4 years ago

Additive inverse of 1 1/4.

Mathematics

1 answer:

vampirchik [111]4 years ago

3 0

Answer:

Step-by-step explanation:

4/11

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30 points<br><br> What is the opposite of cosine called and what is its triangle ratio

Liula [17]

Answer: Answer is below

Step-by-step explanation: The answer is that the opposite of a cosine is called a hypotenuse. The ratio of the triangle is called a tangent.

I hope this info helps! :V

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3 years ago

Dubnium-262 has a half-life of 34 s. How long will it take for 500.0 grams to

dmitriy555 [2]

Answer:

the time taken for the radioactive element to decay to 1 g is 304.8 s.

Step-by-step explanation:

Given;

half-life of the given Dubnium = 34 s

initial mass of the given Dubnium, m₀ = 500 grams

final mass of the element, mf = 1 g

The time taken for the radioactive element to decay to its final mass is calculated as follows;

$1 = 500 (0.5)^{\frac{t}{34}} \\\\\frac{1}{500} = (0.5)^{\frac{t}{34}}\\\\log(\frac{1}{500}) = log [(0.5)^{\frac{t}{34}}]\\\\log(\frac{1}{500}) = \frac{t}{34} log(0.5)\\\\-2.699 = \frac{t}{34} (-0.301)\\\\t = \frac{2.699 \times 34}{0.301} \\\\t = 304.8 \ s$

Therefore, the time taken for the radioactive element to decay to 1 g is 304.8 s.

4 0

3 years ago

Ramona works in a clothing store where she earns a base salary of $140 per day plus 14% of her daily sales. She sold $600 in clo

AlladinOne [14]

140*2 + 0.14(600+1200) = 280 + 252 = 532
Hope it’s help you

3 0

3 years ago

Which expressions are equivalent to -2(5x-3/4)

user100 [1]

Answer:

1, 4

Step-by-step explanation:

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3 years ago

The scale of a map is 2 cm:15 kom. Find the actual distance for each map distance.

pashok25 [27]

Answer: 6 cm is 45 km

5 cm is 7.5 km

Step-by-step explanation:

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4 years ago