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3 years ago

Help will give Brainly points

Mathematics

1 answer:

Alexandra [31]3 years ago

5 0

Answer:

Use the SINE RULE:

$\frac{a}{ \sin( \alpha ) } = \frac{b}{ \sin( \beta ) }$

$\frac{6}{ \sin(60) } = \frac{x}{ \sin(90) }$

$x = \sin(90) \times \frac{6}{ \sin(60) }$

$x = 6.93$

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3<br> V = 63 cm<br> Can someone please help with this?

tatyana61 [14]

Answer:

v=21cm

Step-by-step explanation:

v= 63/3

v= 21cm

5 0

3 years ago

On a coordinate graph, which of the following is TRUE of Quadrant 3? is it A. The x and y values are both positive. B. The x val

Flura [38]

D is the answer . -JZ

6 0

3 years ago

Factor completely 3x^2+9x-3<br>3(x^2+3)<br>3(x^2+3-1)<br>3x(x^2+3x-1)<br>prime

Firdavs [7]

Answer:

Answer from the answer data to choose from

Factor completely

$3\left(x+\dfrac{3-\sqrt{13}}{2}\right)\left(x+\dfrac{3+\sqrt{13}}{2}\right)$

Step-by-step explanation:

$3x^2+9x-3=(3)(x^2)+(3)(3x)-(3)(1)\\\\=(3)(x^2+3x-1)\\\\\text{For}\ x^2+3x-1\ \text{use the quadratic formula}\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x^2+3x-1\to a=1,\ b=3,\ c=-1\\\\x=\dfrac{-3\pm\sqrt{3^2-4(1)(-1)}}{2(1)}=\dfrac{-3\pm\sqrt{9+4}}{2}=\dfrac{-3\pm\sqrt{13}}{2}=-\dfrac{3\pm\sqrt{13}}{2}\\\\3x^2+9x-3=3\left(x+\dfrac{3-\sqrt{13}}{2}\right)\left(x+\dfrac{3+\sqrt{13}}{2}\right)$

4 0

3 years ago

60°<br> 8<br> 30°<br> х<br> Determine the value of x.

lana [24]

Answer:

4 sqrt(3) =x

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp / hyp

sin 60 = x / 8

8 sin 60 = x

8 ( sqrt(3)/2) = x

4 sqrt(3) =x

8 0

3 years ago

Use the table of points to answer the following questions.

Bess [88]

The slope of the lines is -0.75 and 0.75 respectively. This shows that the slope of one of the<u> line is negative of the other.</u>

<h3>Slope of a line</h3>

The slope of a line is the rate of change of the y-axis of the coordinate to x-axis. The formula for calculating the slope of a line is expressed as;

Slope = y2-y1/x2-x1

Given the following coordinate point (−8, 9) to (−4, 6), the slope is calculated as;

Slope = 6-9/-4+8
Slope = -3/4

For the coordinate points (-4, 6) and (2, 1.5), the slope is calculate;

Slope = 1.5-6/2+4
Slope = -4.5/6
Slope = 0.75

Hence the slope of the coordinate point is 0.75.

Hence the slope of the lines is -0.75 and 0.75 respectively. This shows that the slope of one of the<u> line is negative of the other.</u>

Learn more on slope of a line here: brainly.com/question/3493733

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8 0

2 years ago