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Charra [1.4K]
3 years ago
12

What number must you add to complete the square? x^2+6x=23

Mathematics
1 answer:
Shalnov [3]3 years ago
8 0

Answer:

9

Step-by-step explanation:

using the formula (b/2)^2 you will divide 6 by 2 and square it. you will get 9. if you add 9 to the left side, you would have to add it on the right side as well (23+9=32). your answer should look like x^2+6x+9=32

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yuradex [85]
Let's see!
2x + 2x + 2 = 4 + 2x\\ 4x + 2 = 4 + 2x\\ 4x - 2x + 2 = 4 + 2x - 2x\\ 2x + 2 = 4\\ 2x + 2 - 2 = 4 - 2\\ 2x + 0 = 2\\ 2x = 2\\ 2x/2 = 2/2\\ x = 1\\
The answer is B
3 0
3 years ago
Jorge ordered 22 bottles of juice. Each bottle holds 6.32 ounces of juice.
Umnica [9.8K]

Answer: On the first one its either A or D. (I think)

Step-by-step explanation:

So what I did was I multiplied 22 and 6.32 together and got 139.04 and the closest estimate to that would be 160 because 39 is closer to 60 than 20 (A) and since its not 150 the estimate would be lower than higher. (D)

4 0
3 years ago
Read 2 more answers
Mariam and Sana are excited that a new store just opened in town! They go together the first day it opens! Each time Mariam goes
Vadim26 [7]

Answer:

Mariam went to the store 5 times, while Sana went 3 times.

Step-by-step explanation:

Since Mariam and Sana are excited that a new store just opened in town, and they go together the first day it opens, and each time Mariam goes to the store she plans to spend Rs. 30, and each time Sana goes to the store she plans to spend Rs. 50, and a few weeks from now, Mariam and Sana are surprised to find out that they have spent the exact same total amount of money at the store, to determine what is the least possible number of times that Mariam has been to the store the following mathematical reasoning has to be done:

To know how many times Mariam went and how many times Sana went to the store, since she spends Rs. 30 and the other Rs. 50, and they have spent the same after a few weeks, it is through the search for the lower common multiple of both numbers.

Thus, the common multiple less than 30 and 50 is 150 (30 x 5 or 50 x 3). Therefore, Mariam went to the store 5 times, while Sana went 3 times.

8 0
2 years ago
N a survey, a group of students were asked their favorite sport. Eighteen students chose "other" sports. baseball: 40% football:
Paladinen [302]

Answer:

22.5%

Step-by-step explanation:

The total number of students in percentage terms is 100%

Students that chose others = 100% - 40% - 37.5% = 22.5%

6 0
3 years ago
Suppose a creditor offers you an agreement where the infest accrues as follows: I=Prt, where I is interest owed ($), P is the am
maksim [4K]

Answer:

They are important becasue that decides how much money that you would pay on top of the borrowed ammount.

Step-by-step explanation:


5 0
3 years ago
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