D hope that helped a little
Using proportions, considering the total number of students, it is found that 216 boys to linking their school lunch.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, 400 - 152 = 248 boys were surveyed. 32 said they liked the school lunch and 248 - 32 = 216 said no liking their school lunch.
More can be learned about proportions at brainly.com/question/14398287
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The answer is 5 to this expression
Answer:
x^2+14x+49
Step-by-step explanation:
use FOIL to find the answer. you multiply the firsts in each parenthesis, the outside, the insides, and last
Answer:
The solutions are ![x=-4(+/-)\sqrt{13}](https://tex.z-dn.net/?f=x%3D-4%28%2B%2F-%29%5Csqrt%7B13%7D)
Step-by-step explanation:
we have
![x^{2} +8x=-3](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B8x%3D-3)
Complete the square. Remember to balance the equation by adding the same constants to each side
![x^{2} +8x+16=-3+16](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B8x%2B16%3D-3%2B16)
![x^{2} +8x+16=13](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B8x%2B16%3D13)
Rewrite as perfect squares
![(x+4)^{2}=13](https://tex.z-dn.net/?f=%28x%2B4%29%5E%7B2%7D%3D13)
square root both sides
![x+4=(+/-)\sqrt{13}](https://tex.z-dn.net/?f=x%2B4%3D%28%2B%2F-%29%5Csqrt%7B13%7D)
![x=-4(+/-)\sqrt{13}](https://tex.z-dn.net/?f=x%3D-4%28%2B%2F-%29%5Csqrt%7B13%7D)