The square of a positive integer added to 4 times the integer is 437..
x2 + 4x = 437
I chose to do this by completing the square..
x2+4x+4 = 437 + 4
(x+2)2 = 441
Take square root of both sides
x+2 = ±√441
x = -2 ± 21
x = -23 or x = 19
x = 19
Answer:
f(x) = 2(1/3)^x
Step-by-step explanation:
To find the parameters of this exponential equation, follow the instructions given in the hint.
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b = 6/18 = 1/3 . . . . . divide 6 by 18 to find 'b'
18 = a(1/3)^-2 . . . . . substitute a point and 'b' in the equation
18(1/3)^2 = a = 2 . . . . multiply by (1/3)^2
The equation is ...
f(x) = ab^x
f(x) = 2(1/3)^x
Answer:
uppercase B = StartFraction 3 uppercase V Over h
Step-by-step explanation:
The formula for the volume (V) of a pyramid is:
V = 1/3*B*h
where B is the are of the base and h is the height. We can isolate B, as follows:
multiply by 3 at both sides
V*3 = 1/3*B*h*3
divide by h at both sides
V*3/h = B*h/h
V*3/h = B
I can't see pictures, but I'll try.
To find area, you multiply the two dimensions. To find a dimension with the area and a dimension, you divide the area by the dimension provided.
(2x+10)(2x+15)
x=2
2(2)+10x2(2)+15
4+10x4+15
14x19
266
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hope it helps
