Help me please I dont know the answer..
2 answers:
8x + y = -8
For this case what you should do is see the intersections with each of the axes and then join the ordered pairs.
We have then:
For the x axis:
y = 0
Substituting in the equation:
8x + (0) = - 8
8x = -8
x = -1
For the y axis:
x = 0
Substituting in the equation:
8 (0) + y = -8
0 + y = -8
y = -8
We graph the ordered pairs:
(x1, y1) = (- 1, 0)
(x2, y2) = (0, -8)
Answer:
See attached graph.
For this case what you should do is see the intersections with each of the axes and then join the ordered pairs.
We have then:
For the x axis:
y = 0
Substituting in the equation:
8x + (0) = - 8
8x = -8
x = -1
For the y axis:
x = 0
Substituting in the equation:
8 (0) + y = -8
0 + y = -8
y = -8
We graph the ordered pairs:
(x1, y1) = (- 1, 0)
(x2, y2) = (0, -8)
Answer:
See attached graph.
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Answer:
10 years and 10 months.
Step-by-step explanation:
The annually interest rate (ia) can be converted by monthly (im) by the equation:
(1 + im)¹² = 1 + ia
(1 + im)¹² = 1 +0.01
(1 + im)¹² = 1.001 (putting ln in both sides)
ln(1 + im)¹² = ln1.001
12*ln(1 + im) = 1.0x10⁻³
ln(1 + im) = 8.33x10⁻⁵(applying "e in both sides)
1 + im = 1.00083
im = 0.00083 = 0.083%
For a investimenting, the final amount (A) can be calculated by:
Where R is the amount invested per month, i is the interest, and n the number of months:
160000 = 400 *
= 400
1.00083ⁿ - 1 = 0.332
1.00083ⁿ = 1.332 (applying ln in both sides)
n*ln1.00083 = ln1.332
8.3x10⁻⁴n = 0.2867
n = 345.4 months
345.4 months *1 yea12 months = 10 years and 10 months.