Answer:
(x-7)(x+7)
Step-by-step explanation:
x^2 -49
This is the difference of squares
x^2 -7^2
We know that a^2 -b^2 = (a-b)(a+b)
(x-7)(x+7)
Answer:
The answer is 350 grams of sugar
Step-by-step explanation:
You use a ratio
= 
Compare the numerators. Since
6
⋅
35
=210 , multiply the denominator 10 by 35 to get 350
.
Answer: 13.6% needed more time but then said no. 25.6% were contacted but said no.
To do this problem, you have to create a tree diagram with all of the possibilities.
The first branch separates with 20% not being contacted and 80% being contacted.
Then, the 80% branch can be broken into 12% saying no and 68% needing more time (multiply by 15% and 85%).
Then, the 68% branch can be broken into 54.4% going and 13.6 not going (multiply by 80% and 20%).
With the tree diagram, just pick the percents that you need.
Answer:
IS it asking for ehich one?
Step-by-step explanation:
The equation of a
circle is:
(x - h)² + (y - k)² = r²
The equation of a
parabola is:
(x - h)² = 4p(y - k)
The equation of an
ellipse is:

where variables a and b and the two different measurements of the vertices
The equation of a
hyperbola is:

if it is with a horizontal transverse axis

if it is with a vertical transverse axis
Notice these have a subtraction operation, the exact opposite ellipse.