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nydimaria [60]
3 years ago
12

Question 9 (0.5 points)

Mathematics
1 answer:
exis [7]3 years ago
6 0
The correct answer is C. 2,400

Explanation- I’m a freshman trust me I know!
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RSB [31]

Answer:

5. it could be 1,1,2,2

Step-by-step explanation:

idk

5 0
3 years ago
Factor Completely: 10x + 15
tankabanditka [31]

Answer:

5(2x + 3)

Step-by-step explanation:

10x + 15 \\  \\  = 2 \times 5 \times x + 3 \times 5 \\ ( take \: common \: factors \: out )\\  = 5(2 \times x + 3) \\  \\  = 5(2x + 3)

3 0
2 years ago
Read 2 more answers
A screening test for a disease shows a positive result in 91% of all cases when the disease is actually present and in 7% of all
Jobisdone [24]

Answer:

0.0713 = 7.13% probability that the result is positive.

Step-by-step explanation:

Probability of a positive test:

91% of 1/650(has the disease).

7% of 1 - 1/650 = 649/650(does not have the disease). So

p = 0.91\frac{1}{650} + 0.07\frac{649}{650} = \frac{0.91 + 0.07*649}{650} = 0.0713

0.0713 = 7.13% probability that the result is positive.

4 0
2 years ago
The following are score earned by 15 college students on a 20-point math quiz. (a) calculate the mean, median, and mode scores.
Softa [21]

Answer:

(a) 12.87; 14; 18; (b) median  

Step-by-step explanation:

(a) Statistics

(i) Mean

The mean is the sum of all the data points divided by the number of points.

\begin{array}{rcl}\text{Mean} & = & \dfrac{0 + 2 + 3 + 12 + 12 + 13 + 14 + 14 + 15 + 15 + 18 + 18 + 18 + 19 + 20}{15}\\\\& = & \dfrac{193}{15}\\\\& = & \mathbf{12.87}\\\end{array}

(ii) Median

The median is the middle value in your list of observations.

0, 2, 3, 12, 12, 13, 14, 14, 15, 15, 18, 18, 18, 19, 20

Median = 14

(iii) Mode

The mode is the value that appears most often in your list of observations.

0, 2, 3, 12, 12, 13, 14, 14, 15, 15, 18, 18, 18, 19, 20

Mode = 18

(b) Most representative measure

The mean is dragged down by three low values. The median is the measure that is most representative of the data.

The histogram below shows the distribution of your data.

8 0
3 years ago
I need help with this question it’s due today please help.
11Alexandr11 [23.1K]

Answer:

7 in

Step-by-step explanation:

6 0
3 years ago
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