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Vsevolod [243]
3 years ago
7

HELP ME PLEASE!!!! ΔAXY ~ ΔABC. What is the value of BC

Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0

Answer:

BC = 28 \frac{1}{3} ft

Step-by-step explanation:

Given that the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{AX}{AB} = \frac{XY}{BC} , substitute values

\frac{12}{20} = \frac{17}{BC} ( cross- multiply )

12BC = 340 ( divide both sides by 12 )

BC = \frac{340}{12} = \frac{85}{3} = 28 \frac{1}{3}

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yarga [219]

Answer:

BC = 3.6

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{BC}{DE} = \frac{AC}{AE} , substitute values

\frac{BC}{1.2} = \frac{4.5}{1.5} ( cross- multiply )

1.5 BC = 5.4 ( divide both sides by 1.5 )

BC = 3.6

6 0
3 years ago
X^2 +6x+30 in vertex form
Elina [12.6K]

Answer:

Step-by-step explanation:

Factoring  x2-6x-30

The first term is,  x2  its coefficient is  1 .

The middle term is,  -6x  its coefficient is  -6 .

The last term, "the constant", is  -30

Step-1 : Multiply the coefficient of the first term by the constant   1 • -30 = -30

Step-2 : Find two factors of  -30  whose sum equals the coefficient of the middle term, which is   -6 .

     -30    +    1    =    -29

     -15    +    2    =    -13

     -10    +    3    =    -7

     -6    +    5    =    -1

     -5    +    6    =    1

     -3    +    10    =    7

     -2    +    15    =    13

     -1    +    30    =    29

7 0
3 years ago
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What’s number 12 through 15 pls I need this ASAP
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Answer:

12. 9

Step-by-step explanation:

12. Using Pythagoras theorem

let shortest distance be = x

8 square + 5 square = x square

64 + 25 = x square

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Therefore x = square root of 89

Thus X = 9

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earnstyle [38]
Its like ones true then ones false it goes in that pattern
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2 years ago
What is the center of a circle?<br> What is the radius of the circle?
lutik1710 [3]

Answer:

Center: (-9, -7)

Radius: 5

Step-by-step explanation:

6 0
3 years ago
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