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miv72 [106K]
3 years ago
9

I need help with trigonometric pleasee

Mathematics
1 answer:
Zepler [3.9K]3 years ago
4 0

Answer:

Step-by-step explanation:

Cos(61) = 0.4848

This is more or less the value of cos(60) which is 1/2

You know you are in trouble when a question says approximately. How approximate is approximately. My guess, and it is a guess, is that this means the nearest degree. That would be 14 degrees. The more exact answer is 13.80 and that zero matters. It is a place holder.

Sin(67) = 0.9205 Again, how approximate is approximate? Try 0.92 as your answer.

Tan (18) = 0.3249 Try tan(18) = 0.3

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If you have questions like finding x or y or anything with letters like that answer this or comment them and i will answer it fo
Svetach [21]
Ok I’ll be sure to do it
6 0
3 years ago
Solve the equation: 13W - 2(4W + 1) = W - 58 *
Sergio [31]

Answer:

W = - 14

Step-by-step explanation:

13W - 2(4W + 1) = W - 58

13W - 8W - 2 = W - 58

13W - 8W - W = 2 - 58

4W = - 56

W = - 56 : 4

W = - 14

6 0
3 years ago
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What is the probability of rolling at least one six in three rolls of die
vitfil [10]

Answer:

91/216

Step-by-step explanation:

4 0
3 years ago
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Two boats traveling toward a lighthouse that is 20o ft above sea level at its top. When the 2 boats and the lighthouse are colli
masha68 [24]

Answer:

The measure of x=11.35^{\circ}

Step-by-step explanation:

We are given that

Height of tower=200ft

Distance between two boats=250 ft

From given figure

\frac{perpendicular\;side}{base}=tan\theta

\frac{200}{base}=tan15^{\circ}

base=\frac{200}{tan15^{\circ}}=746.55 ft

Again ,

\frac{200}{746.55+250}=tan x

\frac{200}{996.55}=tan x

x=tan^{-1}(0.20069)=11.35^{\circ}

Hence, the measure of x=11.35^{\circ}

7 0
4 years ago
What is the completely factored form of f(x)=x3−7x2+2x+4?
expeople1 [14]

Answer:

Factored form is

f(x)= (x-1)(x-3+√(-5))(x-3-√(-5))


Step-by-step explanation:

Given that  

f(x)=x3−7x2+2x+4

To solve for x  we factorise the right side

f(x)=x3−7x2+2x+4

Let us substitute x for various values to check whether remainder is zero.

i.e. f(1) = 1-7+2+4  =0

     

Hence x-1 is a factor

Do synthetic division to find the quotient

1       1    -7    2    4

              1     -6   -4

       ----------------------

        1    -6    -4   0

i.e. we get remainder 0 and quotient as

x^2-6x-4

Use completion of squares method to solve this

x^2-6x-4

= (x-3)^2+5=0

x-3= ±√(-5)

Or x=1,3+√(-5,)  3-√(-5,)

Are the roots

Factored form is

f(x)= (x-1)(x-3+√(-5))(x-3-√(-5))


3 0
3 years ago
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