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Lilit [14]
2 years ago
12

Evaluate f(-2) if f(x) = x + 3​

Mathematics
1 answer:
OleMash [197]2 years ago
7 0

Answer:

-2+3=1

Step-by-step explanation:

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2 years ago
What is the explicit formula for the following sequence: -4, -1, 2, 5...?
stiv31 [10]
U have an arithmetic sequence with a common difference of 3

A(n) = -4 + (n-1) * 3
4 0
3 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
Please help! i dont get this
igomit [66]

ANSWER: D.180

EXPLANATION:  A straight angle is 180 degrees

A straight angle changes the direction to point the opposite way. Sometimes people say "You did a complete 180 on that!" ... meaning you completely changed your mind, idea or direction.

8 0
3 years ago
What is the measure of angle 2
PIT_PIT [208]

Answer: 85 degrees

Step-by-step explanation:

4 0
3 years ago
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