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tresset_1 [31]
2 years ago
11

I really need help with this!! I’ll give brainliest to who ever answers!!

Mathematics
1 answer:
Serhud [2]2 years ago
5 0

Answer:

a. triangle DEF's lines are all 3 times more than triangle ABC

b. triangle DEF's lines are all 3 times more than triangle ABC

c. 2.5 times 2 = 5

I hope u can elaborate a bit more :)

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What is the proportion in the first question?
Igoryamba

If two triangles are similar, the correspondant sides are in proportion. So, the proportion is

15\div 10 = 18 \div 12 = x \div 6

4 0
3 years ago
9)
garri49 [273]

Answer:

tetrahedral

Step-by-step explanation:

According to the valence shell electron pair repulsion theory (VSEPR) the shape of a molecule is dependent on the number of electron pairs on the valence shell of the central atom in the molecule.

The predicted electron pair geometry may sometimes differ from the molecular geometry due to the presence of lone pairs and multiple bonds.

If we consider each nitrogen atom in N2 independently, we will notice that each nitrogen atom has four regions of electron density. Hence the electron pair geometry is tetrahedral.

3 0
3 years ago
Find the equation of the tangent to the circle x2 + y2 = 109 at point (-10,3)
konstantin123 [22]

Answer:

10x - 3y = -109 .

Step-by-step explanation:

x^2 + y^2 = 109

Implicit Differentiation:

2x + 2y.y' = 0

y' = -2x/2y = -x/y

So at the point (-10,3) the gradient of the tangent is -(-10)/3 = 10/3.

Equation of the tangent:

y - y1 = m(x - x1)

y - 3 = 10/3(x + 10)

y - 3 = 10/3 x + 100/3

3y - 9 = 10x + 100

-109 + 3y = 10x

10x - 3y = -109  

4 0
2 years ago
Find the value of x​
Lubov Fominskaja [6]

Answer:

thanks<em> </em><em> </em><em>4</em><em>5</em>

Step-by-step explanation:

$$56-5($4+448

edeu

udyeu

rijdhxhchxjjxjsjduu73627

7 0
2 years ago
??? Need help please
elena55 [62]
Slope is -3
Explanation
Take points
(4,3) and (6,-3)
-3-(3)
———= -6/2 which equals -3
6-4
7 0
2 years ago
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