Difference of two squares will be
16y^2 -x^2 = (4y -x)(4y +x)
so the second choice
Answer:
perimeter = 67
Step-by-step explanation:
Answer:
1600 gallons of paint
Step-by-step explanation:
Answer:
D. 72 cm²
Step-by-step explanation:
The area of a square is given by ;
Area= l² where l = length
Given that the diagonal is 12 cm, let assume length of the square to be l
Apply the Pythagorean relationship where a=b=l
l² + l² = 12²
2 l² = 144
l²= 144/2
l²= 72
l =√72 =8.485 cm
⇒length of the square= l= 8.485 cm
⇒Area of the square= l² = 8.485² = 72 cm²
y = (1/2)x - 4
Step-by-step explanation:
The equation of the given line is
y = -2x + 13
The equation of the perpendicular line that we need must have a slope of 1/2 and passes through (2, -3) so the form should be
y = (1/2)x + b
To solve for b, use the point (2, -3)
-3 = (1/2)(2) + b ---> b = -4
Therefore, the equation that we need has the form
y = (1/2)x - 4
