Answer:
Step-by-step explanation:
<u>Quadratic Formula</u>
Given the second-degree equation:
The solutions of the equation can be obtained by applying the formula:
The equation to solve is:
Which means the values of the coefficients are: a=3, b=-7, c=-3. Substituting the values in the formula:
There are two real solutions for this equation:
The approximate values of both roots are:
Answer:
D is the answer... But I am not 100% sure though sorry.
Step-by-step explanation:
Using proportions, it is found that Yes, there could be 5 kids, with 3 boys and 2 girls.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount.
In this problem, supposing a total of 5 kids:
- More than 1/2 = 50% are boys, hence there are more than 2.5 boys, as 0.5 x 5 = 2.5.
- Less than 2/3 = 66.67% are boys, hence there are less than 3.33 boys, as 0.6667 x 5 = 3.33.
Hence, Yes, there could be 5 kids, with 3 boys and 2 girls.
More can be learned about proportions at brainly.com/question/24372153
Answer:
x < -7
Step-by-step explanation:
The diagonals would be perpendicular (intersect at a 90* angle)