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VladimirAG [237]
3 years ago
15

Find the measure of . (to the nearest tenth) PLEASE I NEED HELP :((​

Mathematics
1 answer:
Kobotan [32]3 years ago
7 0

Answer:

Step-by-step explanation:

This is classic right triangle trig.  First decide how each side is related to the angle theta.  The side 7.7 is opposite the angle theta, while the side 14 is adjacent.  That is the tangent ratio by definition.  Setting up the tan ratio:

tan\theta=\frac{7.7}{14}

To find a missing angle on your calculator, hit the 2nd button, then the tan button and enter in 7.7/14 and hit enter.  You should get an angle measure of 28.8°

If you did not get 28.8 then you are probably in radians.  Check it in the "mode" of your calculator.

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Ahat [919]

Answer:

2046

Step-by-step explanation:

The sum of 2^0 to 2^x added is equal to 2^(x+1)-1 but because 2^0 isnt included its 2^11-2 or 2048-2

6 0
3 years ago
Please help me idk this
vichka [17]

Answer:

\large\boxed{Surface\ Area=63\ cm^2}

Step-by-step explanation:

We have

square  with sides <em>s = 3cm</em>

four triangles with base <em>b = 3cm</em> and height <em>h = 9cm</em>.

The formula of an area of a square:

A_\square=s^2

The formula of an area of a triangle:

A_\triangle=\dfrac{bh}{2}

Substitute:

A_\square=3^2=9\ cm^2\\\\A_\triangle=\dfrac{(3)(9)}{2}=\dfrac{27}{2}=13.5\ cm^2

The Surface Area:

S.A.=A_\square+4A_\triangle\\\\S.A.=9+4(13.5)=9+54=63\ cm^2

5 0
3 years ago
Please help me! Thanks
Yuki888 [10]

Answer:

The answer is D. 22

Step-by-step explanation:


4 0
3 years ago
Can anyone help me with this question please ? <br> I’ll mark you as a brainliest
DanielleElmas [232]
B is the answer i beleive
4 0
3 years ago
G a spherical tank has a capacity of 300 gallons. using the fact that 1 gallon is about 0.1337 ft3, find the radius of the tank
Paladinen [302]
Volume of a sphere is  V=(4/3)pi r^3
300(.1337)=(4/3)pi r^3
solve for r
r= 2.12 ft
5 0
3 years ago
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