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Andrews [41]
3 years ago
12

What is the area of the rectangular prism?

Mathematics
1 answer:
posledela3 years ago
7 0

Answer:200 in^2


Step-by-step explanation:


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If 5% of an item is $0.50, what is the original price?
Blababa [14]

Answer:

$10

Step-by-step explanation:

0.05x=0.50

x=10

7 0
3 years ago
What is the value of 1 3/4 in decimal form
Luba_88 [7]
The answer would be, 1.75 because 3/4 of 1 is 75% pulse you spreading have a whole, so 1.75.
3 0
3 years ago
Read 2 more answers
Every orthogonal matrix is diagonalizable. O True O False
Simora [160]

Answer:

FALSE

Step-by-step explanation:

the correct answer is FALSE

A matrix is said to be orthogonal when it is  multiplied by its own transpose then the matrix comes out to be Identity.

                                      A^T.A = I

the basic condition for a matrix to be diagonalizable is that the matrix should be symmetric.

but an orthogonal matrix is not necessarily symmetric so, the statement is false.

5 0
3 years ago
Alexander Litvinenko was poisoned with 10 micrograms of the radioactive substance Polonium-210. Since radioactive decay follows
koban [17]

Answer:

The amount of Polonium-210 left in his body after 72 days is 6.937 μg.

Step-by-step explanation:

The decay rate of Polonium-210 is the following:

N(t) = N_{0}e^{-\lambda t}     (1)

Where:

N(t) is the quantity of Po-210 at time t =?

N₀ is the initial quantity of Po-210 = 10 μg

λ is the decay constant  

t is the time = 72 d  

The decay rate is 0.502%, hence the quantity that still remains in Alexander is 99.498%.    

First, we need to find the decay constant:

\lambda = \frac{ln(2)}{t_{1/2}}    (2)

Where t(1/2) is the half-life of Po-210 = 138.376 days

By entering equation (2) into (1) we have:

N(t) = N_{0}e^{-\frac{ln(2)}{t_{1/2}}*t}} = 10* \frac{99.498}{100}*e^{-\frac{ln(2)}{138.376}*72} = 6.937 \mu g    

Therefore, the amount of Polonium-210 left in his body after 72 days is 6.937 μg.  

I hope it helps you!  

8 0
3 years ago
Cuanto es la mitad de 2 mas 2
DanielleElmas [232]

Answer:

2+(2÷2)

2+1

3

La respuesta es 3 :)

8 0
3 years ago
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