All categories

2 years ago

Find the value of x. Give reasons to justify your solution-

Mathematics

2 answers:

weqwewe [10]2 years ago

6 0

Answer:

x =27

Step-by-step explanation:

from Z angls rule the agle (BDE) =72

and total angl on D =180

so, 2x +2x+72=180

4x = 180 -72

4x = 108 (divied both sides by 4)

x= 27

Troyanec [42]2 years ago

5 0

Answer:

I think x=27°

Step-by-step explanation:

Hope this helps!

You might be interested in

PLEASE SOMEONE HELP ME ON THIS ! 30 points

Mrrafil [7]

Equaton of a circle that is centerd at (h,k) and radius r is

(x-h)²+(y-k)²=r²

center is (-4,9) and radius is 11

(x-(-4))²+(y-9)²=11^2
(x+4)²+(y-9)²=121

4 0

3 years ago

Bea is building a 1:120 scale model of a museum building. Her model has a rectangular base that is 3 feet wide and 2 feet long.

kondaur [170]

The answer going to be 16

8 0

3 years ago

HURRY I NEED HELP SOON

Scrat [10]

Answer:

7.5h+10=6.25(h+3)

Step-by-step explanation:

...........................................................

6 0

3 years ago

MATH HELP

elena-s [515]

The equation of line perpendicular to given line is:

$y = \frac{2}{3}x-1$

Step-by-step explanation:

Given equation is:

$3x+2y = -8$

First of all, we have to find the slope of the given line

So,

$3x+2y = -8\\2y = -3x-8\\$

Dividing both sides by 2

$\frac{2y}{2} = \frac{-3x-8}{2}\\y = \frac{-3x}{2} - \frac{8}{2}\\y =-\frac{3}{2}x-4$

As the equation is in slope-intercept form, the co-efficient of x will be the slope of the line

$m_1 = -\frac{3}{2}$

As we know that product of slopes of two perpendicular lines is -1

Let m-2 be the slope of line perpendicular to given line

$m_1.m_2 = -1\\-\frac{3}{2} . m_2 = -1\\m_2 = -1 * -\frac{2}{3}\\m_2 = \frac{2}{3}$

Slope-intercept form is:

$y = m_2x+b$

putting the value of the slope

$y = \frac{2}{3}x+b$

Putting the point (3,1) in the equation

$1 = \frac{2}{3}(3) +b\\1 = 2 + b\\b = 1-2\\b = -1$

Putting the value of b

$y = \frac{2}{3}x-1$

Hence,

The equation of line perpendicular to given line is:

$y = \frac{2}{3}x-1$

Keywords: Slope-intercept form, slope

Learn more about equation of line at:

#LearnwithBrainly

8 0

3 years ago

Match the reasons with the statements in the proof.

scoray [572]

Given: a | | b, m 2 = m 3
Prove: m 1 = m 3

1. a || b, m∠2 = m∠3
Given

2. m∠1 = m∠2
If lines are ||, corresponding angles are equal.

3. m∠1 = m∠3
Substitution

4 0

3 years ago

Read 2 more answers