10 * 10^2 - 7.79* 10^3
they have to be to the same power to add or subtract
change 10*10^2 to proper scientific notation (only 1 number before the decimal) 1*10^3
1*10^3 - 7.79*10^3 = (1-7.79) * 10^3=-6.79*10^3
A² + 2ab + b² = (a+b)²<span>
</span><span>
So we get
</span><span>16j</span>² + 24j + 9 = (4j+3)²
There is a formula for adding consecutive integers.
sum = (n * (n+1)) / 2
for summing 1 through 12 it is
sum = (12 * 13) / 2 = 156/2 = 78
The clock goes through two "12-hour cycles" in a day, so the answer is 2 * 78 or 156 times.
Answer: For the shade plants, the mean is twice as large as its range. For the sun plants, the mean is 4.4 times larger than its range.
First, calculate the mean for both. You have to add up all the values and then divide by the number of values (8).
For the shade, you get 10. For the sun, you get 22.
Now, subtract the highest and lowest in each to get the range.
For the shade, you get 5. For the sun, you get 5.
Just divide the mean by the range and you will get the factors of 2 and 4.4.
Answer:
Step-by-step explanation:
turfgrass fertilizers contain one or more plant nutrients; the most common of these are nitrogen, phosphorus (designated on labels as available phosphate, or P2O5), and potassium (designated as water-soluble potash, or K2O)
