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Stells [14]
3 years ago
14

Which relationship of angle a is correct? A. Cos(a) = 3/5 B. Cos(a) = 4/3 C. Sin(a) = 3/5 D. Sin(a) = 4/3

Mathematics
1 answer:
kotegsom [21]3 years ago
6 0
The correct answer is C.
Sin(a) = 3/5.

Use the law of similarity the big and small triangles, and then use the definition of sinus of the ankle.
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What is the best estimate of the measure of the angle shown?
KengaRu [80]
My answer would be 65° because none of the other choices make sense!

This angle is clearly under 90°, which eliminates the choices of 92° and 138°. This angle is also clearly bigger than 27°, which eliminates this choice too!

I really hope this helped, if there’s anything just let me know! ☻
8 0
3 years ago
Read 2 more answers
What is the value of y in the equation y = (-x) +2, when x = 32? O A. 2 OB. 4 O c. 8 O D. 10​
katen-ka-za [31]

Answer:

I think theres something wrong with the question but I got 30

Step-by-step explanation:

y= (-x) +2

when x =32

y= (-32)+2

y= -32+2

y=30

3 0
3 years ago
What is the volume of the smaller sphere please help​
Nata [24]

Answer:

32π is the volume of the larger sphere

Step-by-step explanation:

The volume of a sphere is V = 4/3πr³. The smaller sphere is  V = 4π. This means r³ divided by 3 was 1. So r³ = 3. For the larger sphere, substitute r = 2r into the volume formula.

V = 4/3πr³

V = 4/3π(2r)³

V = 4/3π8r³

We know from the previous problem that r³ = 3.

So the volume formula simplifies to V = 4π(8) = 32π

3 0
3 years ago
P = 1/3 plz help fast
leonid [27]

Answer:

1

Step-by-step explanation:

If p = 1/3, you would square it (which is 1/9) then multiply that by 9 :)

7 0
3 years ago
What is the probability that 4 randomly selected people all have different birthdays? Ignore leap years, and round your final an
Flauer [41]

Answer:

(D)0.9836

Step-by-step explanation:

There are 365 days in a year.

Since each person has a different birthday:

  • We can choose a birthday for the first person 365 out of 365 days.
  • We can choose a birthday for the second person 364 out of 365 days.
  • We can choose a birthday for the third person 363 out of 365 days.
  • We can choose a birthday for the fourth person 362 out of 365 days.

Therefore,

P(4 randomly selected people all have different birthdays)

=\dfrac{365}{365} \times \dfrac{364}{365} \times \dfrac{363}{365} \times \dfrac{362}{365}\\\\=0.9836

8 0
3 years ago
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