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DanielleElmas [232]
3 years ago
13

Need help with this khan academy question. Plus minus square root of negative nine equals plus or minus

Mathematics
1 answer:
klemol [59]3 years ago
3 0

Answer:

3i

Step-by-step explanation:

3i x 3i = -9

-3i x -3i = -9

Therefore the square root of -9 is 3i or -3i

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Pls answer quick thank you soooooooo much
Tju [1.3M]

Answer:

4

Step-by-step explanation:

<u>Step 1:  Find the constant </u>

A constant is a number in a function that never changes.  In this example:  2x^2 + 4x + 7, the constant is 7.

Therefore, the constant in 6x^3y + 7x^2 + 5x + 4

The answer is 4 beause it never changes.

Answer:  4

3 0
4 years ago
Find the slope of the line through each pair of points (-17, 11) , (-12, 9) 
ad-work [718]

Answer:

M = -2/5

Step-by-step explanation:

To find the slope of a line when you know two points, use the following formula.

M = y₂ - y₁ ÷ x₂ - x₁

M = 9 - 11 ÷ -12 - (-17)

M = -2 ÷ 5

M = -2/5

Hope that helps.

3 0
3 years ago
A(-3,2) B(5,-4) midpoint is (1,-1)
lesya [120]
CHECK:\\\\the\ midpoint\ AB:\left(\frac{-3+5}{2};\ \frac{2-4}{2}\right)=\left(\frac{2}{2};\ \frac{-2}{2}\right)=(1;-1)\\-------------------------------\\C(x;\ y)\\\\the\ midpoint\ AC:\left(\frac{-3+x}{2};\ \frac{2+y}{2}\right)\\\\B\ is\ the\ midpoint\ AC\ then:\\\\\frac{-3+x}{2}=5\ and\ \frac{2+y}{2}=-4\\\\-3+x=10\ and\ 2+y=-8\\\\x=10+3\ and\ y=-8-2\\\\x=13\ and\ y=-10\\\\Solution:C(13;-10).
7 0
3 years ago
Betty bought six bags of rice when a total of 30 pounds what is the rate of the number of bags to pounds
finlep [7]

Answer:

5 pounds per bag simplified from 30 pounds per 6 bags

Step-by-step explanation:

6 bags of rice is 30 pounds. This means 30 pounds per 6 bags which simplifies to 5 pounds per 1 bag.

3 0
4 years ago
Read 2 more answers
Based on the graph, which statement BEST describes what is happening to the temperature over time?( picture 1 )
nevsk [136]
1. A.
None of the other answers, looking at the graph, make sense.

2. B.
Used distance formula.
sqrt[(0+8)^2 + (6-0)^2]
sqrt[8^2 + 6^2]
sqrt[64 + 36]
sqrt[100]
10

3. A.
Domain = x
(1,0) , (3,0) , (5,0) , (7,0)
Range = y
(0,2) , (0,4) , (0,6) , (0,2)
{(1,2) , (3,4) , (5,6) , (7,2)}
6 0
3 years ago
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