<em>Answer:</em>
a = 7 & a = −7
<em>Explanation:</em>
Rewrite the equation as
(x+a)(x−a)=x^2−49
Simplify (x+a)(x−a)
x^2−a^2=x^2−49
Move all terms not containing a to the right side of the equation.
−a^2=−49
Multiply each term in −a^2=−49 by −1
a^2=49
Take the square root of both sides of the equation to eliminate the exponent on the left side.
a=±√49
The complete solution is the result of both the positive and negative portions of the solution.
a=7,−7
2y = x-6, x=9
2y = 9-6; plug 9 in for x
2y = 3; evaluate 9-6
y = 3/2; divide each side by 2
x = 9
y = 3/2
Hope this helps!
3x27=81 so 81 is a multiple of 3
there is no integer x for which 4x=46 so 46 is not a multiple of 4
there is no integer x for which 7x=55 so 55 is not a multiple of 7
72 = 8*9 so 72 is a multiple of 9
there is no integer x for which 6x=45 hence 45 is not a multiple of 6
Answer:
65
Step-by-step explanation:
so first you want to find out how fast Henry can solve the problems
26 problems in 2 minutes
that means 13 problems per minute
then 13*5=65
Answer:
Step-by-step explanation:
Given:
Length (l) = 12 cm
Width (w) = 4 cm
Perimeter of the rectangle = 2(l + w) units
<em>P</em> = 2(12 + 4)
<em>P</em> = 2 (16)
<em>P</em> = 32
<h2><u><em>32 cm</em></u></h2>
