Answer: The answer is 64
Step-by-step explanation:
you have x squared so you do 10 minus its self and you subtract 18 giving you 8 then you replace the x squared and do 8 x 8 giving you 64
Answer:
50 · (2 x 10^6) = 1 × 10^8
Step-by-step explanation:
In scientific notation a large number is converted to an equivalent decimal number between 1 and 10, multiplied by 10 raised to some power. Very small numbers are converted to an equivalent decimal number between 1 and 10, multiplied by 10 raised to some negative power.
X=6 because 2*6=12 and 12+4=16
10a + 8b = 230
a + b = (2 + 2 + 13 + 10)...a + b = 27 (this is the number of gifts to buy)
a = 27 - b
10(27 - b) + 8b = 230
270 - 10b + 8b = 230
-10b + 8b = 230 - 270
-2b = -40
b = -40/-2
b = 20 <=== she bought 20 eight dollar gifts
a = 27 - b
a = 27 - 20
a = 7 <=== she bought 7 ten dollar gifts
Answer: 12 1/2 ft or 12.5 ft
Step-by-step explanation:
Half a ft is 6