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3 years ago

15

√200 in consecutive integers and in simplified form

1 answer:

myrzilka [38]3 years ago

4 0

√200 = √2·100 = √2 · √100 = 10√2

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What is the value of the expression –c + d when c = 12.7 and d = –4.4?

viktelen [127]

-c + d

First, substitute -12.7 in for -c, and -4.4 in for d. / Your problem should look like: -12.7 + -4.4
Second, simplify. / Your problem should look like: -12.7 - 4.4
Third, simplify. / Your problem should look like: -17.1

Answer: -17.1 (A)

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4 years ago

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3 years ago

Simplest form of 7/9 x 21/10

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An elliptical culvert is 3.5 feet tall and 6 feet wide. It is filled with water to a depth of 0.95 feet. Find the width of the s

maks197457 [2]

Answer:

$W_s \approx5.3$

Step-by-step explanation:

From the question we are told that

Height $H=3.5ft$

Weight $W= 6ft$

Depth $D=0.95ft$

Generally the equation for ellipses is given as

$\frac{x^2}{a^2} +\frac{y^2}{b^2} =1$

Where

$b=H/2\\b=3.5/2\\Therefore\\b=1.75\\a=W/2\\a=6/2\\Therefore\\a=3\\$

$\frac{x^2}{3^2} +\frac{y^2}{1.75^2} =1$

Generally to find y in the equation $\frac{x^2}{a^2} +\frac{y^2}{b^2} =1$

$y=-b+d$

$y=-1.75+0.95$

$y=-0.8$

Therefore

$\frac{x^2}{3^2} +\frac{(0.8)^2}{1.75^2} =1$

$\frac{x^2}{3^2} =1-\frac{(0.8)^2}{1.75^2}$

$\frac{x^2}{3^2} =1-0.2089795918$

$X^2 =3^2(1-0.2089795918)$

$X^2 =7.119183674$

$X =\sqrt{7.119183674}$

$X =2.66817984$

Therefore the width of the given stream is

$W_s=2.66817984*2$

$W_s=5.33635968$

$W_s \approx5.3$

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