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Natasha_Volkova [10]
3 years ago
8

Plssss help i want it now​

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
4 0
It would be D , please tell me if I’m correct
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What is the principal value cost of cos​−1<br> ​(0.69)
CaHeK987 [17]
We are asked to find the principal value of
cos ⁻¹ (0.69)
which is just the least positive angle
cos ⁻¹ (0.69) = 46.37°
Other values of 
cos ⁻¹ (0.69) is
46.37° - 180° n
where n is a whole number
6 0
3 years ago
Drag the correct factors to the expression. Not all factors will be used. Use synthetic division to find all the factors of this
fiasKO [112]

The factors are therefore;  (4x – 3), (x + 3) and (x – 1)

<h3>What is a polynomial?</h3>

A polynomial is is a function that contains an algebraic term which is raised to a particular power.

  • If it is raised to power 1 it is linear
  • If it is raised to power 2 it is quadratic
  • If its is raised to power 3 it is cubic
  • If it i raised to power 3 it is quartic

Now we have;

4x³ + 5x² – 18x + 9

Thus we can write;

4x³ – 3x² + 8x² – 6x – 12x + 9

Using the factors;

x²(4x – 3) + 2x(4x² – 3) – 3(4x – 3)

Therefore;

(4x – 3)(x² + 2x– 3)

(4x – 3)(x² + 3x – x – 3)

(4x – 3)(x + 3)(x – 1)

The factors are therefore;  (4x – 3), (x + 3) and (x – 1)

Learn more about polynomials:brainly.com/question/21334281

#SPJ1

3 0
1 year ago
Please help and if ur helpful enough there’s like a bunch of questions I need answered on my page :P have a good one!
____ [38]
1/5 x 105 = 21
1/5 x 75 = 15
6 0
3 years ago
Read 2 more answers
Sheet of paper.<br> 1. y&lt;4
TiliK225 [7]
Is there any more to the question? i’m confused
5 0
3 years ago
What are the minimum, first quartile, median, third quartile, and maximum of the data set?
allochka39001 [22]
If we rearrange the given data set from lowest to highest, we have 
     3,\:6,\:7,\:8,\:10,\:12,\:15,\:18

The minimum is 3.

The first quartile is the average of 6 and 7, which is 6.5

The median is the average of 8 and 10 which is 9.

The third quartile is the average of 12 and 15 which is 13.5.

The maximum is 18. 
4 0
3 years ago
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