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shtirl [24]
2 years ago
13

4 - -9

Mathematics
1 answer:
Svetradugi [14.3K]2 years ago
3 0

Answer:

13

Step-by-step explanation:

a negative plus a negative makes a positive

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-1/2 + 2/3 ????????????????????????????????
Free_Kalibri [48]

Answer:

2/6 or simpler 1/3

Step-by-step explanation:

6 0
3 years ago
BC and DF are parallel lines. B is a point on AD and E is a point of DF. BD=BE. work out angle DBE give a reason. ITS ON MATHSWA
zloy xaker [14]

Answer:

(Angle DBE) ∠DBE = 50°

Step-by-step explanation:

It is crucial for us to be able to interpret plane geometry related question in order to solve them efficiently.

From the question given; we have analysed and come up with a diagrammatic expression and mathematical solution that clearly explains the question .

Given that

BC and DF are parallel lines.

B is a point on AD  

B is a point on AD

BD=BE

work out angle DBE and give a reason.

The diagram can be seen in the attached image below.

SInce ∠BD = ∠DE

Then triangle BDE is an isosceles triangle. In an isosceles triangle ; two sides are equal in length.

The sum of angles in an isosceles triangle = 180° (sum of angles in a triangle)

So;

∠BDE + ∠BED + ∠DBE = 180° (sum of angles in a triangle)

From the diagram; we will see that ∠ABC = ∠BDE  (corresponding angle)

Since ; ∠ABC is not given and which is needed to solve this question.

Let's just assume that ∠ABC is 65° , the main thing is to be able to interpret and understand the concept of the question.

Now;

Since

∠ABC = ∠BDE  

∠ABC  = 65°

∠BDE  = 65°

Again;

∠BDE + ∠BED + ∠DBE = 180° (sum of angles in a triangle)

∠BDE will be aso equal to  ∠BED ; this is because since the length of the opposite sides of the isosceles triangle are equal, their angles will also be equal.

Therefore;

65° + 65° + ∠DBE = 180° (sum of angles in a triangle)

130 ° + ∠DBE = 180° (sum of angles in a triangle)

∠DBE = 180° - 130°

∠DBE = 50°

3 0
3 years ago
Complete the statement of congruence for the triangles.
Hoochie [10]

If you are proving a congruence of triangles then you need to match the corresponding parts to the triangle you are proving congruent.

BAC would then be congruent to MJR because of the corresponding angles

B is the same angle as M

A is the same angle as J

C is the same angle as R

3 0
3 years ago
A,B,C,D what’s the correct answer
zzz [600]
Answer:

C. 16



Explanation:

You find 4/6 of 24

4/6 x 24 = 96

Then you divide 96 by 6

96/6 = 16

You can check your work by doing 16 x 6
7 0
3 years ago
Read 2 more answers
If the point is reflected across the y-axis, what is the location of the new point? A) (2, 5) B) (2, −5) C) (−2, 5) D) (−2, −5)
OLEGan [10]

Answer:

the anstwer is  (−2, 5

Step-by-step explanation:

The formula for the y-axis is -x,y so the X have to change for example if the coordinates were 4,5 the reflection of the y-axis will be -4,5

7 0
3 years ago
Read 2 more answers
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