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3 years ago

This one is extremely confusing I’ve worked it out 6 times and still no answer can somebody plz help

Mathematics

2 answers:

vivado [14]3 years ago

6 0

It should be A
Angle b=angle g
6x+8=4x+12
2x=4

Yakvenalex [24]3 years ago

4 0

Answer:

The answer is A) 2

Step-by-step explanation:

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What are the values of the variables in the triangle below?

harkovskaia [24]

Answer:

D) x=9 ; y=3√(3)

Step-by-step explanation:

$Sin(30)=\cfrac{y}{6\sqrt{3} }$

$\cfrac{18y}{6\sqrt{3}}=18\sin \left(30^{\circ \:}\right)$

$\sqrt{3}y=9$

$\cfrac{\sqrt{3}y}{\sqrt{3}}=\cfrac{9}{\sqrt{3}}$

$y=3\sqrt{3}$

$Cos(30)=\cfrac{x}{6\sqrt{3} }$

$\cfrac{18x}{6\sqrt{3}}=18\cos \left(30^{\circ \:}\right)$

$\sqrt{3}x=9\sqrt{3}$

$\cfrac{\sqrt{3}x}{\sqrt{3}}=\cfrac{9\sqrt{3}}{\sqrt{3}}$

$x=9$

Therefore, x=9 and y=3√(3)

8 0

1 year ago

Someone please help!!!!! WILL MARK BRAINLIEST

adoni [48]

Answer:

y = (1/2)x + 1

Step-by-step explanation:

linear line equation is y = mx + b

Where m is the slope and b is the y-intercept when x is 0.

For m, m is change in y(delta y) over change in x(delta x).

We are given two points: (0,1) and (4,3).

m = (y2 - y1)/(x2 - x1) = (3-1)/(4-0) = 2/4 = 1/2

y = (1/2)x + b

Now plug in (0,1) into above equation to find b value.

1 = (1/2)0 + b => b = 1

Final equation is y = (1/2)x + 1

3 0

2 years ago

No one is helping me and i really need help :(

galina1969 [7]

Answer:A

Step-by-step explanation:hope this helps :)

4 0

2 years ago

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Gabriela has dinner at a cafe and the cost of her meal is

Maksim231197 [3]

Answer: 51.75

Step-by-step explanation: 15 precent of 45 is 6.75

Then add 45+6.75

7 0

2 years ago

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Which of the following equations is quadratic?

djverab [1.8K]

Answer:

The quadratic equation is (x + 3)(x + 4) = 5

Step-by-step explanation:

If the degree of a polynomial is two then the polynomial is known as a quadratic.

Now, in the given equations we see which polynomial has a degree 2.

Simplify the first equation

$x(x^2+1)=0\\x^3+x=0$

Degree is 3 and hence it is not a quadratic.

Take 2nd equation

$5(4x+2)=3\\20x+10=3$

Degree is 1 and hence it is not a quadratic.

Finally, we simplify the third equation

$(x+3)(x+4)=5$

Apply FOIL method to simplify the left hand side

$x^2+4x+3x+12=5=5$

Degree is 2 and hence it is a quadratic equation.

5 0

2 years ago

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