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2 years ago

Work out angle bxc. give a reason for each angle you work out

Mathematics

1 answer:

Rus_ich [418]2 years ago

7 0

Answer:

∠ BXC = 70°

Step-by-step explanation:

∠ XBC and ∠ AXY are corresponding angles and are congruent, then

∠ XBC = 55°

Since XB = XC , then Δ XBC is isosceles and the 2 base angles are congruent.

∠ BXC = 180° - (55 + 55)° ← angle sum of triangle

∠ BXC = 180° - 110° = 70°

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WILL GIVE BRAINLIEST!

Nataly [62]

Answer:

The equation the circle is given by

${\bf 4x}^{\bf 2}+{\bf 4y}^{\bf 2}-{\bf 8x+0y-60}={\bf 0}$

Step-by-step explanation:

The general form of the circle is

$x^2+y^2+Dx+Ey+F=0\hfill (1)$

Given points are (5,0) , (0,4) and (2,4)

Let the points (5,0) , (0,4) and (2,4) be (x_1,y_1) , (x_2,y_2) and (x_3,y_3) respectively

The equation of the circle passes through given points (5,0) , (0,4) and (2,4)

Substituting the point (5,0) in (1)

$(-5)^2+(0)^2+D(5)+E(0)+F=0$

$25-5D+F=0$

$5D-F=25\hfill (2)$

Substituting the point (0,4) in

$(0)^2+(4)^2+D(0)+E(4)+F=0$

$16+4E+F=0$

$4E+F=-16\hfill (3)$

Substituting the point (2,4) in

$(2)^2+(4)^2+D(2)+E(4)+F=0$

$4+16+2D+4E+F=0$

$2D+4E+F=-20\hfill (4)$

By solving the equations (2) ,(3) and(4) we get the values of D,E and F as below

$D=-2$ , $E=0$ and $F=-15$

substituting the values of D,E and F in (1) we get

$x^2+y^2-2x+(0)y-15=0$

Now multiplying the above equation into 4 we get

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6 0

3 years ago

Ill give you brainliest if you answer fast and correctly

spayn [35]

Answer:

the answer is 64.29% or just 64

the fraction form is 2/3

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

write an equation of a line passing thru the point (-4,-11) and perpendicular to the line 4x+5y= -45

GrogVix [38]

Answer:

y = 5/4x - 6

Step-by-step explanation:

First, put 4x + 5y= -45 in y = mx + b form

4x + 5y= -45

5y = -4x - 45

y = -4/5x - 9

So, the slope is -4/5. Perpendicular lines have a opposite reciprocal slope, so the line's slope will be 5/4

To find the equation of the perpendicular line, plug in the slope and given point into y = mx + b, and solve for b

y = mx + b

-11 = 5/4(-4) + b

-11 = -5 + b

-6 = b

Plug in b and the slope into y = mx + b

y = 5/4x - 6

So, the equation is y = 5/4x - 6

3 0

3 years ago

Given the points (3,5) (2, 4) (9, 0) and (?,6). What could replace the ? to create

irina1246 [14]

Answer:

A. 3

Step-by-step explanation:

In a function, the inputs do not repeat.

The inputs are assigned to exactly one output for each.

Three is one of the options. Three is already an input in the given function.

Replacing the ? with 3 would create the non-function.

(3,5) (2, 4) (9, 0) (3,6)

Option A should be the correct answer.

Hope this helps.

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3 years ago

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Minchanka [31]

IOS share with you and your family

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3 years ago