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Kobotan [32]
3 years ago
6

What is the sum of 2 + 3i and −1+7i A 1 + 10i B 3−4i C 5 + 6i D 9 + 2i

Mathematics
2 answers:
poizon [28]3 years ago
6 0
A is the correct answer


2 + 3i + (-1) + 7i
1 + 10i
Angelina_Jolie [31]3 years ago
3 0
The correct answer is A, have a good day!
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Secant RM intersects secant RN at point R. Find the length of RQ. If necessary, round to the hundredths place.
QveST [7]

Answer:

3 Units

Step-by-step explanation:

Secant RM intersects secant RN at point R.

The secants intersects the circle at points P and Q respectively as seen in the diagram.

To determine the length of RQ, we use the Theorem of Intersecting Secants.

Applying this on the diagram, we have:

RP x RN=RQ X RM

4(4+5)=RQ(RQ+9)

Let the length of RQ=x

4*9=x^2+9x\\36=x^2+9x\\x^2+9x-36=0\\x^2+12x-3x-36=0\\x(x+12)-3(x+12)=0\\(x+12)(x-3)=0\\x+12=0$ x-3=0\\x=-12 or x=3\\Since x cannot be negative$\\x=|RQ|=3

Therefore, length of RQ=3 Units

7 0
3 years ago
Andrea recorded the points she scored in her last eight basketball games. What is the mean absolute deviation of the scores
grandymaker [24]
The mean absolute deviation is a measure of variability in statistics.  This number tells us how close the rest of the numbers are to the mean.  The closer they are to the mean, the more reliable the data is.

The attached work shows how to find the MAD (mean absolute deviation).

Here are the steps:
1.  Find the mean of the data.  2.  Find the difference between the mean and the data values. 3.  Find the average of these differences.

6 0
3 years ago
Andrew makes 11 saves in 2 soccer games. He made 8 saves in the first game. How many saves did Andrew make in the second game?
natita [175]

Answer:

3

Step-by-step explanation:

11-8=3

3 saves were left out of the 11 for the second game

7 0
3 years ago
Read 2 more answers
What is 6.7 * (-2.3) round to the nearest hundred
Alina [70]

Answer:

-15.41

Step-by-step explanation:

6.7*(-2.3) = -15.41

7 0
3 years ago
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Anyone can help me with all of these answers 1-10 ( 18 Points ) ?
Vaselesa [24]

Answer:

1) 14

2) 8

3) 5

4) 11

5) 10

6) 6

7) 10

8) 17

9) 26

10) 18

Step-by-step explanation:

Merry Early Christmas :)

5 0
3 years ago
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