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netineya [11]
3 years ago
11

12. Find DC showing step be step

Mathematics
1 answer:
algol [13]3 years ago
4 0
DB= 20sin(54)
DB= 16.18
DC=16.18/sin(28)
DC=34.46
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Please help :) I'm stuck on this question.
docker41 [41]

Answer:

Camille did it right.

Step-by-step explanation:

                                           4x-2y=8

Charlize:                                                      |         Camille:

-2y=8+4x                                                     |         -2y=8-4x

y=-4-2x                                                        |          y=-4+2x

The right answer:

4x-2y=8

  +2y +2y

4x=8+2y

-8 -8

2y=4x-8

2y/2=4x/2-8/2

y=2x-4  or y=-4+2x

So Camille is right, because she got y=-4+2x.

4 0
3 years ago
In Triangle JKL, ∠J is congruent to ∠L. Triangle J K L is shown. Ray L K extends beyond point K to form an exterior angle that i
Inga [223]

Answer:

m<L = 33.9^{o}

Step-by-step explanation:

Triangle JKL is an isosceles triangle, given that <J ≅ <L. An isosceles triangle has two of its angles and sides to be equal.

The exterior angle formed = 67.8^{0}

But,

<J + <L = 67.8^{0} (the sum of two opposite interior angles is equal to the exterior angle)

Let <J ≅ <L be represented by a, so that;

a + a =  67.8^{0}

2a = 67.8^{0}

a = \frac{67.8^{o} }{2}

  = 33.9^{o}

The measure of <L is m<L = 33.9^{o} (m<L =

Thus,

m<J ≅ m<L = 33.9^{o}

8 0
3 years ago
-2 + (-7) =<br> Help please
Goshia [24]

Answer:

That would be -5

Step-by-step explanation:

7 0
3 years ago
Let f(x)=−x√3 . What is the average rate of change of f(x) from 8 to 64?
Fed [463]

Average rate of change of the function: -\sqrt{3}

Step-by-step explanation:

The average rate of change of a function f(x) can be calculated as:

r=\frac{f(x_2)-f(x_1)}{x_2-x_1}

where:

x_1, x_2 are the x-values of the interval taken into account to evaluate the rate of change of the function

f(x_1),f(x_2) are the values of the function at those points

In this problem, we have:

x_1=8\\x_2=64

The function is f(x)=-x\sqrt{3}, so

f(x_1)=f(8)=-8\sqrt{3}\\f(x_2)=f(64)=-64\sqrt{3}

So, the average rate of change in this interval is:

r=\frac{-64\sqrt{3}-(-8\sqrt{3})}{64-8}=\frac{-56\sqrt{3}}{56}=-\sqrt{3}

Learn more about rates of change:

brainly.com/question/4152194

brainly.com/question/12941985

#LearnwithBrainly

5 0
3 years ago
0.2783 x 10 by the power of 5
hichkok12 [17]

Answer:

27,830

Step-by-step explanation:

Simply move the decimal to the right five digits.

So from 0.2783 to 2.783 to 27.83 etc. until you get 27,830

3 0
3 years ago
Read 2 more answers
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