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3 years ago

Which of the following best describes the solution to the system of equations below? -6x + y = -3 7x - y = 3

Mathematics

2 answers:

jarptica [38.1K]3 years ago

8 0

Answer:

x =0 y = -3 or (0.-3)

Step-by-step explanation:

Using elimination method

-6x + y=-3

7x - y = 3

Adding the two equation;

x = 0

Thus; y = -3 - 6(0)

y = -3

rusak2 [61]3 years ago

7 0

Answer:

y= -3

x= 0

Step-by-step explanation:

I will give the explanation in picture, hope you can understand it.

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1 point

weeeeeb [17]

Answer:

The answer is 0.71 per ounce.

Step-by-step explanation:

You can use proportions to solve this.

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3 years ago

Find the slope-intercept form of the equation of the line that passes through the point P and makes angle with the positive x-

SIZIF [17.4K]

Answer:

The answer is " $y= -x+7$ "

Step-by-step explanation:

If $\bold{\theta = 135^{\circ}}$

point: $p=(2,5)$

Formula:

$\to m= \tan \theta \\\\\to (y-y_1)= m(x-x_1)$

$\to m= \tan \ 135^{\circ} = -1\\\\\to x_1= 2\\\\\to y_1=5$

Put the value in the above formula:

$\to y- 5 = -1(x-2)\\\\\to y- 5 = -x+2\\\\\to x+y = 5+2\\\\\to x+y=7$

$\to y= -x+7$

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3 years ago

The measurement of a central angle is 75. Find the measurement of in radians

Marina CMI [18]

Circumference = 360 degrees
Circumference = 2π radians (comes from 2*pi*radius) 

Therefore 
360 deg. = 2*π radians 
180 deg. = π radians 
1 deg. = (π/180) radians 

75 deg. = 75(π/180) radians 
75 deg. = 75π / 180 radians 
don't bother to try and simplify π (it is an irrational number) 
however you can simplify 75/180 
both are divisible by 5 
75π/180 = 15π/36 
both are divisible by 3 
75 deg. = 5π/12 radians 

We normally don't bother to go further, unless you actually need it as a decimal fraction (in which case, you will have an approximation) 

75 deg. ≈ 1.308997 radians

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Nimfa-mama [501]

The answer is 92.805

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Vika [28.1K]

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