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Zielflug [23.3K]

3 years ago

11

What is the mathematical definition of the Subtraction Property of Equality?

2 answers:

emmasim [6.3K]3 years ago

6 0

I just learned this today.

In my case, You can add or subtract the same quantity from both sides and retain the equality.

For example: If $a=b$ , then $a-c=b-c$

Additive and Subtractive Property of Equality are the Same Thing

Credit to my math Teacher for this

Vinvika [58]3 years ago

4 0

When both sides of an equation have the same number subtracted from each of them, so the remaining part of the equation is still equal

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A cylinder has a volume of 360 in^3. If the height and radius are multiplied by 2.5, what will the resulting volume be?

4vir4ik [10]

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=2.5r\\
h=2.5h
\end{cases}\implies V=\pi (2.5r)^2(2.5h)
\\\\\\
V=\pi \cdot 2.5^2\cdot r^2\cdot 2.5h\implies V=(2.5^2\cdot 2.5)\pi r^2 h
\\\\\\
V=15.625\pi r^2h\impliedby \textit{15.625 of the original}
\\\\\\
\textit{if the original was 360}\qquad 15.265\cdot 360$

5 0

3 years ago

(5x + 2)<br> 72°<br> I need help pls fast asap

Misha Larkins [42]

69818247034ue8e83884647

8 0

2 years ago

Read 2 more answers

A batch of 580 containers for frozen orange juice contains 8 that are defective. Two are selected, at random, without replacemen

serious [3.7K]

Answer:

a. 0.12109

b. 0.0001668

c .0.9726

d. 0.01038

e. 0.01211

f. 0.000001731

Step-by-step explanation:

Sample size = 580

Defective units = 8

Number of picks = 2

a) If the first container is defective, there 7 defective containers left in a population of 579. The probability of selecting a defective one is:

$P=\frac{7}{579}=0.121$

b) The probability that both are defective is given by:

$P=\frac{8}{580}*\frac{7}{579}= 0.000167$

c) The probability that both are acceptable is given by:

$P=\frac{580-8}{580}*\frac{579-8}{579}= 0.9726$

d) In this case, two defective units were removed from the batch, the probability that the third is also defective is:

$P=\frac{6}{578}}= 0.0104$

e) In this case, one acceptable and one defective unit were removed from the batch, the probability that the third is also defective is:

$P=\frac{7}{578}= 0.01211$

f) The probability that all three are defective is given by:

$P=\frac{8}{580}*\frac{7}{579}*\frac{6}{578} = 0.000001731$

7 0

3 years ago

suppose that in 2008, 797,100 citizens died of a certain diseade. Assuming the population of hte country is 353 million, what wa

taurus [48]

797,100 deaths x

---------------------------------- = -------------------------

350,000,000 people 100,000 people

or:

797,100 deaths x

--------------------------- = -----------------

3500 people 1 people

Result: 228 deaths per 100,000 people

4 0

3 years ago

Algebraic expression: t divided by 3-6=14

Lisa [10]

T=7 I think that is the correct awnser

6 0

3 years ago