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lubasha [3.4K]
3 years ago
12

How do I find angle OCD? pls help

Mathematics
1 answer:
Blizzard [7]3 years ago
8 0
Since AO is parallel to CD, the angles CAB and BCA will be congruent. Therefore they both equal 57. that gets you on the right track
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PLZ HELP ANY1!!!!!!!!!!!
Ronch [10]
Its the last one because you plug in the 20(x) for example y=20x 
and your table looks like this 
x 0/2/4
y 0/40/80  y  x
because 20(2)=40 then you would do the same with the rest of the equation
20(4)= 80 there fore the last on is your answer 
3 0
2 years ago
Please help me if you know how to do this!
lukranit [14]

Question 21

Let's complete the square

y = 3x^2 + 6x + 5

y-5 = 3x^2 + 6x

y - 5 = 3(x^2 + 2x)

y - 5 = 3(x^2 + 2x + 1 - 1)

y - 5 = 3(x^2+2x+1) - 3

y - 5 = 3(x+1)^2 - 3

y = 3(x+1)^2 - 3 + 5

y = 3(x+1)^2 + 2

Answer: Choice D

============================================

Question 22

Through trial and error you should find that choice D is the answer

Basically you plug in each of the given answer choices and see which results in a true statement.

For instance, with choice A we have

y < -4(x+1)^2 - 3

-7 < -4(0+1)^2 - 3

-7 < -7

which is false, so we eliminate choice A

Choice D is the answer because

y < -4(x+1)^2 - 3

-9 < -4(-2+1)^2 - 3

-9 < -7

which is true since -9 is to the left of -7 on the number line.

============================================

Question 25

Answer: Choice B

Explanation:

The quantity (x-4)^2 is always positive regardless of what you pick for x. This is because we are squaring the (x-4). Squaring a negative leads to a positive. Eg: (-4)^2 = 16

Adding on a positive to (x-4)^2 makes the result even more positive. Therefore (x-4)^2 + 1 > 0 is true for any real number x.

Visually this means all solutions of y > (x-4)^2 + 1 reside in quadrants 1 and 2, which are above the x axis.

5 0
3 years ago
Write the point-slope form of the line that passes through the origin and is parallel to a line with a slope of 2. include all o
Vaselesa [24]
<span>Point slope form is (y - y1) = m(x - x1), where m is a slope of 2, and x1 = 0 and y1 = 0 are our point at the origin. Therefore, we can plug in these values to get the point slope equation for our line: (y – 0) = 2*(x - 0)</span>
3 0
3 years ago
Read 2 more answers
The distance on a map between the entrance of the park in waterfall inside the park is 4 1/2 inches if 3 inches is 2 1/2 miles w
aleksandrvk [35]
5 3/4 divided by 4 1/2       23/4 divided by 9/2     23/4 times 2/9      46/36 = 1 and 10/36  (reduced) = 1 and 5/18 inches

5 0
3 years ago
The table shows the cost for ordering a certain number of tacos. What is the value of x if the cost is proportional to the numbe
schepotkina [342]

Answer:

it would be tacos times 1.3 so $7.80

8 0
3 years ago
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