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Q. Multiplying Fractions Involving Negative Numbers?
Ans.
If you have only one negative sign, the result is still negative:
If you have more than one, just remember: two negatives make a positive.
What about 3 negative signs? Two of them make a positive, and the other one remains. So the answer is negative:
What about lots of negative signs? If there are an even number of them, they will all cancel out. If there are an odd number, one of them will be left over, so your answer will be negative.
The sum of -4 and a number is equal to -48. What is the number? Let x = the number. Because sum is a key word for addition, the equation is -4 + x = -48. Add 4 to both sides o
a) A husband and wife appear in an interview for two vacancies in the same post. The probability of husband's selection is 1/7 and that of wife's selection is 1/5. What is th
Q. How to Subtract fractions with different denominators? Ans. As with adding fractions, you can't subtract unless the denominators are the same. Here is an example: 9/
how can we plot y=2x-1
I need help fast with my calculus work
logical reasoning
Let R be the relation on S = {1, 2, 3, 4, 5} defined by R = {(1,3); (1, 1); (3, 1); (1, 2); (3, 3); (4, 4)}. (b) Write down the matrix of R. (c) Draw the digraph of R.
Q. What is a percentage? Ans. Percent means "per hundred", or "out of 100". A percentage can be written as a ratio, or fraction, where the denominator (bottom) is 100.
A partially loaded passenger car has a mass of 1600 kg. It has fully independent suspension in which each front spring has a stiffness of 19.0 kNm -1 and each rear spring has a s
subtract 20and 10,and then mutiply by 5
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