Answer:
The question says area of a square = 9 cm squared.
And they said if the sides are doubled in length what is the new length
so new length = 9 cm^2 × 9 cm^2
which should give you 81cm^2
therefore your answer should be = C
Answer:
c=1
Step-by-step explanation:
subtract 1 with 10, outcome is 1. subtract both sides by 9 to deduct the 9. and you get 1
Answer:
The roots are


Step-by-step explanation:
we have

so
Group terms that contain the same variable, and move the constant to the opposite side of the equation


Factor the leading coefficient

Complete the square. Remember to balance the equation by adding the same constants to each side



Rewrite as perfect squares

square root both sides



Her overall budget would be $5000, If you are using a calculator, enter 800×100÷16, which will give you the answer
Answer:
![(-\infty,-4]](https://tex.z-dn.net/?f=%28-%5Cinfty%2C-4%5D)
Step-by-step explanation:
So we have the inequality:

This means that our solution is all numbers <em>less than or equal to </em>-4. Therefore, in interval notation, this is:
![(-\infty,-4]](https://tex.z-dn.net/?f=%28-%5Cinfty%2C-4%5D)
This represents all the numbers from negative infinity up until -4. This is equivalent to the inequality.