There’s an even amount of negatives so will the answer be positive?
Answer:
x=1/4 or x=-1
Step-by-step explanation:
x−
1
x
+3x+3=0
4x2+3x−1
x
=0
Step 1: Multiply both sides by x.
4x2+3x−1=0
(4x−1)(x+1)=0(Factor left side of equation)
4x−1=0 or x+1=0(Set factors equal to 0)
x=
1
4
or x=−1
Check answers. (Plug them in to make sure they work.)
x=
1
4
(Works in original equation)
x=−1(Works in original equation)
Answer:
x=
1
4
or x=−1
Answer:
Even
Step-by-step explanation:
The picture is the explanation.
I hope this helps.
Answer:
5 1/4
Step-by-step explanation:
5 1/4 + 5 1/4 + 5 1/4 + 5 1/4 + 5 1/4 = 6 1/4
The work done by the man against gravity in climbing to the top is 16740 lb-ft
The work done against gravity relies on the height of the object and the weight at which the object is changing.
From the given information:
Taking the vertical y-axis when y = 0, then:
w(0) = 20 lb
w(90) = 20 - 8 = 12 lb
Provided that the paint leaks steadily, the function of y i.e. w(y) can be expressed as a linear function in the form:
w(y) = a + by ---- (1)
Thus;
From equation (1)
w(y) = 20 - 4y/45
The total weight becomes;
w = w(y) + the man's weight
w = 20 - 4y/45 + 170
w = 190 - 4y/45
Therefore, the work done against gravity is computed as:
W = ∫ w dy
where;
W = 16740 lb-ft
Learn more about work done against gravity here:
#SPJ1