Type the correct answer in each box. use numerals instead of words. consider this quadratic equation. x2 + 2x + 7 = 21 the number of positive solutions to this equation is . the approximate value of the greatest solution to the equation, rounded to the nearest hundredth, is .

Step-by-step explanation:

The given expression is

x^{2}+2x+7=21

To solve this expression, we need to pass all terms to the left side

Now, we solve the equation using the quadratic formula

Where

Replacing these values, we have

Therefore, this quadratic equation has only 1 positive solution, and the greatest solution is 2.87, rounded to the nearest hundredth.

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: