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ExtremeBDS [4]
3 years ago
12

Can someone help me with this please please please I want to pass math. ​

Mathematics
2 answers:
Sav [38]3 years ago
8 0

Answer:

x = 8

Step-by-step explanation:

∠VUD + ∠WUV = 180°    {Straight line}

86 + ∠WUV = 180

∠WUV = 180 - 86

∠WUV = 94°

Sum of all angles of triangle = 180°

∠VUW + ∠UWV + ∠WVU = 180

94 + x + 8 + 9x - 2 = 180

10x + 100 = 180

10x = 180 - 100

10x = 80

x = 80/10

x = 8

postnew [5]3 years ago
3 0

Answer:

Step-by-step explanation:

First you have to find what x equals

To do that find all the angles inside triangle VWU

We can find angle  U by subtracting 180- 86

= 94

SO now add up the variables from inside the triangle

x + 8 + 94 + 9x - 2 = 180

Add up like terms

10x + 100 = 180

Isolate 10x

10x + 100-100 = 180-100

10x = 80

Divide 10 in each side

x= 8

We already know the x so just put it in the angle

9(8) - 2

72 - 2

=70

To make sure it is correct find all the angles and add them all together to make sure it adds up to 180

70 + 94 + (8+8)

=180

So angle W = 70

So angle V = 16

So angle U = 94

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6 0
3 years ago
What is the value of the expression? <br> 2(-5.25)
Alexus [3.1K]

Answer:

-10.5

Step-by-step explanation:

2 x (-5.25) = -10.5

6 0
3 years ago
Complete the square to put () in vertex form. () = 3<br> 2 + 30 − 12. What is the vertex?
gulaghasi [49]

Answer:

A and A

the equation of a parabola in vertex form is

y = a(x - h)² + k

where ( h, k ) are the coordinates of the vertex and a is a multiplier

y = - 2(x + 3)² + 2  is in this form

with vertex = ( - 3, 2)

To find the y-intercept let x = 0

y = - 2(3)² + 2 = - 18 + 2 = - 16

Similarly

y = - 2(x + 2)² + 2 is in vertex form

vertex = ( - 2 , 2)

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hope this helped

8 0
2 years ago
Which point is collinear with points a and d
Art [367]
B. (6, -8)

First, you need to figure out the slope of the line

(y1 - y2) / (x1 - x2)

After substituting points D(-3, 4) A(3, -4)

[4 - (-4)] / (-3 - 3)
(8) / (-6)

The slope of the line is -8/6 or -4/3 simplified

Then you can put it in point slope form:

(y - y1) = m(x - x1)

(y - y1) = -4/3(x - x1)

The point that I am using for point slope form is A(3, -4)

[y - (-4)] = -4/3(x - 3)
y + 4 = -4/3(x - 3)

Next you have to simplify the equation so that y is isolated

y + 4 = -4/3(x - 3)

First distribute the -4/3

y + 4 = -4/3(x) + (-4/3)(-3)
y + 4 = -4/3x + 4

Subtract 4 on both sides
y + 4 - 4 = -4/3x + 4 - 4
y = -4/3x

Now that you have y = -4/3x, you can substitute the values until one of them makes the equation equal

For example) (6, -8)
-8 = -4/3(6)
-8 = -8

So since (6, -8) fits in the slope intercept equation, it must me collinear with points A and D

~~hope this helps~~

6 0
3 years ago
Which rectangular equation is equivalent to the polar equation r csc theta=8?
Drupady [299]
Rectangular and polar forms are two forms of equations that translates to plot. In this case, the two forms are convertible to each other by the expressions:

r sin theta = y
r cos theta = x
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we are given the polar expression r csc theta = 8 and is asked to convert to rectangular form.

in this case, csc theta is equal to 1/ sin theta. thys
 r / sin theta = 8

in order to make use of the equations above, then

we multiply r to both numerator and denominator in the left side, that is 
r^2 / r sin theta = 8 
x2+y2 / y = 8
x  2 + y2 = 8y
3 0
3 years ago
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