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Anastasy [175]
3 years ago
11

Decide if the following biconditional statement

Mathematics
2 answers:
garik1379 [7]3 years ago
7 0

true because if you add up 4 90°you get 360

NNADVOKAT [17]3 years ago
7 0
True
Explanation: right angles are 90º
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HELP ME PLEASE !!!!!!!!!
mojhsa [17]

Answer:

Please find the answer below:

Step-by-step explanation:

Ray : No

Vertex : No

Angle : No

Parallel Lines : No

Parallel Planes : No

Co planar  Points: A N B C F

Segment Adding Postulates : AN and NB

Perpendicular Lines : No

6 0
3 years ago
Lyra and Donna are testing the two-way radios they built for their high school science project. Lyra goes to the top of a buildi
9966 [12]
They will be forming a right triangle. 

long leg is the height of Lyra. 22 meters high from the entrance.
short leg is the distance of Donna. 50 meters from the entrance.
We need to solve for the hypotenuse or the range of communication.

a² + b² = c²
22² + 50² = c²
484 + 2500 = c²
2,984 = c²
√2,984 = √c²
54.63 = c

The range of communication for the two radios is 55 meters.
8 0
3 years ago
(-8+22)-(-7)+(-9)<br> dx
Xelga [282]

Answer: 12 is the answer

Step-by-step explanation: Brainliest please

8 0
4 years ago
Sin(5x)sin(3x)
LekaFEV [45]

\bf \textit{Product to Sum Identities} \\\\ sin(\alpha)sin(\beta)=\cfrac{1}{2}[cos(\alpha-\beta)\quad -\quad cos(\alpha+\beta)]\qquad \leftarrow \textit{we'll use this one} \\\\\\ cos(\alpha)cos(\beta)=\cfrac{1}{2}[cos(\alpha-\beta)\quad +\quad cos(\alpha+\beta)] \\\\\\ sin(\alpha)cos(\beta)=\cfrac{1}{2}[sin(\alpha+\beta)\quad +\quad sin(\alpha-\beta)]

\bf cos(\alpha)sin(\beta)=\cfrac{1}{2}[sin(\alpha+\beta)\quad -\quad sin(\alpha-\beta)] \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ sin(5x)sin(3x)\implies \cfrac{cos(5x-3x)-cos(5x+3x)}{2}\implies \cfrac{cos(2x)-cos(8x)}{2}

6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%206%20%3D%20-%20%20%20%5Cfrac%7Br%7D%7B3%7D%20%20%20%5C%3A%20solve%20%5C%3A%20for%20%5C%3A%20
Fed [463]

r = - 18

multiply both sides by 3 to eliminate the fraction

3 × 6 = - r ⇒ 18 = - r ⇒ r = - 18



8 0
3 years ago
Read 2 more answers
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