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kiruha [24]
3 years ago
12

Solve for x rounded to the nearest tenth. X 18 cos 70 =x/18

Mathematics
2 answers:
love history [14]3 years ago
5 0

Answer:

6.2 =x

Step-by-step explanation:

cos 70 =x/18

Multiply each side by 18

18cos 70 =x/18 *18

18cos 70 =x

6.15636258 = x

To the nearest tenth

6.2 =x

-BARSIC- [3]3 years ago
3 0

Answer:

x = 1260

Step-by-step explanation:

You might be interested in
If 3/4(x) is 12, then what is x?
iren [92.7K]

Answer:

16

Step-by-step explanation:

The equation is 3/4x=12, so you would just divide 12 by 3/4 to get 16 as x

6 0
3 years ago
Read 2 more answers
In each of the following ,make y the subject and hence find the value of y when a=2, b=3 ,and c=4.
zvonat [6]

Part i


\dfrac{2a-7}{6y} = \dfrac{3b-5}{2c}


y = \dfrac{ 2c(2a-7)}{6(3b-5)} = \dfrac{c(2a-7)}{9b-15}


Substituting,

y = \dfrac{4(2(2)-7)}{9(3)-15} = \dfrac{ -12}{12} = -1


Answer: -1


Part ii


I'm not sure that one's typed in correctly but I'll solve it as written.


3-34y + 2a = \dfrac{3b-5}{2c + 1}


34y  = 3+2a-\dfrac{3b-5}{2c + 1}


y = \frac 1 {34}\left(3+2a-\dfrac{3b-5}{2c + 1} \right)


We're not asked to simplify it so I wont. Substituting,


y = \frac 1 {34}\left(3+2(2)-\dfrac{3(3)-5}{2(4) + 1} \right) = \frac 1 {34}(7-4/9) = \dfrac{59}{306}


Answer: 59/306



3 0
3 years ago
How do you do this question please help me
Varvara68 [4.7K]
Well then you just do 15-6 right?


whats so hard bout this question?

brainliest would help
8 0
3 years ago
Part 1: Write mathematical equations of sinusoids.
Ilya [14]

Answer:

Part 1: Write mathematical equations of sinusoids.

1. The following sinusoid is plotted below. Complete the following steps to model the curve using the cosine function.

a) What is the phase shift, c, of this curve? (2 points)

b) What is the vertical shift, d, of this curve? (2 points)

c) What is the amplitude, a, of this curve? (2 points)

d) What is the period and the frequency factor, b, of this curve? (2 points

e) Write an equation using the cosine function that models this data set. (5 points)

2. The following points are a minimum and a maximum of a sinusoid. Complete the following steps to

model the curve using the sine function

Step-by-step explanation:

<em> </em><em>p</em><em>l</em><em>z</em><em> </em><em>f</em><em>o</em><em>l</em><em>o</em><em>w</em><em> </em><em>m</em><em>e</em>

5 0
2 years ago
Write parametric equations of the line with the equation 4x-6y=-12<br><br> HELP FAST
zimovet [89]

Answer: x = t, y = 2t/3 + 2

Step-by-step explanation:

You want to write both x and y in terms of t

so if you rearrange 4x - 6y = -12 you get

-6y = -4x - 12

6y  = 4x + 12

y = 2x/3 + 2

set x = t

and y = 2t/3 + 2

and that's it!

another one you could do is

x = t/2

y = t/3 + 2

or even

x = 3t/2

y = t + 2

i like this one the most because it looks more elegant

4 0
3 years ago
Read 2 more answers
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