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4 years ago

Please please help me I am struggling !

Mathematics

2 answers:

REY [17]4 years ago

8 0

The answer is C. put a 0 in the tenths place to change 0.5 to 0.05.

Kazeer [188]4 years ago

7 0

The answer is C. put a 0 in the tenths place to change 0.5 to 0.05.

It would make the number less than. Hope this helps!

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Can someone help me please

rjkz [21]

Answer:

I'm gonna go with D

Step-by-step explanation:

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3 years ago

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If the endpoints of AB are A(-1,3), B(7,-1) What is the coordinate of the midpoint M

Kay [80]

Answer:

Step-by-step explanation:

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3 years ago

Expres each complex number in polar form. State the arguments in radians rounded to the nearest thousandth.

Arlecino [84]

Answer:

(a) In polar form complex number will be $5.3851\angle 68.1985^{\circ}$ and in radian argument is 0.378π

(b) $6.0827\angle -9.46^{\circ}$

angle will be 0.05255π

Step-by-step explanation:

We have given

(a) 2+5i

We have to represent in polar form

We know that magnitude is given by $\sqrt{(real\ part)^2+(imaginary\ part)^2}=\sqrt{2^2+5^2}=\sqrt{29}$

Argument is given by $tan^{-1}\frac{imaginary\ part}{real\ part}=tan^{-1}\frac{5}{2}=68.198$

So in polar form complex number will be $5.3851\angle 68.1985^{\circ}$

In radian argument will be $68.1985\times \frac{\pi }{180}=0.378\pi$

(b) We have given complex number $-6+i$

We know that magnitude is given by $\sqrt{(real\ part)^2+(imaginary\ part)^2}=\sqrt{(-6)^2+1^2}=\sqrt{37}$

Argument is given by $tan^{-1}\frac{imaginary\ part}{real\ part}=tan^{-1}\frac{1}{-6}=-9.46$

So in polar form complex number will be $6.0827\angle -9.46^{\circ}$

In radian argument will be $-9.46\times \frac{\pi }{180}=-0.05255\pi$

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4 years ago

Does Anybody know who this is!??!

Svet_ta [14]

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3 years ago

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Will give brainliest

andrey2020 [161]

Answer:

33.3 in²

Step-by-step explanation:

Apply the formula for finding the area of triangle that has an included angle and two given sides, which is, Area = ½*a*b*Sin*C

Where,

a = 7 in

b = 13 in

C = 133°

Plug in the values

Area = ½*7*13*Sin(133)

Area = 33.2765935 ≈ 33.3 in² (nearest tenth)

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3 years ago