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Lady_Fox [76]
1 year ago
15

Show that Sin30° / cos30° = tan30 °

Mathematics
1 answer:
sweet [91]1 year ago
4 0

Answer:

if you multiply both sides by cos 30

LHS = \frac{sin30}{cos30} x cos 30

       = sin 30

RHS = tan 30 x cos 30

       = \frac{sin30}{cos30} x cos 30

       = sin 30

       = LHS

Therefore, sin30° / cos30° = tan30 °

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Today is Mai's birthday. She is 9 years old. How old is Mai in months?
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Answer:

108 months old.

Step-by-step explanation:

Year = 12 months

9 Years = 9 x 12 months

9 years = 108 months.

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3 years ago
Cavin drank 3/4 of a liter of orange juice from a container, which was 3/8 of the orange juice that was originally in the contai
Y_Kistochka [10]

Answer:

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Step-by-step explanation:

Let

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we know that

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You take a 200 milligram dosage of aspirin. During each subsequent hour, the amount of medication in your bloodstream decreases
shepuryov [24]

Answer: The level of aspirin (mg) will be in your bloodstream in 4 hours = 35.70 mg.

Step-by-step explanation:

If the amount is decreasing by r%, then the final amount is given by :-

A=P(1-r)^t

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Given: P= 200 milligram, r= 35% = 0.35, t= 4 hours

The level of aspirin (mg) will be in your bloodstream in 4 hours = 200(1-0.35)^4

=200(0.65)^4\\\\=200\times 0.17850625\\\\=35.70125\approx35.70 \ mg

Hence, the level of aspirin (mg) will be in your bloodstream in 4 hours = 35.70 mg.

5 0
3 years ago
The product of 7 × b is less than 7 but greater than 0.
Alenkinab [10]

Answer:

b<1            b>0

Step-by-step explanation:

7b<7

b<1

7b>0

b>0

6 0
4 years ago
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