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Kazeer [188]
2 years ago
11

Take a look at the figure. What are

Mathematics
1 answer:
charle [14.2K]2 years ago
3 0

Answer:

D. (2, -2)

Step-by-step explanation:

In a graph, the middle is the origin, and it is zero (0).

Positive sides:

The top side of the y-axis from the origin is positive.

The right side of the x-axis from the origin is positive.

Negative sides:

The bottom side of the y-axis from the origin is negative.

The left side of the x-axis from the origin is negative.

As we see the point labeled "Point A" on the graph, if we count from the x-axis, as we see, and the origin being 0, we notice it is "2". Since the point is on the right side of the x-axis, it is positive. The x-value is 2

When we count from the origin, as zero, we find the point lies in 2, as well. Since the point is on the bottom side of the y-axis, it is negative. Then the y-value is -2.

Option D is our answer.

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Find the roots of the equation x^2+2x+5=0
stiv31 [10]

Answer:

x = - 1 ± 2i

Step-by-step explanation:

we can use the discriminant b² - 4ac to determine the nature of the roots

• If b² - 4ac > , roots are real and distinct

• If b² - 4ac = 0, roots are real and equal

• If b² - ac < 0, roots are not real

for x² + 2x + 5 = 0

with a = 1, b = 2 and c = 5, then

b² - 4ac = 2² - (4 × 1 × 5 ) = 4 - 20 = - 16

since b² - 4ac < 0 there are 2 complex roots

using the quadratic formula to calculate the roots

x = ( - 2 ± \sqrt{-16} ) / 2

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7 0
3 years ago
The rabbit population in a certain area is 200% of last years population there are 1,100 rabbits this year, how many were there
Daniel [21]

Answer:

550

Step-by-step explanation:

1100/2=550

(can I get brainliest please)

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2 years ago
Use the “complete the square” method to rewrite the equation ax 2 + bx + c = 0 in the form ( x – p ) 2 = q .
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The sum of the measures of three angles in a triangle is 180 degrees. The measure of one angle of a triangle is one degree more
sineoko [7]

Answer:

19, 58 and 103

Step-by-step explanation:

Okay. Here we need to convert whatever statements we have into a mathematical expression.

Firstly, let’s give the smallest angle a value of x. Where do we now go from here? The measure of one angle is 1 degree greater than 3 times the size of the smallest angle. This means the value of the second angle is 3x + 1

Now for the third angle, the question stated that the third angle is thirteen degrees less than twice the measure of the second angle. The value for this is: 2( 3x + 1) - 13

Now when we add all these angles, surely, we get a result equal to 180.

x + 3x + 1 + 2(3x + 1) - 13 = 180

4x + 1 + 6x + 2 - 13 = 180

10x - 10 = 180

10x = 190 and x = 19.

Now the measure of the other angles are as follows:

3x + 1 = 3(19) + 1 = 57 + 1 = 58

2(3x + 1) - 13 = 2(58) - 13 = 103

6 0
3 years ago
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