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3 years ago

The angles below are supplementary. What is the value of X ? 6x + 48 / 60 degrees -2. 27. 12. 18

Mathematics

2 answers:

kotykmax [81]3 years ago

6 0

Answer: Its 12 I got it right on my test thank me later ;)

Step-by-step explanation:

kherson [118]3 years ago

4 0

Answer:12

Step-by-step explanation:

6x+48+60=180

since supplementary angles equal 180 degrees you would set up the equation like above

Then you would add 48 and 60 which will give you 108.

6x+108=180

Then subtract 108 from both sides adn you get

6x=72

divide both sides by 6 and your final answer is

x=12

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Solve the equation. Check your solutions when necessary. 2x² − 7x = 4

prisoha [69]

Answer:

x= -1/2 = -0.500

x=4

Step-by-step explanation:

2x^2-7x-4=0

2x^2-8x+1x-4=0

2x(x-4)+1(x-4)=0

(2x+1)(x-4)=0

2x+1=0...2x= -1.. x= -1/2 x-4=0 .. x=4

checking the solution

2(-1/2)^2-7(-1/2)=4..... 4=4

2(4)^2-7(4)=4....... 4=4

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2 years ago

What is the difference between 43.68 - 40.67

mote1985 [20]

It would be 3.01 because 40.00-40.00 is 0 then take away the other numbers 3.68- 0.67 is 3.01

7 0

2 years ago

What is -9x-(2x/-3) When x equals 7

yuradex [85]

$-9x- \frac{2x}{-3}$

$-9*(7) - \frac{2*7}{-3}$

$9*7 = 63$

$\frac{2*7}{-3} = \frac{14}{-3}$

Apply the fraction rule : $\frac{a}{-b} = - \frac{a}{b}$

$= - \frac{14}{3}$

$-63-( -\frac{14}{3} )$

Apply rule - ( - a) = a

$-63+ \frac{14}{3}$

Convert element to fraction :

$63 = \frac{63}{1}$

$-\frac{63}{1} + \frac{14}{3}$

Find the LCD 1*3 = 3

$- \frac{63*3}{3}+ \frac{14}{3}$

$\frac{-3+63+14}{3} = \frac{-175}{3}$

Apply the fraction rule : $\frac{a}{-b} = - \frac{a}{b}$ 

$= - \frac{175}{3}$

hope this helps!

4 0

3 years ago

How to solve f(4) = x^2+7x-22

geniusboy [140]

Answer:

Step-by-step explanation:

1. Plugin 4 for each corresponding X value

2. Should look like 4^2+7(4)-22

3. Once ran through a calculator you should end up with a value of 22

6 0

2 years ago

3y - 21 = 12x Help please

Irina18 [472]

Simply
3Y+-21=12X

Re-order the terms
-21+3Y=12X

(Solving for Y variable)

Move all terms containing y to the left, all other terms to the right.

Add 21 to each side of the equation
-21+21+3Y=21+12X

Combine like terms: -21+21=0
0+3Y=21+12X
3Y=21+12X

Divide each side by 3
Y=7+4X

Simplifying
Y=7+4x
I hope this helps!! :)

3 0

2 years ago