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Nitella [24]
3 years ago
9

#12 please I don't if anyone knows the GUESS method, that would be great

Mathematics
1 answer:
pochemuha3 years ago
4 0
An hour and five minutes
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I need trigometry help
Alex Ar [27]
A^2=b^2+c^2-2bc Cos(A)
(270)^2=(255)^2+(442.85)^2-2(255)(442.85)Cos(A)
A=Cos^(-1)(270^2-255^2_(442.85)^2)/(-2*255*442.85)=33.5435
solve for angle A approximately is 33.54 degrees.
sinA/a=SinB/b
Sin33.54/270=SinB/255
B=Sin^(-1)(sin33.54/270*255)approximately is 31.45.
180-31.45-33.54=115.01 is Angle C.

4 0
3 years ago
Find the exact value of sec (–660)°
Nostrana [21]
Add full rotations of 360° degree until the angle of between 0° and 360°.
Sec (60)
The exact value is sec (60) is 2
8 0
3 years ago
Problem page the length of a rectangle is four times its width. if the perimeter of the rectangle is 70 cm , find its area.
agasfer [191]
So we can call the width of the rectangle x.
So then the length would be 4x.
The perimeter would then be 10x.
Since the perimeter is 70, we can say 70 = 10x.
And then simplify that to 7 = x.
So the length of a rectangle would be 28 cm, and the width would be 7.
So to find the area, just multiply length by width.
28*7 = 196 square cm
So the rectangle's area is 196 square cm.

I hope I helped!
5 0
3 years ago
Which has the same value as 15 tens
Alex73 [517]
It is 1 and one half.
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3 years ago
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Is it true that Terms with no variables are like terms?
oksano4ka [1.4K]

Answer:

yes

Step-by-step explanation:

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