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4 years ago

X + 5 = 8 Justify each step. Check the solution.

Mathematics

1 answer:

Sloan [31]4 years ago

6 0

X+5−5=8−5 subtract -5 on each side

x=3

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What is 1.16 as afraction

saul85 [17]

Answer:

23.2/20

Step-by-step explanation:

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3 years ago

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Simplify the expression -8-4(-9-8v+3v)

Elanso [62]

Your answer is 108+60v.

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3 years ago

Recall that m(t) = (1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500g sample of phosphorus-32 decays

katrin2010 [14]

The question is incomplete, here is the complete question:

Recall that m(t) = m.(1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500 g sample of phosphorus-32 decays to 356 g over 7 days. Calculate the half life of the sample.

<u>Answer:</u> The half life of the sample of phosphorus-32 is $14.28days^{-1}$

<u>Step-by-step explanation:</u>

The equation used to calculate the half life of the sample is given as:

$m(t)=m_o(1/2)^{t/h}$

where,

m(t) = amount of sample after time 't' = 356 g

$m_o$ = initial amount of the sample = 500 g

t = time period = 7 days

h = half life of the sample = ?

Putting values in above equation, we get:

$356=500\times (\frac{1}{2})^{7/h}\\\\h=14.28days^{-1}$

Hence, the half life of the sample of phosphorus-32 is $14.28days^{-1}$

7 0

4 years ago

Identify the rule for each pattern.

Angelina_Jolie [31]

Answer:

ar some point pattern A will have the same numbers as pattern B as it moves along like if you add 3 for 2 more times in pattern A it will have 24 and so on..

3 0

3 years ago

To use Long Division of Polynomials to verify that x = a/b is a zero on a polynomial function P(x), the divisor would be

Strike441 [17]

Answer:

D) bx - a

Step-by-step explanation:

If a/b is a zero, then (x -a/b) is a factor of the polynomial. That is, the value x=a/b will make a factor of the polynomial be zero.

The above factor can be written without fractions by multiplying it by b:

(bx -a) . . . . matches choice D

You can also choose the answer on the basis of which expression becomes zero when x=a/b.

4 0

3 years ago