2 years ago

Which of these numbers equals 30.75 -3? A. -92.25 B. -10.25 C. 10.25 D. 92.25

Mathematics

2 answers:

sveta [45]2 years ago

6 0

It is A...............

Bess [88]2 years ago

5 0

A is the answer.......

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dedylja [7]

Answer:

V=2

Step-by-step explanation:

For the inverse variation equation p = StartFraction 8 Over V EndFraction, what is the value of V when p = 4?

P=8/V

Inverse variation is expressed as

y=k/x

Where,

k= constant.

From the question,

P=8/V

Where,

8=constant

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Make V the subject of the formula

pV=8

V=8/p

Substitute the value of p

V=8/4

V=2

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The terms in a geometric sequence are given by: A = ar^(n-1)
where A is the nth term in the sequence.
a = first term in the sequence (-2)
r = common ratio (-5)
n = number of the term (4)

A = (-2)(-5)^(4-1)
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A = (-2)(-125)
A = 250

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2 years ago

To make the same totem pole with wood that costs y dollars Ronald would have to spend a total of $35.19. Explain which property

nikitadnepr [17]

Answer:

Part 1) Subtraction Property of Equality

Part 2) This property can be used , because addition and subtraction have inverse relationships

Step-by-step explanation:

we know that

The<u><em> subtraction property of equality</em></u> tells us that if we subtract from one side of an equation, we also must subtract from the other side of the equation to keep the equation the same

we have

$10.50+y=35.19$

Solve for y

Applying Subtraction Property of Equality

subtract 10.50 both sides

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$y=\$24.69$

Remember that this property can be used , because addition and subtraction have inverse relationships.

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2 years ago

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The standard deviation is given by:
$\sqrt{npq} = \sqrt{100\times0.2\times(1-0.2)} =4$
The answers are: Mean = 20. Standard deviation = 4.

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Well im not to sure about yours but mine say the answer is A

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