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3 years ago

Pls help I really don’t get it

Mathematics

2 answers:

drek231 [11]3 years ago

7 0

Answer:

x = 9

Step-by-step explanation:

$\triangle ABC\sim \triangle ADE.... (given)$

$\therefore \frac{AB}{AD} = \frac{BC}{DE}.... (csst)$

$\therefore \frac{28}{20} = \frac{2x+3}{15}$

$\therefore \frac{7}{5} = \frac{2x+3}{15}$

$5(2x+3) = 7\times 15$

$10x+15 = 105$

$10x = 105-15$

$10x = 90$

$x = \frac {90}{10}$

$x = 9$

DiKsa [7]3 years ago

4 0

Answer:

Step-by-step explanation:

hope u understand sorry for bad photo

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2 years ago

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3 years ago

The time between arrivals of taxis at a busy intersection is exponentially distributed with a mean of 10 minutes. (a) What is th

Sindrei [870]

Answer:

a) 0.0025

b) 0.9975

c) 23.03 minutes

d) 23.03 minutes

Step-by-step explanation:

Let X be the random variable that measures the time waited for a taxi.

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3 years ago

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