Express
1 answer:
Answer:
Step-by-step explanation:
The solution is in the picture
At line 7, the denominator of the expression contains irrational number (which is surd 10). This shows that the expression is not simplified
At line 8 of my solution, multiply both numerator and denominator by the conjugate of
which is
in order to eliminate irrational number at denominator
More info of conjugate
The conjugate of a+b is a-b,
Why conjugate? Try it yourself!
Hint: (a+b)(a-b) = a^2 - b^2
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Answer:
Which graph's shaded region represents the possible combinations of coffee and tea for this order?
The general equation of line with the slope "m" and passing points (a,b) is :
y - b = m (x -a)
In the given question:
Slope m = -2, passing points (a,b) = (4,-4)
Substitute the value of a = 4, b = -4 in the general equation of line
The equation with the slope -2 and passing points (4,-4) is 2x + y = 4
Answer : 2x + y = 4
Answer:
The area of the sector (shaded section) is 29.51 .
Step-by-step explanation:
Area of a sector = (θ ÷ 360)
where θ is the central angle of the sector, and r is the radius of the circle.
From the diagram give, diameter of the circle is 26 m. So that;
r =
= = 13 m
θ = 360 - (180 + 160)
= 360 - 340
=
Thus,
area of the given sector = x
x
= x x
x 169
= 29.5079
The area of the sector (shaded section) is 29.51 .