If you can expplain

Mathematics

2 answers:

harkovskaia [24]3 years ago

7 0

Answer:

2.25

Step-by-step explanation:

2 2/8

We’re willing to find out which of these is equivalent to 2 2/8

2 ways to write 2 2/8

1. Decimal form

2. Improper fraction
•••••••••••••••••••••••••••••••
1. Convert 2 2/8 into a
decimal (by keeping the
whole number the same
and dividing 2/8)

2 2/8 = 2.25

2. Convert 2 2/8 into a
improper fraction (by
multiplying the
denominator by the
whole number and then
adding it to the numerator)

2 2/8 = 8 • 2 + 2

2 2/8 = 18

Finally add the denominator back

8 = denominator

18/8

So the two ways to write 2 2/8
are: 2.25 and 18/8

lana [24]3 years ago

6 0

Answer:

I can explain. The answer is A

Step-by-step explanation:

Think of it this way: when you write a mixed number, the fraction is out of 100. If the denominator is 8, find 1/8 of 100 by doing 100 divided by 1/8. This gives you 12.5. The entire fraction is 2/8, so we need to multiply 12.5 by 2, since it's only 1/8. 12.5 x 2 gives us 25. In the decimal, this would be equal to .25. A is the only answer that represents the mixed number as a decimal correctly.

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Calculate the area of the circular field if its radius is 110m and express this area in hectares?

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3 years ago

If f(x) = 5x - 12, what is f2)? O A. -22 O B. 10 O C. -2 D. 2

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Answer:

C , -2

Step-by-step explanation:

Replace X in the equation with 2

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4 years ago

Read 2 more answers

Hi, the answer is K but can anyone show why

dlinn [17]

Let's do 51 and 52.

51. The contrapositive has the same truth value as the original statement. That's opposed to the converse, which may or may not be true independent of the original statement.

The contrapositive of IF P THEN Q is IF not Q THEN not P. They're equivalent. Here that's If the cat is not female then it is not tricolor.

Answer: C

52.

$(x^3)^{(4-b^2)}=1$

$x^{3(4-b^2)} = 1$

For the statement to be true, the exponent must be zero:

$3(4-b^2) = 0$

$b^2 = 4$

$b = \pm 2$

Both positive 2 and negative 2 have a square of 4.

Answer: K

By the way, usually we assume $0^0=1$ so the restriction that $x \ne 0$ isn't really necessary. Think of the definition of a polynomial or the binomial expansion: