if the equation is (a+1)(a+1)=0,
the answer is -1 because if you insert -1 to a, it becomes 0. I hope it helped!^^
Answer:
0
Step-by-step explanation:
1^2=1
2^2=4
3^2=9
We can stop here because the from here on forward they are bigger than 10 itself.
She bought 3 necklace and bracelet sets
Step-by-step explanation:
The given is:
- Selena spends $53.94 to buy a necklace and bracelet set for each of her friends
- Each necklace cost $9.99
- Each bracelet cost $7.99
We need to find how many necklace and bracelet sets she bought
Assume that the number of necklace and bracelet set is x
∵ Selena bought x necklace and a bracelet sets
- Each set contains a necklace and a bracelet
∵ Each necklace cost $9.99
∵ Each bracelet cost $7.99
∴ The cost of one set = (9.99 + 7.99)
∵ She spent on them $53.94
- Add the cost of a necklace and the cost of a bracelet and
multiply the sum by x and then equate the product by 53.94
∴ (9.99 + 7.99)x = 53.94
∴ 17.98 x = 53.94
- Divide both sides by 17.98
∴ x = 3
She bought 3 necklace and bracelet sets
Learn more:
You can learn more about the word problems in brainly.com/question/10557938
#learnwithBrainly
You will find the ratio of the perimeters by writing the length of 28 yards over 8 yards and simplifying it.
28/8 = 7/2
To find the ratio of the areas, you will multiply this by itself because there are two dimensions in an area.
7/2 x 7/2 = 49/4
The second choice is correct.
5/8
You have to find the common denominator.The common denominator is 8. So multiple by 2, 1*2/4*2 Which equals 2/8. Now add 3/8+2/8 and it equals 5/8
