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muminat
2 years ago
15

What is the domain of y=tan(X)? A. all real numbers where B. all real numbers where C. D.

Mathematics
1 answer:
VMariaS [17]2 years ago
7 0
I’m pretty sure it B.
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What is the equation of the linear function written in slope-intercept form?
-Dominant- [34]

Answer:

<h2>f(x) = -3x - 1</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line:

f(x)=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept, (0, b)</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

From the graph we have two points <em>A(-1, 2)</em> and <em>B(0, -1) → b = -1</em>.

Calculate the slope:

m=\dfrac{-1-2}{0-(-1)}=\dfrac{-3}{1}=-3

Finally:

f(x)=-3x-1

3 0
3 years ago
Ok, I would really like some help ^.^ If you could and have the time...would you mind breaking down the answer for me please, he
uysha [10]

Answer:

C

Step-by-step explanation:

4 x 4=16 and half of 4 is 2 so the answer is C)4

5 0
3 years ago
Read 2 more answers
If the measure of angle 3 is 80 degrees and the measurer of angle 6 is (2x)
spin [16.1K]
Answer:
X = 40
Explanation: (2x) = 80
80/2 = 40
X = 40 degrees
5 0
2 years ago
Find the value of sin(a/2) if cosa= 12/13<br>​
daser333 [38]

Answer: sin\frac{a}{2} = ± \frac{1}{\sqrt{26} }

Step-by-step explanation:

We very well know that,

cos2A=1−2sin²A

⟹ sinA = ±\sqrt{(1-} \frac{cos2A}{2} )

As required,  set A = \frac{a}{2}   &   cos a=  \frac{12}{13}    ,thus we get

sin \frac{a}{2} =± \sqrt{\frac{1-cos a}{2} }  

∴ sin\frac{a}{2} =±\sqrt{\frac{1-\frac{12}{13} }{2} } = ± \frac{1}{\sqrt{26} }

   since ,360° < \frac{a}{2} <450°

             ,180° < \frac{a}{2} <225°

Now, we are to select the value with the correct sign. It's is obvious from the above constraints that the angle a/2 lies in the III-quadrant where 'sine' has negative value, thus the required value is negative.

hope it helped!

   

5 0
3 years ago
The cube below is divided into 8 equal cubes and broken apart. What is the total surface area of all 8 cubes?
krok68 [10]

FORMULA:

TSA of cubes = 6(a)²

ANSWER:

We just have to plug the respective value.

So, TSA of 8 cubes = 6 × (12)²

  • 6 × 144
  • 864ft².

So, <u>Correct choice</u> - [C] 864 ft².

6 0
3 years ago
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