3 (2x + 1) = 21
6x + 3= 21
-3 -3
6x = 18
Divide each side by 6, and x equals 3.
3 (2(3) + 1) = 21
3 (6 + 1) = 21
18 + 3 = 21
Hope this helps! Can I please have brainliest so I can level up? Thank you!
Answer: The x represents the reference point
Step-by-step explanation: motion maps are another way to represent the motion of an object. (Other representations are graphical and mathematical models). ...An object is in motion if it changes position relative to a reference point.
Answer:
Length = 2x+y cm and since it's a rectangle,
2x+y=3x-y ---------------- (i)
width = 2x-3 cm
It's perimeter,
2(2x+y+2x-3)=120 ---------------- (ii)
Solving both equations,
x = 14 cm
y = 7 cm
so length is, 2×14+7 = 35 cm
and width is, 2×14-3 = 25 cm
so area will be, 35×25 = 875 cm²
Answered by GAUTHMATH
First find the gradient by using partial derivatives.
Sub in given point (0,-1,2) for x,y,z
∨
Next, find unit vector from directional vector (0,-1,2) --> (-3,4,-3)
Finally, use dot product on gradient and unit vector to get directional rate of change.
Answer is approx 61.398
Answer:
Identity property of addition.
Step-by-step explanation:
The identity property of addition says that the sum of 0 and any number is that number. So 99.78 + 0 = 99.78 is identity property of addition. This is true because the definition of 0 is "no quantity", so when we add 0, the number doesn't change.
