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rosijanka [135]
3 years ago
7

Simplify the radical expression.Please help!

Mathematics
1 answer:
FrozenT [24]3 years ago
7 0

2 \sqrt{5}   - 3 \sqrt{5}  =  -  \sqrt{5}
So the answer is
3 \sqrt{3}  -   \sqrt{5}
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Pls help find shaded area
Pavlova-9 [17]
<h3>Exact area = 12pi - 9*sqrt(3)  square inches</h3><h3>Approximate area = 22.1106545749577 square inches</h3>

==========================================================

Work Shown:

Assuming the chord is horizontal along with the diameter, then this means the two smallest minor arcs are both 30 degrees each. This leaves the northern most arc to be 180-30-30 = 120 degrees in measure

A = area of northern sector (you can think of it as a pizza slize)

A = (angle/360)*pi*r^2

A = (120/360)*pi*6^2

A = 12pi

B = area of triangle

B = (1/2)*side1*side2*sin(included angle)

B = (1/2)*6*6*sin(120)

B = 18*sqrt(3)/2

B = 9*sqrt(3)

C = area of shaded region

C = A - B

C = 12pi - 9*sqrt(3)  .... exact area

C = 22.1106545749577 ... use a calculator to get the approximate area

6 0
3 years ago
P Simplify using
san4es73 [151]

Answer:

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Step-by-step explanation:

6+3=9

7(9)-4x5

63-4x5

63-20

Answer: 43

4 0
2 years ago
Solve for a,b 2^a × 2^b=144 value of a+3b+2 is...<br><br>please solve it...urgent...​
Nadya [2.5K]

Answer:

its a simple for me

Step-by-step explanation:

2+144 i

4 0
3 years ago
Need some help with this question please
Serggg [28]

Answer:

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Step-by-step explanation:

  • \cos( \alpha )  =  \frac{ad}{hip}  \\  \\  \sin( \alpha )  =  \frac{op}{hip}

Pythagorean theorem

hip² = op² + ad²

17² = x² + 8²

x² = 17² - 8²

x \:  =  \sqrt{{17}^{2}  -  {8}^{2} }  \\ x =  \sqrt{289 - 64}  \\ x =  \sqrt{225}  \\ x = 15

\sin( \alpha )  =   - \frac{15}{17}

\sin( -  \alpha )  =  \frac{15}{17}

4 0
3 years ago
What are the distances from the point (x,y) to the focus of the parabola and the directrix, select two answers
yulyashka [42]

Answer:

3,5

Step-by-step explanation:

axis

6 0
3 years ago
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