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ANEK [815]
3 years ago
9

In online database charges the registration fee of $19 plus a monthly membership of $8 after a period of time your bill is $67 h

ow many months were you a member for
Mathematics
1 answer:
solong [7]3 years ago
4 0

Answer:

6 months

Step-by-step explanation:

First, we subtract the $19 registration fee from the total, because that doesn't tell us how many months you are a member for. What's left is $48, so we divide $48 by $8, and we're left with 6. You have been a member for 6 months.

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Rounding off to the nearest thousand<br><br> 1627=?????
sasho [114]

Answer:

2,000

Step-by-step explanation:

Your choices are 1,000 or 2,000 because 1672 is between those two numbers.  Which is 1672 closer to ?  2,000

8 0
2 years ago
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Jason is the captain of his basketball team the list below shows how many points Jason scored in each of the first 10 games 18,2
Anika [276]
A. The scores in order are: 10, 12, 13, 14, 14, 16, 18, 23, 24, 26. The range is 26 - 10 = 16. The mean is the sum divided by 10, which is 17. The median is between 14 & 16, which is 15. The mode is 14, since it is repeated twice.
B. The variance is calculated by subtracting each score from the mean, squaring, and adding all such squares. Then divide by the number of terms (10) to get 27.6 Take the square root to get the standard deviation, which is 5.25.
C. This is for a population, since these are all 10 games that Jason played. (If it were a sample, we would divide by 9 only)

D. The mean of 17 is higher than the median of 15 and the mode of 14. This implies a left-skewed distribution. However, the SD of 5.25 is quite high relative to the mean of 17, so the distribution is not that clearly defined yet (more data points would make it clearer).
4 0
3 years ago
1. Suppose that cos B = 0.68. What is the value of sin(a)? Explain.
Papessa [141]

The value of Sin(a) suppose that Cos B = 0.68 in which case, a + B = 90° is; 0.68.

<h3>Trigonometry</h3>

First, when we have two angles, whose sum equals, 90°.

In essence, Since the algebraic sum of angles A and B is 90°;

  • A + B = 90.

  • B = 90 -A.

By trigonometric identity;

  • Sin A = Cos (90 - A)

Where; (90 - A) = B.

Therefore; Sin A = Cos B = 0.68.

Read more on trigonometry;

brainly.com/question/20519838

5 0
2 years ago
If b(x) = -2(x​​-50), what is the value of b(20)?
Alex777 [14]

Answer:

60

Step-by-step explanation:

-2(20​​-50)

-40 + 100 = 60

8 0
2 years ago
Which is the standard form of the equation of the parabola that has a vertex of (3, 1) and a directric of x = -2?
vagabundo [1.1K]
Check the picture below.  So,the parabola looks like so, notice the distance "p". since the parabola is opening to the right, then "p" is positive, thus is 5.

\bf \textit{parabola vertex form with focus point distance}\\\\&#10;\begin{array}{llll}&#10;\boxed{(y-{{ k}})^2=4{{ p}}(x-{{ h}})} \\\\&#10;(x-{{ h}})^2=4{{ p}}(y-{{ k}}) \\&#10;\end{array}&#10;\qquad &#10;\begin{array}{llll}&#10;vertex\ ({{ h}},{{ k}})\\\\&#10;{{ p}}=\textit{distance from vertex to }\\&#10;\qquad \textit{ focus or directrix}&#10;\end{array}\\\\

\bf -------------------------------\\\\&#10;\begin{cases}&#10;h=3\\&#10;k=1\\&#10;p=5&#10;\end{cases}\implies (y-1)^2=4(5)(x-3)\implies (y-1)^2=20(x-3)&#10;\\\\\\&#10;\cfrac{1}{20}(y-1)^2=x-3\implies \boxed{\cfrac{1}{20}(y-1)^2+3=x}

8 0
3 years ago
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