

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Step-by-step explanation:

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3 years ago

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ioda

Answer:

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Step-by-step explanation:

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1 year ago

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