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Verizon [17]
3 years ago
14

What value added to x^2+2x would complete the square?

Mathematics
1 answer:
svetlana [45]3 years ago
7 0
D is the only one which would make sense :)
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What is 7/8 plus 4/6 equal
Alekssandra [29.7K]
First, find a common denominator (preferably the LCD): 8 and 6 both factors of 24, which is also the LCM, so we'll use that.

Second, manipulate the numerators so that the fractions are equivalent to the ones you started-out with: In order to make 7/8 equal to a fraction that has a denominator of 24, we have to multiply the numerator by 3, since we multiplied the denominator by 3 to make it 24. We will do the same process for the fraction 4/6.

Thus far, we should have 21/24 plus 16/24.

Next, all we have to do is add the numerators together, and keep the denominator. You should end-up with 37/24. If your teacher doesn't want an improper fraction, we can simplify this by dividing 37 by 24, which gives us 1, and then subtracting 24 from 37 in order to find-out how many twenty-fourths we have left over. Since this is equal to 13, the mixed-number form of the answer would be 1 13/24 ("one and thirteen twenty-fourths").
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Question number seven answer
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The answer for the question is A, %10 of 80 is 8, the remaining 2 pounds can be %2.5, %10+2.5=12.5
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Give an example of a decimal that is between 1.6 and 1.61.
natima [27]
The best answer is
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What is 9,031 divided by 71
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What number must you add to complete the square? x^2+10x=15
weqwewe [10]

Answer:

(x+5)^2=40

Step-by-step explanation:

The number to be added is the square of half of the linear term coefficient. Such coefficient in our case is "10" (the number accompanying the variable x). Then, half of it is 10/2 = 5, and that number squared gives 25.

Therefore, the number to add on bothsides of the equality is 25, which leads to the following:

x^2+10x+25=15+25\\x^2+10x+25=40\\x^2+5x+5x+25=40\\x(x+5)+5(x+5)=40\\\\(x+5)^2=40

This matches answer B) of your choices.

6 0
3 years ago
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