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3 years ago

I need the answers please help 60points

Mathematics

2 answers:

enyata [817]3 years ago

6 0

In 22, you're looking for the vertical height of the triangle. You're given the angle opposite the side you want to find (which I'll call $x$ ) and the length of the hypotenuse. This sets you up with the relation

$\sin2^\circ=\dfrac x{1600}\implies x\approx55.84\text{ m}$

In 23, you're given a similar situation, except now you're looking for the angle (I'll call it $\theta$ ) in the triangle opposite the side denoting the height of the airplane. So this time,

$\sin\theta=\dfrac{1500}{5000}=\dfrac3{10}\implies\theta=\arcsin\dfrac3{10}\approx17.46^\circ$

stepan [7]3 years ago

6 0

Answer:

Step-by-step explanation:

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3 years ago

A coordinate plane. Which expression could help you find the distance between (10, 4) and (–6, 4)?

nirvana33 [79]

Answer:

d=16

Step-by-step explanation:

d: distance (10,4),(-6,4)

d=√(x2-x1)^2+(y2-y1)^2

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3 years ago

(x+1)^1/2

Step2247 [10]

Answer:

Step-by-step explanation:

L.C.M. of 2 and 3=6

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8 0

3 years ago

I don't know how to find a different angle from this. PLEASE HELP FIND X!!!! THANKS!!!

timama [110]

The intersection of the two red rays forms a set of vertical angle pairs. In such a pair, angles opposite one another have the same measure, so the angle opposite the one labeled 93 degrees also has measure 93 degrees.

The red ray on the right together with the black ray pointing directly to the right form a pair of supplementary angles, whose measures add up to 180 degrees. This means the angle adjacent to the one labeled 128 degrees has measure 180 - 128 degrees.

In any triangle, the interior angles' measures add up to 180 degrees. So we have

? + 93 + (180 - 128) = 180

? + 93 - 128 = 0

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? = 35

8 0

3 years ago

Six hundred paving stones were examined for cracks, and 15 were found to be cracked. The same 600 stones were then examined for

9966 [12]

Answer: 0.01

Step-by-step explanation:

Let the events are :

C = paving stones found to be cracked.

D = paving stones found to be discolored.

Given : Total stones : T = 600 (i)

C = 15

D= 27

C'∩D'= 564 (ii)

Since C'∩D' = (C∪D)' = T- C∪D (iii)

From (i) , (ii)and (ii) , we have

564 = 600- C∪D

⇒ C∪D=600- 564= 36

Formula : C∩D= C+D- C∪D

Put values , we get

C∩D= 15+27-36=6

Now ,

$P(C\cap D)=\dfrac{C\cap D}{T}=\dfrac{6}{600}=0.01$

The probability that it is both cracked and distorted is 0.01.

4 0

3 years ago