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Yuki888 [10]
2 years ago
11

Need help with this geometry question, solving for x and please explain the formula for this

Mathematics
1 answer:
Alborosie2 years ago
3 0
Alright, so what we can take as a given is that arcDE/2= ∠CDE=2x+20 since the arc corresponding to the angle is 2*the angle. To solve for arcDE, we multiply both sides by 2 to get 2(2x+20)=4x+40=arcDE. Since the arcs in a circle add up to 360 degrees and we only have -20+30x and arcDE, we have -20+40+4x+30x=360 using the associative property. Simplifying, we get 20+34x=340. Subtracting 20 from both sides, we get 340=34x. Next, we can divide both sides by 34 to get 10=x. 
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Ok I have math hw , and we are doing solving systems of linear equations by graphing and i can’t find where these two lines inte
likoan [24]

Answer:

Line 1, y=-3, x=-3

Line 2, y=2, x=1 1/3

Step-by-step explanation:

6 0
2 years ago
3. Marco's Pizzeria has a pizza deal of 5 slices for $6. New York Slice has a pizza deal of 4 slices for $5. Which pizza place h
NeTakaya
New York slice has a better pizza deal
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2 years ago
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Find the area of the circle. Use 3.14 for .<br> 80 yd<br> The area of the circle is about<br> yd2?
Aleksandr [31]

Step-by-step explanation:

A =nr²

=3.14 × (80/2)

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5 0
3 years ago
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I need help asap plz!!!​
svet-max [94.6K]

Answer:

AC ≈ 10.3

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan48° = \frac{opposite}{adjacent} = \frac{AC}{AB} = \frac{AC}{9.3} ( multiply both sides by 9.3 )

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AC ≈ 10.3 ( to 3 sf )

5 0
2 years ago
-5w = -24.5 what is it. ​
pav-90 [236]

Answer:

w=4.9

Step-by-step explanation:

If you are solving for w, you want to isolate the variable. If it is easier to write it out, it would look something like this..

-5 x w = -24.5

To get w by itself, use the inverse of multiplication, which is division. Divide the expression to the left of the equal sign by -5. Remember, what you do to one side, you must do to the other. When you divide -24.5 by -5, you end up with

w=4.9

6 0
3 years ago
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