Answer:
x = - 1
Step-by-step explanation:
Length ( l ) = 2x + 8 cm
Width / Breadth ( b ) = 2 cm
Area ( rectangle ) = 12 cm
Formula : -
Area ( rectangle ) = lb
12 = ( 2x + 8 ) ( 2 )
Divide 2 on both sides,
12 / 2 = ( 2x + 8 ) ( 2 ) / 2
6 = 2x + 8
2x + 8 = 6
2x = 6 - 8
2x = - 2
x = - 2 / 2
x = - 1
Answer:
6 units
Step-by-step explanation:
distance between (-2,-2) and (4,-2)
distance formula,
√(x2-x1)²+(y2-y1)²
x2=4
x1=-2
y1=-2
y2=-2
putting the values,
√(4+2)²+(-2+2)²
√6²+0²
6 units
Answer:
1.180
2.50
3.56
Step-by-step explanation:
M<4,M<2 and M<5 have to add up to 180 as a result of being a parallel line.
Making m<2 50 since 46°+84=130, 180-130=50.
Since m<1 is 74 and knowing m<2 is 50 74+50=124 180-124=56 m<3=56
Therefore 1,2,3 =180°
Answer:
r=3
Step-by-step explanation:
- The equation of a circumference is
. - Then , in this case
, and then to know the value of r we just simply have to calculate the square root of 9, which is 3.
Kate: Please, for clarity, use " ^ " to denote exponentiation: 2x^2 + x − 4 = 0
And please include the instructions.
2x^2 + x − 4 = 0 can be re-written: 2(x^2 + (1/2)x - 2) = 0
Dividing both sides by 2 results in x^2 + (1/2)x - 2 = 0
Let's "complete the square:" x^2 + (1/2)x + (1/4)^2 - (1/4)^2 = 0
Then (x+(1/4))^2 = (1/4)^2
Taking the sqrt of both sides: x+1/4 = plus or minus 1/4
Solving for x: x = -1/4 plus or minus 1/4
Solving for x (continued): x = 0 and x = -1/2
