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beks73 [17]
3 years ago
10

Question 1 Imaginary & Complex Numbers-Addition & Subtraction Solve the following: (7 – 21) – (2+61) = O 9 +82 O 5 - 42

0 5 - 82 0 5+ 8i​
Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0

Answer:this did not work for me

Step-by-step explanation:

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What is the equation of the following line? Be sure to scroll down first to see all answer options.
Serjik [45]

Answer:

<h3>The answer is option F</h3>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To calculate the equation of the line first find the slope

Slope of the line using points

(0 , 0) and (4 , -2) is

m =  \frac{ - 2 - 0}{4 - 0}  =  \frac{ - 2}{4}  =  -  \frac{1}{2}

Now use the formula

y - y1 = m(x - x1) to find the equation of the line using any of the points

Using point (0,0)

That's

y - 0 =   - \frac{ 1}{2} (x - 0)

The final answer is

y =  -  \frac{1}{2} x

Hope this helps you

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Helen [10]

Answer:

0

Step-by-step explanation:

5^2-4(5)-5=2(5)-10

0=0

3 0
3 years ago
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Please help answer the math question below
Ksju [112]

Answer:

C

Step-by-step explanation:

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Use axis of symmetry formula to find the axis of symmetry of the following equation.
FinnZ [79.3K]

Answer:

-5

Step-by-step explanation:

The square of x is written x^2.  Thus, we have x^2 + 10x + 26 here.  Using the axis of symmetry formula x = -b/(2a), we get:

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----- = -5

2(1)

5 0
4 years ago
Find the measure of one interior angle for the following regular polygon
shusha [124]

Answer:

Step-by-step explanation:

I am assuming that by "interior" angle you do not mean the central angle.

This is a 10-sided polygon, a decagon. That means that there are 10 triangles that can extend from the center, with their sides being equal to the radii of the decagon. If we extract one of these triangles we can find what the interior angle is. The vertex angle measures 360/10 which is 36.

Split this triangle in half from the vertex to the base, creating a right triangle. The vertex angle is also split in half, making this angle (the vertex angle is the one at the top of the triangle) 18 degrees. We already know that one angle inside this right triangle is 90 (definition of a right triangle) and to find the other one, we apply the Triangle Angle-Sum Theorem:

180 - 18 - 90 = 72 degrees. That is the measure of the base angle that is NOT the right angle, obviously.

4 0
3 years ago
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