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aleksley [76]
3 years ago
9

Which perfect square equation represents x2+8x+11=0 by completing the square?

Mathematics
1 answer:
alexandr1967 [171]3 years ago
7 0

Answer:

Solve the equation for  x  by finding  a ,  b , and  c

of the quadratic then applying the quadratic formula.

Exact Form:

x = − 4 ± √ 5

Decimal Form: x = − 1.76393202 … , − 6.23606797 …

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PLS HELP! which graph is the function 3x + 2y = 8 with the given domain {-2,0,2,4}??
Romashka [77]

Answer:

D

Step-by-step explanation:

Domain of the function 3x + 2y = 8 are the possible set of x-values represented as {-2, 0, 2, 4}.

To know which graph represents the above given function, find the range values of the function by plugging in each value of x into the equation, to find y.

For x = -2,

3(-2) + 2y = 8

-6 + 2y = 8

2y = 8 + 6

2y = 14

y = 14/2

y = 7

(-2, 7)

For x = 0,

3(0) + 2y = 8

0 + 2y = 8

2y = 8

y = 8/2

y = 4

(0, 4)

For x = 2,

3(2) + 2y = 8

6 + 2y = 8

2y = 8 - 6

2y = 2

y = 2/2

y = 1

(2, 1)

For x = 4,

3(4) + 2y = 8

12 + 2y = 8

2y = 8 - 12

2y = -4

y = -4/2

y = -2

(4, -2)

The graph which shows the following set of coordinates pairs calculated above, ((-2, 7), (0, 4), (2, 1), (4, -2)), is the graph of the function 3x + 2y = 8.

Thus, the graph in option D the shows the following calculated coordinate pairs. Therefore, graph D is the answer.

7 0
3 years ago
What is the value of 7 to the 4th power
zhenek [66]

Answer:

The value is 2401

Step-by-step explanation:

First we need to understand what's means 7 to the 4th power, or 7^4.

7 is the power base, the power base is the number that we are going to repeat the number of times the exponent says.

4 is the exponent, which will tell us how many times to multiply 7.

So , then we would have

1)                7 x 7 x 7 x 7

2)                  49 x 7 x 7

3)                     343 x 7

4)      finally       2401

3 0
3 years ago
Jaylen just finished a 7 mile run.<br><br> How long (in minutes) do you think it took Jaylen?
Alexxandr [17]
Depends how fast she run in mile average is 8 min a mile so if she is consistent it would take here 56 min to an hour
3 0
3 years ago
Read 2 more answers
During a rainstorm a pail collects 1/3 of an inch of water in 5/6 of a minute. At what rate is the pail collecting water?
Delicious77 [7]

Answer:

2/5 of an inch per minute

Step-by-step explanation:

You can set up the rate as  \frac{1/3}{5/6}.  From here to find the amount of rain per minute, just multiply the numerator and denominator by 6/5 (The reciprocal of 5/6, so you can have one minute and see how much rains fills up in that time.)

You end with 2/5 of and inch per minute

4 0
3 years ago
HELP PLEASE WILL GIVE BRAINLISTTTTTTTTTTT
Mamont248 [21]

Answer:

C) 2/9

Step-by-step explanation:

1. you add up all of the marbles (18)

2. you find how much blue marbles are out of that sum of the total marbles (4/18)

3. simplify if possible (2/9)

5 0
2 years ago
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