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jeyben [28]
3 years ago
10

Which one of these is the identity for addition? (A) -1 (B) 0 (C) 1

Mathematics
1 answer:
Blababa [14]3 years ago
3 0

Answer:

c

Step-by-step explanation:

because 1 is also know as +1

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The amount of carbon-14 in an object is given by y = ae– 0.00012t where a is the initial amount of carbon and t is the age in ye
Reptile [31]

Answer:

The approximate age of the bone is approximately 11552 years.

Step-by-step explanation:

The current proportion of carbon-14 with respect to its original amount is defined by following formula:

\frac{y}{a} = e^{-0.00012\cdot t} (1)

Where:

y - Current amount of carbon-14, no unit.

a - Initial amount of carbon-14, no unit.

t - Time, in years.

If we know that \frac{y}{a} = 0.25, then the approximate age of the bone is:

t = -8333.333\cdot \ln \frac{y}{a}

t\approx 11552.453\,yr

The approximate age of the bone is approximately 11552 years.

4 0
3 years ago
How can I find the surface area of a right cone with a radius of 6 and slant height of 16
VMariaS [17]
First, you have to calculate the height.
Pythagorean Theorem:
a^2+b^2=c^2
Slant height=c^2
Radius=b^2
So, a^2+6^2=16^2
       a^2+36=256
       a^2=220
       a=14.832397
Surface Area = πr(r+ square root of h^2+r^2)

Surface Area is approximately 414.69
3 0
4 years ago
A scale drawing for a backyard is shown below.
scZoUnD [109]

The area of real patio is 50m².

Step-by-step explanation:

Given,

Length of patio = 3 cm

Width of patio = 6 cm

According to scale =

3 cm = 5m

1 cm = \frac{5}{3}\ m

6 cm = \frac{5}{3}*6 = 10\ m

Real length of patio = 5 m

Real width of patio = 10 m

Area = Length*width

Area=5*10\\Area=50\ m^2

The area of real patio is 50m².

Keywords: area, multiplication

Learn more about areas at:

  • brainly.com/question/13086598
  • brainly.com/question/13087541

#LearnwithBrainly

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3 years ago
ASAP JUST WORK NO ANSWER
Romashka-Z-Leto [24]
This is not a function but the domain is x and the range is going to y so the first is the domain and the second box it the range
6 0
3 years ago
45% of 120 is what answer please
marishachu [46]

Answer:

54

Step-by-step explanation:

5 0
3 years ago
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