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Lunna [17]
3 years ago
11

Plz help Find ‘x’ & ‘y’

Mathematics
1 answer:
just olya [345]3 years ago
3 0

Answer:

x=20. y=15

Step-by-step explanation:

in similar triangles the sides are all in proportion. this means:

\frac{25}{5}  =  \frac{x}{4}  =  \frac{y}{3}

\frac{25}{5}  = 5

so:

\frac{x}{4}  = 5

x=5×4

x=20

and...

\frac{y}{3}  = 5

y=3×5

y=15

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Answer:

(832.156, \ 847.844)

Step-by-step explanation:

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a). 98% confidence interval

$\overline x \pm t_{(n-1, \alpha /2)}. \frac{s}{\sqrt{n}}$

$E= t_{( n-1, \alpha/2 )} \frac{s}{\sqrt n}}

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(832.156, \ 847.844)

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3 years ago
1. A machine shop has eight screw machines but only three spaces available in the production area for the machine. In how many d
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Answer:

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Step-by-step explanation:

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Since the parts are randomly selected and there is no distinct pattern therefore combinations is used to solve this.

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Step-by-step explanation:

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