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KIM [24]
4 years ago
11

Can it figure how to do this cosine out

Mathematics
1 answer:
Gnesinka [82]4 years ago
3 0

Answer:

  BC= 14.6

Step-by-step explanation:

The law of cosines tells you ...

  BC² = AB² +AC² -2·AB·AC·cos(A)

  BC² = 9² +12² -2·9·12·cos(87°) ≈ 213.695

  BC ≈√213.695 ≈ 14.6

The length of BC is about 14.6 units.

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the mass of a certain grain of rice is about 3 x 10^-2 grams. The mass of a certain grain of salt is about 6 x 10^-5 grams.
lina2011 [118]

Answer:

Step-by-step explanation:

Rice: 3 x 10^-2 = 0.03 grams

Salt: 6 x 10^-5 = 6e-5 grams

4 0
3 years ago
Angelo's mother put $50 on his lunch card. He spends the same amount
amid [387]

Answer:

Given that Angelo spends the same amount every day from the amount in

the lunch card, the function of the amount remaining is a linear function.

The constant rate of change of the function is; -5.25

The two ordered pairs used to find the constant rate of change are; (1, 44.75) and (2, 39.5)

Reasons:

The amount Angelo's mother put on the lunch card = $50

A possible table of values to the question is presented as follows;

Required:

The constant rate of the function that gives the amount remaining from the

amount Angelo's mother put on his lunch card.

Solution:

The two ordered pairs that can be used to find the slope or constant rate of change are;

(x₁, y₁) = (1, 44.75), and (x₂, y₂) = (2, 39.5)

With the above two ordered pairs, we have the constant rate of change of the function given as follows;

The constant rate of change for the function that gives the amount remaining in the lunch card is; -5.25

3 0
3 years ago
In two or more complete sentences, identify the parent function, and describe the transformations that were applied to obtain th
vladimir2022 [97]

Answer

Y 4, 5.41, 6

_________

X 0, 1, 2

Step-by-step explanation:

math

5 0
4 years ago
juan has 48 stamps and 36 stickers. he wants to glue the same number of stamps and the same number of stickers onto 6 pages in h
Alex17521 [72]
14 is the answer, here's how: do 48+36 and get 84 and divide that by 6 and get 14.
3 0
4 years ago
How many liters of water would it take to fill a swimming pool that is 3 m wide by 6 m long and 2 m deep?
enyata [817]
<span>It would take 36000 liters of water to fill a swimming pool that is 3m wide by 6m long,and 2 m deep.</span>
6 0
3 years ago
Read 2 more answers
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