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jeyben [28]
3 years ago
11

Anyone know how to do trigonometry

Mathematics
1 answer:
Nata [24]3 years ago
8 0
<span>The side opposite the 30 degree angle is half of the hypotenuse.
a^2 + b^2 = c^2  =>

a^2 + (c/2)^2 = c^2
12^2 + c^2/4 = c^2
4*12^2 + c^2 - 4c^2 = 0 
576 -  3c^2 = 0 
- 3c^2 = - 576
c^2 = 192
c = 8√3

</span>
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8(7 + 23) = 8(7) + 8(?)
34kurt
Answer: 23

When using multiplication with brackets, you multiply the number by all the numbers within the bracket before adding them together.

Therefore when it is 8(7 + 23) it basically means: 8(7) + 8(23)
7 0
3 years ago
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john is a proud owner of a herd of cows 12 of them are brown and 32 are black what is the ratio of brown cows to the total numbe
Burka [1]

Answer:

12:44, or if simplified 3:11

Step-by-step explanation:

In mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3). Similarly, the ratio of lemons to oranges is 6∶8 (or 3∶4) and the ratio of oranges to the total amount of fruit is 8∶14 (or 4∶7).

6 0
3 years ago
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Can a math equation be like this:
ANTONII [103]

Answer:

  • Yes

Step-by-step explanation:

As per given information there are 18000 CCTV cameras in the area of 783.8 square kilometers

To find the average number of cameras you divide the number by the area.

The average number of CCTV cameras per square kilometer in NYC = 18000/783.8 = 22.9650421026 ≈ 23

It should be rounded up if taking approximate number

Yes you can have as many equal signs as you need and the approximately equal sign in the same equation.

8 0
3 years ago
Am i correct? What is the answer to the next one?
podryga [215]

Answer:

With base of 3: 3^{4}

With base of 9: 9^{2}

Step-by-step explanation:

Use 3 and 9 as the base of the power.

3^{4} =81\\9^{2} =81

8 0
3 years ago
13
tresset_1 [31]

Answer:

60 servings

Step-by-step explanation:

1/4 = 20% of a pound of blueberry

1 pound of blueberry = 100 ÷ 20% = 5 servings

12 pounds = 5 x 12 = 60 servings

8 0
3 years ago
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