The common ratio is -8/4 = -2. The general formula for the n-th term is ...
... an = a1·r^(n-1) . . . . . . note the use of the caret (^) and parentheses
For r = -2 and a1 = 4, this becomes ...
... an = 4·(-2)^(n-1) . . . . approximately matches the 2nd selection
Answer:
Length of beads altogether in the necklace = 3.75 cm
Step-by-step explanation:
Length of the beads used in a necklace = cm
Number of beads used in the necklace = 3
Therefore, length of beads in the necklace = Length of each bead × Number of beads used
=
=
= 3.75 cm
Length of the beads altogether in the necklace = 3.75 cm
Answer:
Your answer is 61.
Step-by-step explanation:
Simple enough! We simply round up each cost to the nearest whole dollar. $6.50 can be rounded to $7, $15.75 can be rounded up to $16, $2.25 can be rounded up to $3 (Note we're rounding up, in normal rounding we would round down to $2). Finally, $7.25 can be rounded up to $8.
Next comes simple algebra,
Therfore, your overestimate of the cost would be 61.
Answer:
1. Distributive property.
2. Combining like terms.
3. Addition property of equality.
4. Division property of equality.
Step-by-step explanation:
- The Distributive property states that:
- The Addition property of equality states that:
- The Subtraction property of equality states that:
- The Multiplication property of equality states that:
- The Division property of equality states that:
Given the following equation:
We can identify that the methods Maria used to solve it and the order, are:
1. Distributive property:
2. Combining (or adding) like terms:
3. Addition property of equality, because she added 36 to both sides of the equation:
4. Division property of equality, because she divided both sides of the equation by 12: