14. The cost of 10 dozen of caps is Rs.800. How many caps can bebought for Rs.200.

Mathematics

1 answer:

kvasek [131]3 years ago

6 0

Answer:

123 456lcm divison method

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Suppose y varies directly with X, and Y =22 when x = 8 what is the value of y when x= 10

mars1129 [50]

27.5

22= K(8)

Divide 8 on both sides to get your K value

2.75 = K

Plug your K value into the other equation

Y= 2.75(10)

Solve to get Y

Y= 27.5 When the problem asks "vary directly", it is saying that you are multiplying your K value with your X value(K*X). If the problem is asks "vary indirectly", it is saying that you are dividing your K value by your X value (K/X)

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3 years ago

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Oksana_A [137]

Communitative property

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Which of the following is a polynomial?

Zina [86]

Answer:

A, B, C

Step-by-step explanation:

Assuming the choices are:

A. $(x-2)(x^{4}+3)$

B. $x^{2} -1$

C. A+ $x^{4} +16$

D. $\frac{1}{x} +2$

Put simply, a polynomial in this case will be a function that has at least one variable raised to a power greater than 1.

Choice A already has a variable raised to a power greater than 1 ( $x^{4}$ ), so no additional manipulation is needed.

Choice B also has a term that is already raised to a power greater than 1 ( $x^{2}$ ). It is the same for choice C ( $x^{4}$ ).

Choice D does not have an obvious variable raised to a power greater than 1. When the equation is manipulated it becomes $x^{-1} +2$ . Since -1 is less than 1, choice D is not a polynomial.