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Oliga [24]
3 years ago
12

What is the approximate area of the figure below?

Mathematics
2 answers:
Volgvan3 years ago
7 0
Semi circle can be added together to become a circle
Area of circle: pi * r^2
r = half diameter = 4/2 = 2
pi * 2^2 = 12.566 cm^2
Rectangle: L * W
4 * 6 = 24 cm^2 for rectangle
Add both areas
12.566 + 24 = 36.566
Solution: 36.57 cm^2
(I don’t know if you need to round)
sergejj [24]3 years ago
5 0

Answer:

96

Step-by-step explanation:

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The antlantic ocean region contains approximately 2 times 10^16 gallons of water. Lake Ontario has approximately 8,000,000,000,0
AnnyKZ [126]
2.5x10^3 I think. Exponents are subtracted. The number you're multipliying by has to be more than one.

4 0
3 years ago
The probability of a red marble being pulled from a bag full of colored marbles is
Mkey [24]
The answer is 5/7. That is the answer :)
6 0
3 years ago
Give the radian measure of an angle drawn in standard position that corresponds with the ray containing the coordinate point (−1
Sergeu [11.5K]

Answer:

The radian measure of the angle drawn in standard position that corresponds with the ray containing the coordinate point (-12, -3\sqrt{2}) is approximately 1.108\pi radians.

Step-by-step explanation:

With respect to origin, the coordinate point belongs to the third quadrant, which comprises the family of angles from \pi\,rad to \frac{3\pi}{2}\,rad. The angle in standard position can be estimated by using the following equivalence:

\theta = \pi\,rad + \tan^{-1} \left(\frac{3\sqrt{2}}{12} \right)

\theta \approx \pi \,rad + 0.108\pi \,rad

\theta \approx 1.108\pi\,rad

The radian measure of the angle drawn in standard position that corresponds with the ray containing the coordinate point (-12, -3\sqrt{2}) is approximately 1.108\pi radians.

5 0
2 years ago
What number can go into 25 and 48
sammy [17]
Answer: 1

explanation: factors of 25 are 1 and 5
Factors of 48 are 24, 2, 8, 6 , 1 , 3 , 16
8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cint%7B%5Bsin%289x%29cos%289x%29%5D%7D%20%5C%2C%20dx" id="TexFormula1" title="\int{[sin(9x)c
Sladkaya [172]

Recall the double angle identity,

sin(2x) = 2 sin(x) cos(x)

Then we can write

sin(9x) cos(9x) = 1/2 sin(2 • 9x) = 1/2 sin(18x)

Then

∫ sin(9x) cos(9x) dx

= 1/2 ∫ sin(18x) dx

= -1/2 • 1/18 cos(18x) + C

= -1/36 cos(18x) + C

though you could continue with another double angle identity,

cos(2x) = cos²(x) - sin²(x)

to rewrite the antiderivative as

= -1/36 (cos²(9x) - sin²(9x)) + C

= 1/36 (sin²(9x) - cos²(9x)) + C

5 0
2 years ago
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