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KATRIN_1 [288]
3 years ago
10

Which of the following justifies if the quadrilateral below is a parallelogram?

Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

C. Angles are congruent

Step-by-step explanation:

Airida [17]3 years ago
3 0

Answer: d) diagonals bisect

i believe this is the right answer because the other ones aren't right.

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What is the line of SYMMETRY for they PARABLLA who’s equation is y=3x2+24x-1?
Arada [10]

Answer

The line of symmetry x = -4

Step by step explanation

Here we have to use the formula.

The symmetry of a parabola x = -b/2a

Now compare the given equation y = 3x^2 + 24x -1 with the general form y = ax^2 + bx + c and identify the value of "a" and "b"


Here a = 3 and b = 24. Now plug in these values in to the formula to find the line of symmetry.

x = -24/ 2(3)

x = -24/6

x = -4

Therefore, the line of symmetry x = -4.

Thank you.

6 0
3 years ago
Helppppppp pleaseee
Viktor [21]

Answer:

x=2\sqrt{5}

Step-by-step explanation:

If that is a square, then all sides are the same. Therefore, it's a \sqrt{10} by \sqrt{10} shape. We'll use Pythagorean Theorem to find the diagonal.

a^2+b^2=c^2\\\sqrt{10}^2+ \sqrt{10}^2=x^2\\10+10=x^2\\20=x^2\\\sqrt{20}=x\\\sqrt{4*5}=x\\ 2\sqrt{5}=x

Since it's not a fraction, there is no denominator to rationalize. Let me know if you have any other questions!

5 0
2 years ago
what is the correct way to write three hundred nine million, fifty-eight thousand, three hundred four?
oksian1 [2.3K]

-- sitting erect, shoulders back, chest out, head up, spine straight

-- pen held loosely and comfortably in your hand

-- forearm resting lightly on the table

-- digit characters formed neatly and clearly, with uniform size and slant

                <em>3 0 9, 0 5 8, 3 0 4</em> .


3 0
3 years ago
Simplify the linear expression by subtracting,
mr Goodwill [35]
The answer is x = 1.5
8 0
3 years ago
What is the axis of symmetry for f(x) = -3x2 + 18 - 7
solong [7]

The vertex form:

y=a(x-h)^2+k\\\\(h,\ k)-vertex

The axis of symetry is x = h.

y=ax^2+bx+c\to h=\dfrac{-b}{2a}

We have

f(x)=-3x^2+18x-7\to a=-3,\ b=18,\ c=-7

Substitute:

h=\dfrac{-18}{(2)(-3)}=\dfrac{-18}{-6}=3

<h3>Answer: x = 3</h3>
6 0
4 years ago
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