Answer:
See explanation below.
Step-by-step explanation:
A number bond shows what two parts add to make the number. The 1 in the bigger circle is equal to the two small circles each 1/2.
On the number line you have drawn from 0 to 1 a bar. This is the whole number. Divide the bar with one line exactly at the half.
This now shows that two bars or 1/2 + 1/2 becomes 1 big bar or 1. This shows the same relationship as the number bond.
Answer:
Population standard deviation (σ) = 0.3 in
Step-by-step explanation:
Sample mean = 3.07 in
Sample standard deviation (s) = 0.21 in
Sample size (n) = 62 cups
Population standard deviation (σ) = ?
The point estimate for the population standard deviation is given by sample standard deviation divided by the square root of the sample size:
Answer:
b = -23/16
Step-by-step explanation:
The variable x can be eliminated from the system by multiplying the first equation by -2 and adding that to the second equation.
-2(-4b +x) +(8b +2x) = -2(7) +(-9)
16b = -23 . . . . . collect terms
b = -23/16 . . . . divide by the coefficient of b
The value of b is -23/16 = -1 7/16.
Answer:
E
Step-by-step explanation:
-18x + 21 > -15
-18x > -36
x < 2
20x - 13》17
20x》40
x》2
Or is union
Union of x < 2 and x》2 is all real numbers
