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3 years ago

Express 5m2 in cm2 please answer fast!

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

6 0

Answer:

500000 cm2

Step-by-step explanation:

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mylen [45]

Answer:

I'm pretty sure you would just add and subtract as needed.

Step-by-step explanation:

Sorry if i'm wrong.

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2 years ago

GUYS... HELP ME WITH THIS... <br>

enot [183]

Answer:

x=3/2

Step-by-step explanation:

5 0

3 years ago

Element X decays radioactively with a half life of 15 minutes. If there are 960 grams of Element X, how long, to the nearest ten

labwork [276]

An equation is formed of two equal expressions. It will take for the radioactive element to decay from 960 grams to 295 grams in 25.54 minutes.

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The radioactive decay of an element is given by the formula,

$N = N_0 \cdot e^{-\lambda t}$

Given the half-life of the element is 15 minutes, therefore, we can write,

$\dfrac12 = e^{-\lambda\times 15}\\\\\ln (0.5) = -\lambda\times 15\\\\\lambda = 0.0462$

Now, the time it will take for 960 grams to decay to 295 grams is,

$295 = 960 \cdot e^{-0.0462 \times t}\\\\\ln (\dfrac{295}{960}) = -0.0462 \times t\\\\t = 25.54\rm\ minutes$

Hence, it will take for the radioactive element to decay from 960 grams to 295 grams in 25.54 minutes.

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8 0

2 years ago

Fiona recorded the number of miles she biked each day last week as shown below. 4, 7, 4, 10, 5 The mean is given by m = 6. Which

erastovalidia [21]

Answer:

s = [(4-6)^2 + (7-6)^2 + (4-6)^2 + (10-6)^2 + (5-6)^2] / 5

Step-by-step explanation:

Given the data:

Number of miles biked each day:

X = 4, 7, 4, 10, 5

The mean of data :

Mean(m) = (sum of X) / n

Where n is the number of observations or days

m = (4 + 7 + 4 + 10 +5) / 5

m = 30 / 5

m = 6

The variance of the data (s):

s = [Sum of (x - m)^2] / n

s = [(4-6)^2 + (7-6)^2 + (4-6)^2 + (10-6)^2 + (5-6)^2] / 5

Where s = variance, m = mean, x = data values

8 0

3 years ago

What is the definition of solution for math

givi [52]

A value we can put in place of a variable (such as x) that makes the equation true.

5 0

3 years ago