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skad [1K]
3 years ago
7

If tan A= 1,what is the value of A​

Mathematics
1 answer:
xxMikexx [17]3 years ago
6 0

Answer:

45°

Step-by-step explanation:

Ok, so, there is one thing I need to point out. 45° is the 'main' value if you assume 0°<A<180°. However, sin,  cos, and tan have different periods which means that there are infinite values of A where tanA = 1. The general notation that you could put is A = 45° + (n*180°) where n is just a number. For example, if n = 1, you would get an angle of 225°. If you plug tan225° into the calculator, you get 1. If you did radians, you could write A = \frac{\pi}{2} + n\pi. But ignore that if you haven't. Basically, the answer would be 45° if you are assuming A is between 0° and 180°. Also, you could have just used your calculator and types inverse tan function (tan^{-1}) and plug in 1 to find the primary answer of 45.

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Answer:

120 and 260

Step-by-step explanation:

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3 0
3 years ago
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In the diagram below what is the length of arc AC ? Round to the nearest inch.
valentina_108 [34]
As AB is a diameter, then m∠CBA=180^{0}-75^{0}=105^{0}. 
∠CBA is a central angle, so its measure multiplied by radius is the length of arc AC.
Note that 105^{0}=7\cdot 15^0 and 15^{0}= \frac{\pi}{12}. Then 105^{0}= \frac{7\pi}{12} = \frac{7\cdot 3.14}{12}=1.83 and length of the arc is 12\cdot 1.83=21,96.The correct answer is 22 in.

4 0
3 years ago
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HELP MARKING BRAINLIEST EXTRA POINTS !!
Scrat [10]

Answer:

  • The quadrilateral is a rectangle
  • Perimeter=8\sqrt{2} \,\,Unit
  • Area=6\,\,sq.unit

Step-by-step explanation:

Given,

A=(0,0)\\B=(1,1)\\C=(4,-2)\\D=(3,-3)

Now,

Slope\,\,for\,\,AB=\frac{1-0}{1-0} =1\\\\Slope\,\,for\,\,CD=\frac{-3+2}{3-4} =1\\\\Slope\,\,for\,\,AD=\frac{-3-0}{3-0} =-1\\\\Slope\,\,for\,\,BC=\frac{-2-1}{4-1} =-1\\\\So,AB||CD\,\,and\,\,AD||BC

AB=\sqrt{(1-0)^2+(1-0)^2}=\sqrt{2}\\BC=\sqrt{(4-1)^2+(-2-1)^2}=3\sqrt{2}\\CD=\sqrt{(3-4)^2+(-3+2)^2}=\sqrt{2}\\AD=\sqrt{(3-0)^2+(-3-0)^2}=3\sqrt{2}\\\\So,\,\,AB=CD,AD=BC\\The\,\,quadrilateral\,\,is\,\,a\,\,rectangle

Perimeter=2*(AB+AD)=2*(BC+CD)\\=2*(\sqrt{2}+3\sqrt{2})=8\sqrt{2} \,\,Unit

Area=AB*AD=BC*CD=\sqrt{2} *3\sqrt{2}=6\,\,sq.unit

Hope you have understood this.....  

ask me if you have any confusion.....  

if you liked it pls mark it as the brainliest

5 0
3 years ago
A TV is on sale at 30% off for $420. What was the original price of the TV?
liberstina [14]
<span>"A TV is on sale at 30% off for $420"
 
What was the original price of the TV?
</span>

Well if you start to calculate first off you are sooner or later going to figure out that in order for it to be 420 the answer has to be bigger than 1,000. If you get to 1,200 and calculate 30 percent off of it it the answer is 360 so a ballpark quesstiminate would be to go two more hundredths up. Therefore 30 percent of 1,400 is 420
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3 years ago
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Answer:

Step-by-step explanation:

Number of candies with Forest = 12

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From the given Venn diagram,

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Do not contain chocolate                 1                                        2

6 0
3 years ago
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