The population of the bacteria after 40 hours is 207 after 40 hours?
Answer:
Each student can read 2 pages per minute
Step-by-step explanation:
Sin=opposite/hypotenuse
The opposite of B is 3 and the hypotenuse is 5.
Therefore the answer for 1 is D 3/5.
cos=adjacent/hypotenuse
The adjacent of B is 4 and the hypotenuse is 5.
Therefore the answer for 2 is B 4/5.
Answer:
(x, y) = (-2, 7), (0, -1), (3, -13), (-1, 3)
Step-by-step explanation:
To fill in the y-values, you need to put the x-value in the equation and evaluate.
<u>for x=0</u>
y = -4(0) -1 = -1
<u>for x=-1</u>
y = -4(-1) -1 = 4 -1 = 3
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To fill in the x-values, we can solve for x and then do as we did above.
y = -4x -1
y +1 = -4x . . . . add 1
-(y +1)/4 = x . . . divide by -4
<u>for y=7</u>
x = -(7 +1)/4 = -2
<u>for y=-13</u>
x = -(-13+1)/4 = -(-12/4) = 3
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Then the table is ...
Use the quadratic formula:
x = [-b +-sq root (b^2 -4ac)] / 2a
a=1 b=2 c=-35
x = [-2 +- sq root (4 +140)] / 2
x = [-2 +- 12] / 2
x1 = (-2 +12) / 2
x1 = 5
x2 = [-2 -12] / 2
x2 = -7