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3 years ago

Please help! I need this done!

Mathematics

1 answer:

amid [387]3 years ago

4 0

Answer:

2. c

3. c

4. cx

5. c(c-x)

6. cx

7. c(c-x)

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What is 3.6 in simplest form as a fraction

Ilia_Sergeevich [38]

The answer is 3 3/5.

3 0

3 years ago

Geometry (15) What are the properties of the incenter of a triangle?

aleksklad [387]

The incenter of a triangle is equidistant from all sides of the triangle

The incenter is the center of the biggest circle that can be drawn in the triangle, and is called incircle

The incircle will be tangent to all sides of the triangle.

Observation:
In an equilateral triangle the incenter, circumcenter, and centroid are all the same

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4 years ago

Given: ∠A and ∠B are complementary angles.

Eddi Din [679]

Answer:

- For the statement $-3x=24$ , the reason is: Subtraction property of Equality

- For the statement $x=-8$ , the reason is: Division property of Equality.

- For the statement $m\angle B=-6(-8)-39$ , the reason is: Substitution property of Equality.

Step-by-step explanation:

The missing pictures are attached.

We must remember that:

- The Subtraction property of Equality states that:

$If\ a=b,\ then\ a+c=b+c$

- The Division property of Equality states that:

$If\ a=b,\ then\ \frac{a}{c}=\frac{b}{c}$

- The Substitution property of Equality states that:

$If\ a=b,\ then\ b\ can\ replace\ a$

Knowing this properties we can identify the missing reasons that correctly complete the proof.

- For the statement $-3x=24$ , the reason is:

Subtraction property of Equality

(Because it is obtained by subtracting 66 from both sides of $-3x+66=90$ )

- For the statement $x=-8$ , the reason is:

Division property of Equality

(Because it is obtained by dividing both sides of $-3x=24$ by -3)

- For the statement $m\angle B=-6(-8)-39$ , the reason is:

Substitution property of Equality

(Because it is obtained by substituting the value of "x" into $m\angle B=-6x-39$ )

7 0

4 years ago

Which of the following is not preserved under a reflection?

Delicious77 [7]

Reflection is the way of projecting a mirror figure to the other side of the axis of symmetry. When reflection is done, like what we can observe in the mirrors, the properties that can be observed are parallelism, colinearity and angle measure. Orientation is not preserved. Answer is C

4 0

3 years ago

Given AE = EC , for what value of x is quadrilateral ABCD a parallelogram?

natali 33 [55]

Answer:

upper and lower results have to be the same

so set them equal

5x = 2x + 1

subtract 2x on each side

3x = 1

devide each side by 3

x = 1/3

You are welcome

6 0

3 years ago