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Nady [450]
3 years ago
8

Whats 0.68% of 425show your work

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Find 0.68% as a fraction:

\frac{0.68}{100}=\frac{68}{10000}=\frac{17}{2500}

So you multiply that by 425 to get your value:

\frac{17}{2500}*\frac{425}{1}=\frac{17}{100}*\frac{17}{1}=\frac{17*17}{100}=\frac{289}{100}

Your answer is \frac{289}{100} or, in decimal format, 2.89.

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Which expression is equivalent to (8^2)-4 ??
Tamiku [17]

Answer:

Option C \frac{1}{8*8*8*8*8*8*8*8}

Step-by-step explanation:

we have

(8^{2})^{-4}

Remember that

(a)^{-b} = \frac{1}{a^{b}}

(a^{b})^{c}=(a)^{b*c}

therefore

(8^{2})^{-4}=(8)^{-4*2}=(8)^{-8}

(8)^{-8} = \frac{1}{8^{8}}

\frac{1}{8^{8}}=\frac{1}{8*8*8*8*8*8*8*8}

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3 years ago
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BigorU [14]

Answer:

A

Step-by-step explanation:

5,12,13 is a right triangle

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2 years ago
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Find a second-degree polynomial (that is, an equation of the form y =a + bx + cx2 d that goes through the three points (0, 1), (
Lostsunrise [7]

Answer:

y = 1 - x^2

Step-by-step explanation:

we're given three points (0,1),(1,0) and (-1,0). and and equation of a parabola

y = a + bx + cx^2

we can plug in each of the coordinates, and 3 equations

(x,y) = (0,1)

1 = a + b(0) + c(0)^2

a=1\quad\quad\Rightarrow A

(x,y) = (1,0)

0 = a + b(1) + c(1)^2

a + b + c=0\quad\quad\Rightarrow B

(x,y) = (-1,0)

0 = a + b(-1) + c(-1)^2

a - b + c=0\quad\quad\Rightarrow C

These are are three equations, well we can simultaneously solve them to find the values of a, b and c.

we already found that, a = 1. so we plug this value in the rest of the equations. we'll use equation B.

a + b + c=0

1 + b + c=0

b=-1-c

we can substitute this value of b and a = 1, equation C

a - b + c=0

1 -(-1-c) + c=0

1 +1+c + c=0

2+2c=0

c=-1

we can use this value of c back in b

b=-1-(-1)

b=0

hence our equation of the 2-degree polynomial will be:

y = a + bx + cx^2

y = 1 + (0)x + (-1)x^2

y = 1 - x^2

and this polynomial indeed passes through all the points (0, 1), (1, 0), and (-1, 0).

And since these are the only solutions to the simultaneous equation we solved (i.e. we have single values of a,b and c). there's no other possibility.

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I need an answer quick I'll give you a crown if can.
taurus [48]

√-16

Step-by-step explanation:

C. 4i

I hope it will be help you...

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245,600,000,000 in scientific notation
vekshin1

Answer:

2.456  x 10^11

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

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