Density = mass / volume
4.5 = mass / .4
mass = 4.5*.4
mass = 1.8 grams
To find the base you can use the tangent function.
tan x = opp/adj
tan 40 = 12/base
base = 12/tan 40
base = 14.30 m
Hope this helps :)
Answer:
look for the x-intercepts
Step-by-step explanation:
A "zero" is a value of x where the function value is zero. On a graph, that point is where the graph meets the x-axis. Every x-intercept is a zero of the function.
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If there are no x-intercepts, then there are no real zeros. The roots (zeros) will be complex.
(3x+3) + (4x + 2)
------------------------- = 13
2
13(2) = (3x+3) + (4x+2)
26 = 3x + 3 + 4x + 2
26 = 7x + 5
26-5 = 7x
21 = 7x
x = 21 ÷ 7
x = 3