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ololo11 [35]
3 years ago
9

What is the relationship between sine and cosine of an complementary angel

Mathematics
1 answer:
faust18 [17]3 years ago
4 0
The sine of any acute angle is equal to the cosine of its complement. the cosine of any angle is equal to the sine of its complement also
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If the sin 30 degrees is 1/2 then the cos ____=____.
goldenfox [79]
  Try A) 60 degrees; 1/2. Your answer was incorrect because cos(60 degrees) is 1/2, cos(30 degrees) is square root 3 /2 not 1 or square root 2 /2
7 0
3 years ago
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What is 3/4 of 60 step step
dem82 [27]

Answer:

45

Step-by-step explanation:

3/4 of 60 would be:

= 3/4 * 60

= 3*60 / 4

= 180 / 4

= 45

Hope this help you :3

5 0
3 years ago
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maks197457 [2]
What you must do in this case is to find the roots of the polynomial.
 We have then:
 x ^ 2 + 20x + 100 = 36
 Rewriting:
 x ^ 2 + 20x + 64 = 0
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 x1 = -4
 x2 = -16
 Remember that the values of the roots are what make the polinome zero
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 x1 = -4
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3 0
3 years ago
A bucket contains one green block, one red block, and two yellow blocks. You choose one block from the bucket.
nalin [4]
A. 1/4; 2/4=1/2; 1/4
b. 1
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8 0
3 years ago
The figure is made up of hemisphere and a cylinder.
cluponka [151]

Answer:

Data: (Cylinder)

h (height) = 8 cm

r (radius) = 5 cm

Adopting:

V (volume) = ?

Solving:(Cylinder volume)

Note: Now, let's find the volume of a hemisphere.

Data: (hemisphere volume)

V (volume) = ?

r (radius) = 5 cm

Adopting:

If: We know that the volume of a sphere is , but we have a hemisphere, so the formula will be half the volume of the hemisphere

Formula: (Volume of the hemisphere)

Solving:

Now, to find the total volume of the figure, add the values: (cylinder volume + hemisphere volume)

Volume of the figure = cylinder volume + hemisphere volume

Volume of the figure = 628 cm³ + 261.6 cm³

Step-by-step explanation:

6 0
3 years ago
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