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klemol [59]
3 years ago
11

Help on this question it’s for khan academy ☹️☹️ pls

Mathematics
2 answers:
Zigmanuir [339]3 years ago
8 0
Answer is 8 so yupppppppppp
Hunter-Best [27]3 years ago
7 0

Answer:

8

Step-by-step explanation:

80^2=8^2+x^2

80-64=x^2

16=x^2

x=4

4+4=8

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Quadratic Formula! Please help!
FrozenT [24]

Answer:

(-b±√(b²-4ac))/(2a)

where,

ax²+bx+c=0

a, b, c = constants, where a ≠ 0

x = the unknown

Step-by-step explanation:

8 0
3 years ago
Which algebraic expression shows the average melting points of helium, hydrogen, and neon if h represents the melting point of h
LenKa [72]
Average = mean = sum of the values / number of data

Values = h, j, and k

Number of data = 3

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=> Answer: option c. [h+j+k] over 3
4 0
3 years ago
Read 2 more answers
15 points. Please answer as soon as possible.
abruzzese [7]

Answer:

A. \frac{(a-b)^{2} +b^{2} }{a^{2}}

Step-by-step explanation:

So to get the area of a square, we need to find the length of one side.  

We know the length of the larger square is a, so the area of the larger cube is a^{2}

We can find the length of a side of the smaller square by using pythagoreans theorem to find the hypotenuse of the triangle formed in the bottom left corner.  The length of one side along the x axis is a - b, and the length of the other side, along the y-axis, is b.

We can plug it into pythagoreans theorem to get

(a-b)^{2} +b^{2} = C^{2} (C represents the length of one side of the smaller square, and the hypotenuse of the triangle)

C = \sqrt{ (a-b)^{2} +b^{2}}

The area of the smaller triangle is C squared to the area of the smaller triangle is

(a-b)^{2} +b^{2}

To get the ratio of the smaller square in comparison to the larger square we divide the area of the smaller square by the area of the larger square.

So the ratio should be

\frac{(a-b)^{2} +b^{2} }{a^{2}}

8 0
3 years ago
Expanded notation for 55,032178
fenix001 [56]
74746394738284729274638292
8 0
3 years ago
Azizah got 1 for the slope of the line through 2 points (1,2) and (4,-1). Explain to her the mistake she made and how to find th
ololo11 [35]
(1,2)(4,-1)
slope = (y2 - y1) / (x2 - x1)
slope = (-1 - 2) / (4 - 1) = -3/3 = -1

the slope is -1......I am not sure of the mistake.....unless she just added (-1 - 2) and got 3 instead of -3.......or when dividing -3/3....she maybe forgot about the negative sign
5 0
4 years ago
Read 2 more answers
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