-2(7 – y) +4= -4 How do you solve this
2 answers:
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The above is a simple math problem and the answer to x which is the unknown is -6.5 approximately.
<h3>What is the calculation for the above answer?</h3>First, lets rewrite the word problem:
-1.96321 and - √(x) = 5
Note that "and" is also multiplication in math.
Hence,
-1.96321 * - √(x) = 5
- √(x) = 5/-1.96321
-x = (5/-1.96321)²
- x = 6.48644131993
x = - 6.48644131993
x -6.5
Learn more about simple math problems:
Answer:
Approximately 201 squared inches.
Step-by-step explanation:
So, the composite figure is made up of a square and a semi-circle. The square has side lengths of 12 and the semi-circle has a radius of 6.
The total area of the figure would be the area of the square plus the area of the semi-circle. Thus, find the area of each individual figure.
Square:
The area of a square is given by:
Where l is the side length.
Substitute 12 for l:
So the square is 144 square inches.
Semi-circle:
The area of a semi-circle is given by:
Substitute 6 for r and 3.14 for π:
Therefore, the total area is:
Answer:
λN N(0) = 6
N(t) = N₀e^(λt)
Applying the inital value condition
N(t) = 6e^(λt)
Step-by-step explanation:
Summarizing the information briefly and stating the variables in the problem.
t = time elapsed during the decay
N(t) = the amount of the radioactive substance remaining after time t
λ= The constant of proportionality is called the decay constant or decay rate
Given the initial conditions
N(0) = N₀ = 6
The rate at which a quantity of a radioactive substance decays () is proportional to the quantity of the substance (N) and λ is the constant of proportionality is called the decay constant or decay rate :
λN
N(t) = N₀e^(λt) ......equ 1
substituting the value of N₀ = 6 into equation 1
N(t) = 6e^(λt)