3 years ago

Need help on this question asap

1 answer:

6 0

Using trigonometry
tan(x)=9/6
use your calculator to find x using tan-1(9/6) and you get 56.3° which is basically the first answer

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What is the solution to the system of equations below?

Karolina [17]

Answer:

The solution is the point (18,0)

Step-by-step explanation:

we have

$y=-\frac{1}{3}x+6$ -----> equation A

$y=\frac{1}{3}x-6$ -----> equation B

Solve the system by substitution

substitute equation B in equation A

$\frac{1}{3}x-6=-\frac{1}{3}x+6$

solve for x

Adds (1/3)x both sides

$\frac{1}{3}x-6+\frac{1}{3}x=6$

$\frac{2}{3}x-6=6$

Adds 6 both sides

$\frac{2}{3}x=6+6$

$\frac{2}{3}x=12$

$x=12(3)/2\\x=18$

<em>Find the value of y</em>

substitute the value of x in equation A or equation B

$y=-\frac{1}{3}(18)+6=0$

therefore

The solution is the point (18,0)

3 0

3 years ago

Read 2 more answers

Which algebraic expression represents this phrase? the product of 86 and the depth of the river

Marizza181 [45]

If "d" is used to represent the depth of the river, that product will be
86d

6 0

3 years ago

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30 Points PLS HELP!

xenn [34]

The answer for this is 38

4 0

2 years ago

Lisa walked 8 miles more than Tim . Lisa walked twice as far as Tim . How far did each walk ?

adoni [48]

L = 8 + T
L = 2T

You can combine them

2T = 8 + T
T = 8

If Tim walked 8, Lisa walked twice as much which is 16

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3 years ago

Which expressions are equivalent to the given expression?

liraira [26]

$2\sqrt{10}$ is equivalent to the expression $\sqrt{40}$

entire to mixed radical:

$\sqrt{40} \\\sqrt{4\ x\ 10} \\2\sqrt{10}$

decimal value:

$2\sqrt{10}=6.32....\\\sqrt{40}=6.32...$

3 0

2 years ago