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timofeeve [1]
3 years ago
6

Which of the following correctly completes the square for: x^2+2x=48

Mathematics
2 answers:
Ket [755]3 years ago
4 0

Answer:

(x+1)²= 49, the answer is B

Step-by-step explanation:

x² + 2x = 48

x² + 2x + (2/2)² -  (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² -  (2/2)²]

(x+1)²= 49, the answer is B

kodGreya [7K]3 years ago
4 0

Answer:

hey I'm pretty sure it's B. (x+2)²=49

Step-by-step explanation:

x²+2x+(2\2)²=48 + (2\2)²

(x+1)²=49

2 over 2 by the power of 2 = 1

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Factor completely 4x^5-20x^3
nikdorinn [45]

Answer:

<em>4x^3(x^2 - 5)</em>

Step-by-step explanation:

First, try to factor a common factor.

GCF of 4 and -20 is 4.

GCF of x^5 and x^3 is x^3.

Factor out 4x^3.

4x^5 - 20x^3 =

= 4x^3(x^2 - 5)

3 0
3 years ago
0.5, 3/16, 0.75, 5/48 least to greatest
jarptica [38.1K]
An easy way for me to do this is to either make all of the fractions into decimals or all the decimals into fractions, whatever you prefer. I prefer fractions, but for typing reasons I’m going to make them all decimals. Making 5/48 into a decimal you divide 5 by 48 and get 0.104... and divide 3 by 16 and get 0.1875. Then from there, look at whatever tenths place number is the least (the number after the decimal). Two of them have one, so moving onto the next number, 8>0, which means 0.104 is less then 0.1875. Then 5<7. So from least to greatest, 5/48 (0.104), 3/16 (0.1875), 0.5, 0.75.
Good Luck!
7 0
3 years ago
What is the value of x in the equation 8x – 2y = 48, when y = 4?
morpeh [17]

Answer:

x = 7

Step-by-step explanation:

since we know y = 4, we can plug this into the equation to find x

8x - 2y = 48

8x - 2(4) = 48

8x - 8 = 48

8x = 56

x = 7

4 0
3 years ago
Read 2 more answers
How do a graph y=5/3x-9
zaharov [31]

Step-by-step explanation:

y int is -9. to graph slope think a our rise/run. change in y / change in x. move 5 units up per 3 units right. it's a positive slope to the graph is increasing towards the right

8 0
3 years ago
Tell whether 12/8 and 3/6 form a proportion
Rus_ich [418]

Answer:

yes they do.... multiply 3/6 by 3 = 12/8

12/8 multiply by 1/3 = 3/6 or 1/2

Step-by-step explanation:

Don't you dare delete again eupora you are dum

my answer was correct you evil

6 0
3 years ago
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