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boyakko [2]
3 years ago
13

Find the discriminant and the number of real roots for this equation.

Mathematics
1 answer:
Iteru [2.4K]3 years ago
3 0

Answer:

C. -24 no real roots

Step-by-step explanation

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The left and right page numbers of an open book are two consecutive integers whose sum is 385. Find these page numbers.
Alona [7]
Consecutive integers are integers that follow one another. For example, 2,3,4,5,etc.... are consecutive integers

So algebraically, consecutive integers follow the form x, x+1, x+2, etc...

Since the sum of two consecutive integers is 239, this means:

x%2Bx%2B1=239

2x%2B1=239 Combine like terms on the left side

2x=239-1Subtract 1 from both sides

2x=238 Combine like terms on the right side

x=%28238%29%2F%282%29 Divide both sides by 2 to isolate x

x=119 Divide

So our first number is x=119

So to find the next number, simply add 1 to it to get 119%2B1=120

Answer: So our two page numbers are 119 and 120
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3 years ago
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4 years ago
In a classroom 12 students are wearing glasses, while 6 are not. What percent of the students are wearing glasses? Explainnn
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Answer:

66,666666666666666666666666666666666667% :))

Step-by-step explanation:

total number of students in 1 class: 12 + 6 = 18 students

percentage of student wearing glasses are:

\frac{12}{18}  \times 100 = 66.666666667\%

Done :))

4 0
3 years ago
Slove the absolute value equation I3xI=18
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X=6,-6

3x= 18
X=18/3
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Lines need to be painted on the field at a football stadium. The painter estimated that one can of paint would last 11 yards. Ho
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Answer:  

area = pi*24^2/4 = 452 yd^2

so that means you will need 452/59 = 7.6 (or 8) gallons

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