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vivado [14]
3 years ago
10

In the figure below, EC || AB. Find the length of EC.

Mathematics
2 answers:
serious [3.7K]3 years ago
7 0
The answer is A I hope this helps
timofeeve [1]3 years ago
4 0

Answer:

Letter a)

Step-by-step explanation:

quizlet

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Evaluate each expression.
Greeley [361]

Answer:

a 16

b30

Step-by-step explanation:

you said c is 5 so 11 +5 and you said b was 2 so 15 times 2 Is 30

8 0
3 years ago
Part 3: Write the equation of and graph an ellipse.
tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

The center is halfway between vertices, at (4, -6).

It is also halfway between foci.

:::::

The vertices are vertically aligned, so the parabola is vertical.

General equation for a vertical ellipse:

 (y-k)²/a² + (x-h)²/b² = 1

with

 center (h,k)

 vertices (h,k±a)

 co-vertices (h±b,k)

 foci (h,k±c), c² = a²-b²

Apply your data and solve for h, k, a, and b.

center (h,k) = (4, -6)

h = 4

k = -6

vertices (4,-6±a) = (4,-6±9)

a = 9

foci (4,-6±c) = (4,-6±5√2)

b² = a² - c² = 9² - (5√2)² = 31

b = √31

The equation becomes

 (y+6)²/81 + (x-4)²/31 = 1

:::::

length of major axis = 2a = 18

length of minor axis = 2b = 2√31

8 0
3 years ago
I need help lol. please give me an explaination as well ty <3​
Feliz [49]
You need to write it out such as number 8 would be 10x10x10x10 so for every number on top you multiply the number by itself
3 0
3 years ago
Need help asap!! Thank u
fiasKO [112]

Step-by-step explanation:

There is 10 questions which in this case are the trials.

We know we can either get a question right or wrong so the two outcomes are right or wrong.

The probability that a student choose the right outcome is 1/4. since there is one right answer out of 4 chocies.choices.

Yes, the trials likelihood outcome of each outcome is the same. so it's independent

8 0
3 years ago
Read 2 more answers
Please help me answer this!!
tangare [24]

Answer:

Here,

1-4

2-3

3-1

4-2

8 0
3 years ago
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