Add 10 to both sides so that the equation becomes 5x^2 + 11x - 2 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
x = [ -b ± √(b^2 - 4ac) ] / (2a)
x = [ -11 ± √(11^2 - 4(5)(-2)) ] / ( 2(5) )
x = [ -11 ± √(121 - (-40) ) ] / ( 10 )
x = [ -11 ± √(161) ] / ( 10)
x = [ -11 ± sqrt(161) ] / ( 10 )
x = -11/10 ± sqrt(161)/10
The answers are -11/10 + sqrt(161)/10 and -11/10 - sqrt(161)/10.
Area of the parallelogram is 12 cm²
Step-by-step explanation:
- Step 1: The shape is that of a parallelogram. It can also be viewed as a rectangle when the triangle at the right side is placed to the side of the right triangle on the left side. The rectangle is formed with breadth covering 3 squares and length covering 4 squares.
Area of the rectangle = length × breadth
⇒ Area = 4 × 3 = 12 cm²
Answer:
44
Step-by-step explanation:
f(x) = -7x + 5x^2 + 10
f(-2) = -7(-2) + 5(-2)^2 + 10
= 14 + 20 + 10
= 44
550-500 is not 500 it’s 50
Answer:
75 cheeseburgers and 86 french fries
Step-by-step explanation:
This is a guessing math problem so do a random amount and change amount of items to get closer to the answer
81 x 3 = $243
80 x 1.50 = $120
243 + 120 = 363 -354 = 9 dollars
we need nine less dollars so 9/1.5 = 6 so six more fries
86 x 1.5 = 129
75 x 3 = 225
129 + 225 = $354
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