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3 years ago

Please help I need to answer this question and I am lost

Mathematics

2 answers:

marin [14]3 years ago

8 0

Answer: vv hvvh hjhbhh

Step-by-step explanation:

kirill115 [55]3 years ago

8 0

Answer:

Step-by-step explanation:

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Point D is rotated 180 degrees using B as the center. Explain why the image of D must lie on the ray BA.

Igoryamba

Answer:

The image of $D$ must lie on the ray $BA$ , since ray $BA$ is antiparallel to ray $BD$ . That is, the angle between both rays is 180 degrees.

Step-by-step explanation:

Let be $D'$ the image of $D$ such that $D$ is rotated 180 degrees counterclockwise with $B$ as center of rotation.

$D'$ must lie on the ray $BA$ , since ray $BA$ is antiparallel to ray $BD$ . That is, the angle between both rays is 180 degrees.

5 0

3 years ago

In triangle $ABC,$ $AB = BC = 17$ and $AC = 16.$ Find the circumradius of triangle $ABC.$

sweet-ann [11.9K]

Answer:

$R = 9.63\ units$

Step-by-step explanation:

Given

$AB = BC = 17$

$AC = 16$

Required

Determine the circumradius, R

The circumradius is calculated as follows;

$R = \frac{AB * BC * AC}{\sqrt{(AB + BC + AC)(AB + BC - AC)(AB + AC - BC)(AC + BC - AB)}}$

Substitute the values of AB, BC and AC

$R = \frac{17 * 17 * 16}{\sqrt{(17 + 17 + 16)(17 + 17 - 16)(17 + 16 - 17)(16 + 17 - 17)}}$

Evaluate the denominator

$R = \frac{17 * 17 * 16}{\sqrt{(50)(18)(16)(16)}}$

$R = \frac{4624}{\sqrt{230400}}$

Take square root of 230400

$R = \frac{4624}{480}$

$R = 9.63\ units$ (Approximated)

Hence, the circumradius is 9.63

6 0

3 years ago

Write True or False. The transformation is a reflection. True or False

Jet001 [13]

Answer:

False

Step-by-step explanation:

This transformation is a rotation. If it were a reflection the moon shape would be at a 180 degree flip but instead is at a 90 degree rotation.

Hope this helped!

3 0

3 years ago

What does a supplementary angle look like

Keith_Richards [23]

Answer:

It has no special appearance.

Step-by-step explanation:

Any angle of measure 180° or less is supplementary to some angle. A supplementary angle is one that is the difference between 180° and the angle you have. That is, two supplementary angles total 180°.

Supplementary angles are readily identifiable in a number of geometries. Adjacent angles of a parallelogram are supplementary; linear angles are supplementary. Same-side interior angles where a transversal crosses parallel lines are supplementary.

8 0

3 years ago

Find the sum of 2x+1 and 5x

aliya0001 [1]

Hey!

This could be rewritten as:

2x + 1 + 5x

We can add like terms together:

7x + 1

5 0

3 years ago

Read 2 more answers