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Anon25 [30]
4 years ago
13

How do I find BCD? Please help

Mathematics
2 answers:
Pavel [41]4 years ago
8 0
All you need to do is add the angles up and you have your answer
Jobisdone [24]4 years ago
7 0
Hi,
BCD and ECF are opposite angles and so are equal. If they are equal, then their equations are equal, and if their equations are equal, you can set the equations against each other to find x. See below, and hope this helps!

(10x - 20)° = (8x + 4)°

This is basic algebra. (I'm taking off the degree sign for now to make it simpler, but be sure to add it to your answer at the end.) Group like terms.

10x - 20 = 8x + 4
2x = -16
x = -8

Once you've found "x", plug "x" into the equation for BCD and solve. I'll get you started:

(10 × -8) - 20
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line j is perpendicular to lines m and n. if the products of the slope of all three lines is -8, what is the slope of line j?
jeka94

Answer:

the slope of line j is -1/8, the slope of lines m and n are both 8.

Explanation step by step:

Suppose j is the slope of line j, m the slope of line m and n the slope of line n. Since:

1. line j is perpendicular of line m, so j*m= -1

2. J is perpendicular of line n, so  j*n=-1

3. m and n and parallel so m=n

As we want to know the slope of j we clear the equations presented to us in order to find it.

(1) m* n* j = -8, since n=m we have  n^{2}* j = -8.

we clear j; n^{2} * j = -8 \\ j =\frac{-8}{n^{2} }

replacing in the equation n*j = -1 we get

n*(-8/n^2) = -1. Thus n = 8. Since j = -1/n = -1/8.

7 0
3 years ago
Jasmine thinks that the images are the same because they are both isosceles triangles. Do you agree with Jasmine why or why not?
lorasvet [3.4K]

Answer:

No, images are not same as  their dimensions are different although two sides in each of the two triangles are equal.

Step-by-step explanation:

Given: images of two isosceles triangles.

To check: if images are the same

Solution:

A triangle is a polygon made up of three sides.

An isosceles triangle is a triangle in which two sides are equal. Also, in an isosceles triangle, angles opposite to equal sides are equal.

The given images of two isosceles triangles A and B are not the same as their dimensions are different although two sides in each of the two triangles are equal.

6 0
4 years ago
WRITE THESE ANSWERS IN SLOPE-INTERCEPT FORM! <br> 1. slope = 4 y-intercept = -5
Katen [24]

Answer:  y = 0.833333333333x + 3.16666666667

Step-by-step explanation:  i think i might have did it wrong not completly sure

6 0
3 years ago
I need help guys with this including steps ..
svp [43]

Answer:

1. When adding you just add the numbers from the same space so

3  7

10 45

2. Same as adding but the opposite

2  1  2

3  1  6

1  2  1

 

Step-by-step explanation:

7 0
3 years ago
Factor the expression. 49x^2-16
goblinko [34]

Answer:

The answer is :

A. (7x + 4)(7x - 4)

3 0
3 years ago
Read 2 more answers
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