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solmaris [256]
3 years ago
11

Solve x2+12x=82 using completing the square. Answer the questions below.

Mathematics
1 answer:
galben [10]3 years ago
4 0

Answer:

exact form : x =  ± √ 118 − 6

Decimal form :  x =  4.86278049 or − 16.86278049

Step-by-step explanation:

Use the formula  ( b /2 ) ^2  in order to create a new term. Solve for  x  by using this term to complete the square.

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3 years ago
Write a linear function f with the values f(2)=4 and f(−7)=9. A function is f(x)=
ale4655 [162]

Answer:

f(x) = -5/9 x + 5 1/9

Step-by-step explanation:

f(2)=4 and f(−7)=9 means the line pass through (2,4) and (- 7,9)

f(x) = mx + b

m = (y-y') / (x-x') = (9 - 4) / (- 7 - 2) = - 5/9

for (2,4) : b = f(x) - mx = y - mx = 4 - (- 5/9) x 2 = 4 + 10/9 = 46/9 = 5 1/9

f(x) = -5/9 x + 5 1/9

check for (-7, 9)    f(-7) = (-5/9) * (-7) + 5 1/9 = 35/9 + 46/9 = 81/9 = 9

5 0
3 years ago
36 inches/second = yards/minute<br><br> How many yards?
gulaghasi [49]

Answer:

1 yard

Step-by-step explanation:

3 0
3 years ago
What is the value of x
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7 0
2 years ago
Complete equation describing how X and Y are related.
den301095 [7]

Answer:

2

Step-by-step explanation:

Every time the x-value increases by 1, the y-value increases by 2. Therefore, the slope of the line must be equal to 2/1=\boxed{2} (rise/y-values over run/x-values). In slope-intercept form y=mx+b, m represents the slope of the line, b represents the y-intercept, and (x,y) represents any point the line passes through.

Since m represents the slope of the line, the value of

While the question only asks for this value, it's good to note that the equation of the function is y=2x+7 (find 7 by substituting any ordered pair in the table with m=2).

6 0
2 years ago
Read 2 more answers
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