All categories

3 years ago

If the measure of DEF is 65 what is the measure of DE. PLEASE HELP FAST

Mathematics

2 answers:

Wittaler [7]3 years ago

8 0

EF is tangent to the circle we'll assume; otherwise there's no progress.

Call the center C. ECD is isosceles, formed from two radii and the chord.

Angle CED is complementary to DEF

CED = 90 - 65 = 25 degrees

CDE is congruent, isosceles triangle and all that: CDE=25

That leaves DCE=180-25-25=130 degrees

That's the measure of arc DE as well:

Answer: 130 degrees, choice A

kotykmax [81]3 years ago

6 0

Answer:

130

Step-by-step explanation:

For Apex

You might be interested in

HELP PLZ I NEED THIS DONE ASAP

kodGreya [7K]

$\text{Given that,}\\\\y^2 +9y +3 \\\\\text{when}~ y = -2,\\\\(-2)^2 +9(-2) +3 = 4-18+3 = 7 -18 = -11,$

8 0

2 years ago

What is the domain of this graph

Naddik [55]

Answer:

Step-by-step explanation:

b is the range

8 0

3 years ago

What is the absolute value of -3 1/2?

Lana71 [14]

Answer:

The absolute value of -3 1/2 is 3 1/2.

Step-by-step explanation:

The absolute value of a number is its distance from 0.

In this case the absolute value of -3 1/2 is 3 1/2.

Another way to write is I-3 1/2I

Using the absolute value bar

Please rate this and please give brainliest. Thanks!!!

Appreciate it! : )

And always,

SIMPLIFY BANANAS : )

6 0

3 years ago

Can someone simplify (3x)^4

RSB [31]

Answer:

81x^4

Step-by-step explanation:

Apply the product rule to 3x

3^4x^4

Raise 3 to the power of 4

81x^4

please mark me brainliest!

3 0

3 years ago

-36y=x^2 The directrix of the parabola is:

Aleksandr-060686 [28]

Here, the equation of parabola is: (-36y)=x^2
The standard form of parabola is:

(X-h)^2=4p(y-k).
According to given equation, vertex = (0,0) and p = -9
This a vertical parabola opening down, because p = -9 here.
Therefore ditectrix will be y= -9

6 0

3 years ago