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Mice21 [21]
3 years ago
15

The diagram shows a right-angled triangle.

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
8 0

Answer:

Step-by-step explanation:

Ac²= AB²+ BC²

Ac²= 4²+15²= 16+225

Square both side

Ac = √241= 15.52cm

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What is the answer to 522 divided by 9
Nastasia [14]
522/9 = 58

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3 years ago
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Find the length of each hypotenuse such that KMN = LMN
Mrac [35]
If triangle KMN is congruent with triangle LMN, then:
1) KM must be congruent with LM→KM=LM→
x+2y=3x-y→x+2y-x-2y=3x-y-x-2y→0=2x-3y→2x-3y=0   (1)

2) KN must be congruent with LN→KN=LN→
5x+3y=8x-7→5x+3y-5x-3y+7=8x-7-5x-3y+7→7=3x-3y→3x-3y=7  (1)

We have a system of two equations and two unkowns:
(1) 2x-3y=0
(2) 3x-3y=7

Subtracting equation (1) from equation (2)
(3x-3y)-(2x-3y)=7-0
3x-3y-2x+3y=7
x=7

Replacing x=7 in equation (1)
(1) 2x-3y=0→2(7)-3y=0→14-3y=0→
14-3y+3y=0+3y→14=3y→14/3=3y/3→14/3=y→y=14/3

The length of the hypotenuse is:
KN=5x+3y=5(7)+3(14/3)=35+14→KN=49
or
LN=8x-7=8(7)-7=56-7→LN=49

Answer: Option C. 49


7 0
3 years ago
Hi i need help as soon as possible
scoundrel [369]

Answer:

The answer is 3

Step-by-step explanation:

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T is equal to -1.
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According to Descartes rule what is a possible number of positive and negative roots
Over [174]

Answer:

sepalacola

Step-by-step explanation:

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