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3 years ago

102° find the value of x and x

Mathematics

1 answer:

Whitepunk [10]3 years ago

5 0

Answer:

17 3.14

/30

Step-by-step explanation:

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Answer the question pictured here.

marusya05 [52]

Answer:

its a 3.5

Step-by-step explanation:

8 0

3 years ago

Fourteen more than a number is eighteen.

AVprozaik [17]

Answer: 4

Step-by-step explanation:

18-14=4

3 0

3 years ago

One triangle on a graph has a vertical side of 7 and a horizontal side of 12.

Alisiya [41]

If you are working out the diagonal line you need to use Pythagoras Theroum: c² = a²+b²

c² = 7²+12² = 193
√c² = c = √193 = 13.89

The length of the diagonal side is 13.89,
Hope this helps! :)

4 0

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

2 years ago

54 divided by 7 simplified

Colt1911 [192]

Answer:

7.7142

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers