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3 years ago

I am not sure how to figure this out.

Mathematics

1 answer:

umka2103 [35]3 years ago

3 0

Change them all into the same unit of measurement and you will see which is the furthest out by default.

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In triangle ABC, AC=13, BC=84, and AB=85. Find the measure of angle C

r-ruslan [8.4K]

Answer:

90°

Step-by-step explanation:

Angle C = arccos((84²+13²-85²)/(2×84×13))

= arccos(0/2184)

= arccos(0)

= 90°

Answered by GAUTHMATH

3 0

2 years ago

30 + a = 40<br> 40 + b = 30<br> c - 3 = 8<br> d - 3 = 8<br> plz answer.

sesenic [268]

Answer:

A= 10

B= -10

C and D both = 11

4 0

3 years ago

Water has a density of about 0.0361 pounds/cubic inch. You might know that wood floats on water. What can you conclude about the

masya89 [10]

Answer:

Step-by-step explanation:

Objects that float on water have densities less than the density of water; those that do not float on water have densisties greater than the density of water:

Float on water: d < 0.0361 lb/in³ (where d denotes denisity)

Do not float on water: d > 0.0361 lb/in³

7 0

3 years ago

WILL GIVE BRAINLIEST TO RIGHT ANSWER

malfutka [58]

The answer is A! hope this helps! please brainliest!

7 0

3 years ago

Please help quick for 25 points with explanations. Any silly and absurd answers will be reported.

amid [387]

Answer:

Note that the tangents to the circles at A and B intersect at a point Z on XY by radical center. Then, since∠ZAB=∠ZQA and ∠ZBA=∠ZQB. ∠AZB+∠AQB=∠AZB+∠ZAB+∠ZBA=180°. ∴ZAQB is cyclic.But if O is the center of w, clearly ZAOB is cyclic with diameter ZO, so ∠ZQO is 90° ⇒Q is the mid-point of XY.Then, by Power of a Point, PY· PX = PA · PB = 15 and it is given that PY+PX = 11. Thus,PX=(11± $\sqrt{61}$ )/2. So, PQ= $\frac{\sqrt{61} }{2}$ , PQ²= $\frac{61}{4}$ . Thus, the answer is 61+4=65.

Step-by-step explanation:

4 0

3 years ago