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3 years ago

11

PRE -CALC QUESTION PLS HELP

1 answer:

Delicious77 [7]3 years ago

6 0

For this case we have the following vector:
v = (- 8, 2)
Using product point we have:
v.v = (-8, 2). (- 8, 2)
v ^ 2 = (-8) * (- 8) + (2) * (2)
v ^ 2 = 64 + 4
v ^ 2 = 68
v = root (68)
v = root (4 * 17)
v = 2 * root (17)
Answer:
v = 2 * root (17)
option c

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For the given central angle, determine the distance traveled along the unit circle from the point (1, 0). 210 degrees a. 3.67 un

Black_prince [1.1K]

Answer:

3.67 units

Step-by-step explanation:

The central angle is at the point (0,0).

Then it's at the point (1,0)

Then it moved 210 degrees.

Let's bear in mind that we start moving the degree from it's current position.

So moving 210 degrees is moving 180 degrees plus 30 degrees.

Moving 180 degrees I like transforming linearly.

Now the location is at (-1,0)

But the distance covered will be

= 2πr*210/360

r = 1

= 2*3.142*1*(210/360)

= 6.144*0.5833333

= 3.67 units

3 0

3 years ago

PLS HURRY THANK YOU.

SashulF [63]

<u>Given</u>:

The arithmetic sequence is represented in the table.

The general form of the arithmetic sequence is given by

$a_n=a_1+(n-1)d$

We need to determine the value of the missing term.

<u>First term:</u>

From the table, we need to determine the first term of the arithmetic sequence.

From the table, the value of the first term is 3.

Thus, $a_1=3$

Hence, the first term is 3.

<u>Common difference:</u>

From the table, we can determine the common difference of the arithmetic sequence.

Thus, we have;

12 - 3 = 9

Hence, the common difference is $d=9$

<u>Value of the missing term:</u>

The value of the term 45 can be determined by substituting n = 45 in the general form $a_n=a_1+(n-1)d$

Thus, we have;

$a_{45}=3+(45-1)(9)$

$a_{45}=3+(44)(9)$

$a_{45}=3+396$

$a_{45}=399$

Hence, the value of the term 45 is 399.

Thus, the value of the missing term is 399.

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