Answer:
Step-by-step explanation:
This is a quadratic expression. Use the quadratic formula to find the roots, and then once you have the roots, write the corresponding factors.
The coefficients of this quadratic expression are a = 7, b = 5 and c = -3
The discriminant is b^2 - 4ac, or 5^ - 4(7)(-3), or 25 + 84 = 109. Because this is positive, we know that the expression has two unequal, real roots.
Using the quadratic formula, we now find these roots:
-b ± √(discriminant)
x = -------------------------------- which here is:
2a
-5 ± √109
x = -----------------
14
The factors can be found from these two roots. The first one is
-5 - √109 5 + √109
(x - ---------------- ) = (x + ---------------- )
14 14
and the second is
5 - √109
(x + ---------------- )
14
The answer is C hope this helped:)
Answer:
20
Step-by-step explanation:
The real answer is 20.428, so rounded it's 20
Answer:
The answer is $240
If you do one box which has 6 tiles you can get that one box has enough for 120 by 120. if you do another box you get 240 by 240 and add one more box to get 360 by 360. Unless you need to calculate for the ones she only needs and not in the box then the answer should be $240
Step-by-step explanation:
Hope this helped
A brainliest is always appreciated.
We need the 3 triangles “given” in order to answer the problem
