Answer:
<h2>
x= −5−11√13/2, −5+11√13/2</h2>
Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula.
Exact Form:
x= −5−11√13/2, −5+11√13/2
Decimal Form:
x=17.33053201…,
−22.33053201…
Step-by-step explanation:
x(x+5)=387
Simplify
x(x+5).
x^2+5x=387
Subtract 387 from both sides of the equation.
x^2+5x−387=0
Use the quadratic formula to find the solutions.
−b±√b^2−4(ac)/2a
Substitute the values a=1, b=5, and c= −387 into the quadratic formula and solve for x.−5±√5^2−4⋅(1⋅−387)/2⋅1
Simplify.
x=−5±11√13/2
The final answer is the combination of both solutions.
x=−5−11√13/2, −5+11√13/2
The result can be shown in multiple forms.
Exact Form:
x=−5−11√13/2,−5+11√13/2
Decimal Form:
x=17.33053201…,
−22.33053201…
<h2>Hope it is helpful....</h2>
Step-by-step explanation:
Area = 14/5 m2
L = 2m
W = ?
area = LxW
14/5 = 2xW
2.8 = 2xW
W = 2.8/2
W = 1.4m
Answer:
The percentage decrease is 7%
Step-by-step explanation:
To find the percent decrease, first find the difference in the two costs.
$210,000 - $195,300 = $14,700
Now divide that number by the original cost.
$14,700/$210,000 = 7%
First plane: y = 500x + 1000
Second plane: y = 550x
Distance: 3100 = 500x + 1000 + 550x
2100 = 1050x
x = 2
Answer:
-94.5
Step-by-step explanation:
7.5 less 102 is equivalent to the negative of 102 less 7.5: -(102 - 7.5) = -94.5.
It is not strictly necessary to reverse the order of the numbers as shown above, but 102 - 7.5 is more famliar (and thus easier to deal with) than
7.5 - 102.