Answer:
<h3>The options A),B) and E) are correct</h3><h3>A) The given expression
is equivalent to
</h3><h3>B) The given expression
is equivalent to
</h3><h3>E) The given expression
is equivalent to
</h3>
Step-by-step explanation:
Given expression is
<h3>To find the equivalent expressions to the given expression :</h3>
A)
Solving the expression
<h3>∴
</h3><h3>∴ The given expression
is equivalent to
</h3>
B)
<h3>∴ The given expression
is equivalent to
</h3>
E)
Solving it we get
∴
<h3>∴ The given expression
is equivalent to
</h3><h3> ∴ options A),B) and E) are correct</h3>
90 - x = 81
x = 90 - 81 = 9
The answer is 9.
Answer:
Radius, r = 61 cm
Step-by-step explanation:
According to the attached figure, we have,
Length of chord, AB = 22 cm
Such that, AP = PB = 11 cm
OP = 60 cm
It is required to find the radius of the circle. We know that radius of a circle is perpendicular to chord. So, APO forms a right angled triangle. Using Pythagoras theorem to find the radius of circle. Let it is r. So,
So, the radius of the circle is 61 cm.
Answer:
and
Step-by-step explanation:
The following polynomial is needed to be solved:
The roots are found by means of the General Equation for Second-Order Polynomials:
and
Physically speaking, both solutions are reasonable.
Not really sure but hope this works so first you need to multiply the parentheses by 4 then multiply the parentheses again and lastly is collect the like terms answer should be 4x^2+80x+300