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Fed [463]
3 years ago
14

Helpppp explainn how to solve it

Mathematics
1 answer:
denpristay [2]3 years ago
8 0

1. x=35, y=18

2. x=20, y=23.3

Step-by-step explanation:

1.

when two triangles are similar, the ratio of their corresponding sides is equal and is called the scale factor.Given that;

ΔJKL ∼ ΔNML then

JK/NM =KL/ML

40/16=x/14

x=(40*14)/16 =35

Applying same ratio to find y;

LJ/LN=JK/NM

45/y=40/16

y⇒(45*16)/40 =18

2.

Given that ΔDEF∼ ΔHJG then;

HJ/DE=JG/EF

15/9=y/14

y=(15*14)/9

y=23.3

Applying the same ratio in finding value of x;

HJ/DE=GH/FD

15/9=x/12

x=(15*12)/9 =20

Learn More

Ratio of sides of similar triangles:brainly.com/question/11717086

Keywords: similar, triangle, ratio, value

#LearnwithBrainly

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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A sequence is defined by the formula f(n+1)=f(n)-3. If f(4)=22, what is f(1)?
Vlad [161]
<h3>Answer: Choice C) 31</h3>

==============================================

Explanation:

The recursive rule

f(n+1)=f(n)-3

can be rearranged to

f(n) = f(n+1)+3

after adding 3 to both sides

----------------

Now let's say we plug in n = 3

f(n) = f(n+1)+3

f(3) = f(3+1)+3

f(3) = f(4)+3

f(3) = 22+3

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Repeat for n = 2

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f(2) = 25+3

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