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Luba_88 [7]
3 years ago
9

I need help w/ two questions. It includes the SAS and AAS postulates :) will award brainliest

Mathematics
1 answer:
WINSTONCH [101]3 years ago
4 0

5. You know angles LOY and ROY are congruent, and side OY is incident to both triangles LOY and ROY, which is of course congruent to itself. Triangles LOY and ROY will be congruent if sides OL and OR are also congruent.

6. Similar situation as in (5). MD is incident to both triangles MAD and DEM and is congruent to itself. Angles AMD and EDM are congruent. To use the AAS postulate, you need to know that angles MAD (or just A) and DEM (or just E) are congruent.

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Monica [59]
The answer is -14 . i think
5 0
2 years ago
Find the derivative of sinx/1+cosx, using quotient rule​
Mrrafil [7]

Answer:

f'(x) = -1/(1 - Cos(x))

Step-by-step explanation:

The quotient rule for derivation is:

For f(x) = h(x)/k(x)

f'(x) = \frac{h'(x)*k(x) - k'(x)*h(x)}{k^2(x)}

In this case, the function is:

f(x) = Sin(x)/(1 + Cos(x))

Then we have:

h(x) = Sin(x)

h'(x) = Cos(x)

And for the denominator:

k(x) = 1 - Cos(x)

k'(x) = -( -Sin(x)) = Sin(x)

Replacing these in the rule, we get:

f'(x) = \frac{Cos(x)*(1 - Cos(x)) - Sin(x)*Sin(x)}{(1 - Cos(x))^2}

Now we can simplify that:

f'(x) = \frac{Cos(x)*(1 - Cos(x)) - Sin(x)*Sin(x)}{(1 - Cos(x))^2} = \frac{Cos(x) - Cos^2(x) - Sin^2(x)}{(1 - Cos(x))^2}

And we know that:

cos^2(x) + sin^2(x) = 1

then:

f'(x) = \frac{Cos(x)- 1}{(1 - Cos(x))^2} = - \frac{(1 - Cos(x))}{(1 - Cos(x))^2} = \frac{-1}{1 - Cos(x)}

4 0
3 years ago
It costs $11.18 to buy 13 cans of cranberry sauce. If the cans all cost the same amount, what is the price of each can?
AnnyKZ [126]

Answer:

Each can costs $0.86

Step-by-step explanation:

We find the unit price by dividing the cost by the number of cans.

11.18/13 = 0.86

I hope this helped and please mark me as brainliest!

8 0
2 years ago
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What’s the answer to this?!!
Basile [38]
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8 0
3 years ago
A rectangular classroom has an area of 300 square feet. The length of the classroom is 5 feet longer than the width, w. Create a
weqwewe [10]

Answer:

w^2 + 5w = 300

Step-by-step explanation:

A= length x width

A =300

Width = w

length = w + 5

Therefore

300 = (w) x (w + 5)

300 = w^2 + 5w

w^2 + 5w = 300

6 0
2 years ago
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