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pogonyaev
2 years ago
5

20 pts !!

Mathematics
2 answers:
satela [25.4K]2 years ago
6 0
It’s C have a great day
Ivahew [28]2 years ago
5 0
The answer is C)

Step-by-step explanation:
4x(x+1) - (3x-8)(x+4)
(4x^2+4x) - (3x^2+12x-8x-32)
(4x^2+4x - 3x^2-12x+8x+32)
4x^2-3x^2+4x+8x-12x+32
=x^2+32
Quadratic binomial
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A brace for a shelf has the shape of a right triangle. its hypotenuse is 14 inches long and the two legs are equal in length. ho
maks197457 [2]
To answer this item, we make use of the equation derive from the Pythagorean theorem for right triangles which states that the square of the hypotenuse (the longest side) is equal to the sum of the squares of the two shorter sides. If we let x be the measure of both the shorter sides (we call this as legs), we have,
                         (14 in)² = (x²) + (x²)
Simplifying the equation,
                         196 in² = 2x²
Divide both sides of the equation by 2,
                         98 in² = x²
To get the value of x, we get the square root of both sides of the equation,
                         x = sqrt (98) = 7√2 inches

Hence, the measure of each leg of the right triangle is 7√2 inches or approximately 9.9 inches. 
8 0
3 years ago
*Describe the slopes + the y intercepts of the solutions:
blondinia [14]

1. One Solution: Slopes:1 and -1 y-ints:1 and 2


2. Many: Slopes:1 and 1 y-ints:1 and 1


3. Undefined: Slopes:1 and 1 y-ints:1 and 2

Hope Your Thanksgiving Goes Well, Here's A Turkey


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3 0
3 years ago
Read 2 more answers
AYÚDENME!!!! T.T PORFA
Vitek1552 [10]

Answer:

Por el teorema de 30 grados en un triangulo rectangulo la linea roja es \sqrt{3} veces la longitud del cateto opuesto al angulo de de 30. Por tanto la linea roja será:

l=\sqrt{3}\times3\sqrt{3}=9

Luego

x=9-3=6

7 0
3 years ago
Point M is the midpoint of AB . Through point M a line segment XY is drawn, so that both XA and YB are perpendicular to AB . Pro
GaryK [48]

Answer:

See the proof below

Step-by-step explanation:

Let the line AB be a straight line on the parallelogram.

A dissection of the line (using the perpendicular line X) gives:

AY ≅ BX

Another way will be using the angles.

The angles are equal - vertically opposite angles

Hence the line  AY ≅ BX (Proved)

8 0
3 years ago
Read 2 more answers
Factor the expression x2 − 8x + 16
Anastaziya [24]
<span>x2 − 8x + 16
= (x - 4)(x - 4)
= (x - 4)^2</span>
7 0
2 years ago
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