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bezimeni [28]
2 years ago
14

Simply the expression by combining like terms 20c+8d+10c-5d​

Mathematics
1 answer:
valentinak56 [21]2 years ago
6 0

First, combine 20c and 10c because they are like terms then combine 8d and -5d.  

It would look like this:

20c+8d+10c-5d

30c+3d

Hope that helps

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Is -5/4 the same as 5/-4? Why or why not?
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Is the simplified form of 2 square root of 3⋅square root of 12 rational?
nalin [4]

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yes

Step-by-step explanation:

2 sqrt(3) * sqrt(12)

Rewriting sqrt(12) as sqrt(4 *3)

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7 0
3 years ago
Please help ASAP<br> Trigonometry
stellarik [79]

Answer:

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

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7)

now decide which parts we know and what we want to slove for and pick the function that has those in it

we also know that small angle down at the point b/c we can use that the inside of trianle angles add to 180

180 = 75 + 90 + X

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where x is the angle at that sharp point on the triangle

I want to use that 15° angle in one of the above formulas as it's Opposite of that side we want to know, and also adjcent to that side we know , so i'll pick TOA  since it's got all of those in it.  Opp = x for this triangle

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x = 4.0162 units , what ever they are

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the angle is 43° and we know the adjacent side and we want the Hypotenuse , now i'll pic  CAH  since it's got those pieces in it

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some algebra just to switch Hyp out of the denominator

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some tapping on my calculator

Hyp = 41.714

That's x for the second triangle

x = 41.71 units , what ever they are

:)

8 0
3 years ago
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KatRina [158]

Answer:

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