Answer:
A, C, D
Step-by-step explanation:
Remember: Exponents are simply repeated multiplication.
The exponent determines how many times to multiply the base number by itself.
Option 'A' and 'C' apply.
Option D applies because:
Answer:
Choice 'D' (10x + 9) (10x-9) is the correct answer
Step-by-step explanation:
100x^2 - 81
This is a difference of squares...
therefore = (10x + 9) (10x - 9)
The geometric mean of 32 and 2 is 8
2x + 5y = 34
x+2y = 14
Multiply the second equation by two to create like terms for one variable.
2(x+2y = 14)
2x + 4y = 28
2x + 5y = 34
2x + 4y = 28 -- Subtract.
y = 34.28 = 6
Solve for x
x + 2(6) = 14
x + 12 = 14
x = 2
Check:
2 + 2(6) = 14
2 + 12 = 14
14 = 14
Answer:
X = 2
Y = 6
Answer:
The distance is 88 units
speed = 11 units per minute
Step-by-step explanation:
To find the distance, take the second point and subtract the first point
-100 - (-12)
-100+12 = -88
Distance is the number (direction is positive or negative)
The distance is 88 units
To find the speed, take the distance and divide by the time
speed = 88 units / 8 minutes
speed = 11 units per minute
