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yan [13]
3 years ago
13

Please help! I don't know this!

Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0
I know its not the third one (the right angle)
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Please help!
tensa zangetsu [6.8K]
If the parabola has y = -4 at both x = 2 and x = 3, then since a parabola is symmetric, its axis of symmetry must be between x = 2 and x = 3, or at x = 5/2. Our general equation can then be:
y = a(x - 5/2)^2 + k
Substitute (1, -2): -2 = a(-3/2)^2 + k
-2 = 9a/4 + k
Substitute (2, -4): -4 = a(-1/2)^2 + k
-4 = a/4 + k
Subtracting: 2 = 2a, so a = 1. Substituting back gives k = -17/4.
So the equation is y = (x - 5/2)^2 - 17/4
Expanding: y = x^2 - 5x + 25/4 - 17/4
y = x^2 - 5x + 2 (This is the standard form.)
5 0
3 years ago
Use the diagram to find the value of the median of the figure. 15.25 22.25 13.64 19.64
MariettaO [177]

Answer:

your median is 17.445

Step-by-step explanation:

put them in order least to greatest

13.64,15.25,19.64,22.25

15.25+19.64=34.89

34.89/2=17.445

7 0
3 years ago
Read 2 more answers
Find the distance between the two points. (5,-3) (-4,7)
STatiana [176]

Answer:

-9.4

Step-by-step explanation:

8 0
3 years ago
WITH PICTURE!!3. What is the value of x in the regular polygon below? (3 points)
monitta

Answer: FIRST OPTION.

Step-by-step explanation:

Regular polygons are those polygons whose sides are equal in length and whose angles are all equal.

By definition each interior angle of a Regular polygon,is:

\frac{180 ( n -2 )}{n}  (In degrees)

Where "n" is the number of sides of the polygon.

Observe the Regular polygon given in the exercise.

Since it has 6 sides, you can conclude that it is an Hexagon. Then:

n=6

Substituting into  \frac{180 ( n -2 )}{n}  and evaluating, you get:

\frac{180 ( 6 -2 )}{6}=120\°

Knowing this, you can write the following equation:

3x=120

Finally, you must solve for "x" in order to find its value. This is:

x=\frac{120}{3}\\\\x=40

8 0
3 years ago
Can someone pls answer this?❤️
nata0808 [166]

Answer:

i want to say the answer is A

Step-by-step explanation:

8 0
3 years ago
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