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VashaNatasha [74]
3 years ago
14

Find the time (in years) these accounts lasted for.

Mathematics
1 answer:
OLga [1]3 years ago
8 0

9514 1404 393

Answer:

  2 years

Step-by-step explanation:

Use the interest formula with the given information. Solve for t.

  I = Prt

  30 = 500×0.03×t

  30/15 = t = 2 . . . . . . divide by the coefficient of t

The account lasted 2 years.

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The Colorado River is 1,450 miles long. This is 752 miles shorter than the Mississippi River. Write an equation that describes t
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1450-752=698 miles long Mississippi River.

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AABC is reflected over the x-axis. What will be the coordinates of C' ?
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Step-by-step explanation:

4 0
3 years ago
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7. A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Show your work.
ANTONII [103]
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5 0
3 years ago
Suppose you take a 15 question True or False quiz and you guess on every problem. You only get 3 correct. (a) What is the probab
lana66690 [7]

Answer:

0.648

No, that is not an unusually low number of correct guesses.

Step-by-step explanation:

Suppose you take a 15 question True or False quiz and you guess on every problem. You only get 3 correct. Then

  • p=\dfrac{3}{15}=\dfrac{1}{5}=0.2 - correct;
  • q=1-p=1-0.2=0.8 - o\incorrect.

The probability of getting 3 or fewer correct guesses is

P(\text{3 or fewer})\\=P(0)+P(1)+P(2)+P(3)\\ \\=C^{15}_0p^0q^{15-0}+C^{15}_1p^1q^{15-1}+C^{15}_2p^2q^{15-2}+C^{15}_3p^0q^{15-3}\\ \\=1\cdot q^{15}+15pq^{14}+105p^2q^{13}+455p^3q^{12}\\ \\=(0.8)^{15}+15\cdot 0.2\cdot (0.8)^{14}+105\cdot (0.2)^2\cdot (0.8)^{13}+455\cdot (0.2)^3\cdot (0.8)^{13}\\ \\\approx 0.648

Using the criteria that a number 3 is unusually low if P(3 or fewer) ≤ 0.05, we can state that 3 is not an unusually low number of correct guesses.

5 0
3 years ago
What is the equation, in point-slope form, of the line that is perpendicular to the given line and passes through the point (2,
Sphinxa [80]
Ur perpendicular line will have -1 as the slope

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now sub
y - 5 = -1(x - 2) can be written like : y - 5 = -(x - 2)
7 0
4 years ago
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