DUIVING Qudulal Equations by Factorin
Question 3
A student solved a quadratic equation as shown here:
2x2 + 5x = 12
x(2x + 5) = 12
x= 12or 2x + 5 = 12
x= 12or 2x + 5 - 5 = 12-5
x= 12or 2x = 7
x= 12or x=?
x=1,12
Explain the errors in the process. Then correct the errors, and solve the equation.
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the correct answer is 828.07

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

associative property hopes this ! : )

step-by-step explanation:

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart