Answer:
-7 and -4
Step-by-step explanation:
28= -7*-4
-11= -7+-4
Answer:
x^2 + 7x - 3 = 0
Step-by-step explanation:
I think you meant "width of the frame" from outside of frame to outside of mirror.
Let x represent the width of the frame.
Area of mirror is (3 ft)(4 ft) = 12 ft^2. Total area of mirror and frame is 15 ft^2. The 3 ft^2 difference is the area of the frame.
But you were asked to find a quadratic equation that would give you the "width" of the frame.
The "new" width would be 3 + x and the "new" height would be 4 + x.
Then the area of the mirror and frame together would be
A = (3 + x)(4 + x) = 15 ft^2, or
12 + 7x + x^2 = 15 ft^2, or
x^2 + 7x - 3 = 0. This is the desired quadratic equation.
When answer choices are given, please share them when you post a question. Thank you.
Answer: The answer is A and C.
Step-by-step explanation:
I got it right on Khan. :)
Answer: First term = 11r and second term= 7s
The coefficient in first term = 11
The coefficient in second term =7
Step-by-step explanation:
The given expression 11r + 7s is with two terms i.e. a binomial expression with variables r and s
Here the first term = 11r
And the coefficient of r in term =11
The second term= 7s
The coefficient of s in second term=7
The coefficients are the numbers that multiply the variables .
Can you say what is the line between the 14 and 8
