Answer:
a 2 cm and 6 cm
Step-by-step explanation:
The product of the dimensions must be 12 cm². (All answer choices meet that requirement.)
Opposite sides of a rectangle are the same length, so the sum of the two dimensions must be half the perimeter, 8 cm. The sums of the answer choices are ...
8 cm
7 cm
9.5 cm
13 cm
Only the first answer choice meets the requirement for a perimeter of 16 cm. The dimensions could be 2 cm and 6 cm.
Answer:C
Step-by-step explanation:
5= 2/5a
Multiply by 5/2 on each side
5/2 x5=2/5ax5/2
25/2=10/10a
25 divided by 2 is 12 1/2
Answer:
3
Step-by-step explanation:
Step 1:
- 5x + 2 = - 13 Equation
Step 2:
- 5x = - 15 Subtract 2 on both sides
Step 3:
x = - 15 ÷ - 5 Divide
Answer:
x = 3
Hope This Helps :)
Answer:
A. 5
Step-by-step explanation:
The triangle will be a right triangle when the side lengths satisfy the Pythagorean theorem: the sum of the squares of the legs is equal to the square of the hypotenuse.
(x +1)^2 +x^2 = (√61)^2
x^2 +2x +1 +x^2 = 61 . . . eliminate parentheses
2x^2 +2x = 60 . . . . . . .subtract 1, collect terms
x^2 +x -30 = 0 . . . . . divide by 2, subtract 30
(x +6)(x -5) = 0 . . . . factor the quadratic
x = -6 or +5
The solution is x = 5.
_____
Side lengths cannot be negative. Solution values are values of x that make the factors zero. x+6=0 when x=-6, for example.
Answer:
B
Step-by-step explanation:
its hard to explain, but just trust me bro. lol.
