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vladimir1956 [14]
3 years ago
5

PLEASE ITS DUE SOON HELP AGGGGGGGGGGG IM STRESSING

Mathematics
1 answer:
inna [77]3 years ago
4 0

Answer:

B

Step-by-step explanation:

You have to add 7 to both sides to isolate the variable

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the trigonometric functions are not one-to-one. but mathematicians wanted to define inverse functions. before that could be done
oee [108]

The restricted domains for the inverse trigonometric functions are the quadrants, that can be each of the following intervals:

  • 0 < x < 0.5π.
  • 0.5π < x < π.
  • π < x < 1.5π.
  • 1.5π < x < 2.

<h3>What are equivalent angles?</h3>

Each angle on the second, third and fourth quadrants will have an equivalent on the first quadrant. The relevance to these equivalent angles is that they may have equal values for the trigonometric functions, meaning that they are not one-to-one.

If we restrict the domain of the trigonometric functions in any of the four quadrants, we guarantee that they are one-to-one, hence the restricted domains are given as follows:

  • 0 < x < 0.5π.
  • 0.5π < x < π.
  • π < x < 1.5π.
  • 1.5π < x < 2.

More can be learned about trigonometric functions at brainly.com/question/16818112

#SPJ1

3 0
2 years ago
What is the sum of the geometric sequence −4, 24, −144, ... if there are 8 terms?
Helga [31]

Answer:

The sum of 8 geometric sequence is 959780

Step-by-step explanation:

We are given

this sequence is geometric

-4 , 24 , -144

First term is -4

so, a_1=-4

now, we can find common ratio

r=\frac{24}{-4}=-6

we can use formula

S_n=a_1(\frac{1-r^n}{1-r} )

n=8

now, we can plug values

S_8=-4(\frac{1-(-6)^{8}}{1+6} )

now, we can simplify it

and we get

S_8=959780

4 0
4 years ago
Someone please help! I have spent lots of time on this and I’m still confused
vfiekz [6]

Answer:

its the 3rd choice.

Step-by-step explanation:

Firstly, we find angle BDC (180-90-30=60)

Now that we found it we can use the sine rule to find DB (which i put as an x), which is sin60/14=sin30/x, by cross multiplication, we find that its equal to a decimal number, i will use its root version to this easier, its equal to 14sqrt3/3 inches.

And now we use the pythagorean theorem to find DC, we find that it is equal to 28sqrt3/3

Now, we find angle BAC (180-90-(30+15)=45)

Again, we use the sine rule to find AB (whom i will refer to as x and from whom we will subtract DB to find the length of AD), so we cross multiply in sin45/14=sin(30+15)/x, it is equal to 14.

So since AB-DC=AD

14-(14sqrt3/3)= 5.917096231 (and we ound that to a 5.9)

3 0
3 years ago
Evaluate 2d+3 when d =8
Snezhnost [94]

Answer:

19

Step-by-step explanation:

2(8) + 3

16 + 3

19

7 0
3 years ago
How many 1/3s are in 1 2/3
horrorfan [7]

Answer:

go on yt they have the answer <3

Step-by-step explanation:

5 0
3 years ago
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