Answer:
y = 3
Step-by-step explanation:
y = k/x
xy = k
3 × 8 = k
k = 24
x = 8
y = 24/x
y = 24/8
y = 3
Answer:
(2,4), (4,8), (3,6), (5,10)
Choice D
Step-by-step explanation:
I just took the quiz, and they are all equivalent ratios there’d they follow the same pattern on a graph! Hope this helped! :)
Answer:
2/3 miles
Step-by-step explanation:
this question is basically asking you to find the slope between two points: (4,3) and (-2, -1)
how to find slope: (y1 - y2)/ (x1-x2)
so:
y1 =3, y2= -1
x1 = 4, x2 = -2
[3- (-1)]/[4-(-2)]
[3+1]/[4+2]
4/6
2/3 miles
X^2 - y^2 = a
2xy = b
x^2 + y^2 = c
A polynomial identity is an equation that is always true.`1
You can relate x^2 + y^2 with x^2 - y^2 and 2xy in this ways.
1) Step 1:
[x^2 + y^2]^2 = x^4 + 2(xy)^2 + y^4 = c^2
2) Step 2:
[x^2 - y^2] = x^4 - 2(xy)^2 + y^2 = a^2
(2xy)^2 = 4(xy)^2 = b^2
x^4 - 2(xy)^2 + y^2 + (2xy)^2 = x^4 + 2(xy)^2 + y^2
------------------------ ---------- --------------------------
↓ ↓ ↓
a^2 b^2 = c^2
Answer: the identity is
c^2 = a^2 + b^2 equivalent to
(x^2 + y^2)^2 = (x^2 - y^2)^2 + (2xy)^2
THE ANSWER TO YOUR QUESTION IS 257 INCHES IN TOTAL.
BECAUSE, 21 FEET = 252 INCHES + 5 INCHES = 257
