3 years ago

Find the length of the segment indicated. Round your answer to the nearest

Mathematics

1 answer:

Andrew [12]3 years ago

8 0

Answer:

little rusty but I think its b sorry if wrong

Step-by-step explanation:

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Which of the following equations has a solution that is negative?

Serga [27]

Answer:

-10(-h-9)=18

Step-by-step explanation:

-10(-h-9)=18

10h+90=18

10h=-72

h=-7.2

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3 years ago

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Travka [436]

Answer:

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Step-by-step explanation:

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alexira [117]

Answer: x= 0.3 or x=3/10

Step-by-step explanation:

90x=27

divide both sides by 90

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yulyashka [42]

Answer:

$\frac{ds}{dt} = 39.586 km/h$

Step-by-step explanation:

let distance between farmhouse and road is 2 km

From diagram given

p is the distance between road and past the intersection of highway

By using Pythagoras theorem

$s^2 = 2^2 +p^2$

differentiate wrt t

we get

$\frac{d}{dt} s^2 = \frac{d}{dt} (4 + p^2)$

$2s \frac{ds}{dt} =2p \frac{dp}{dt}$

$\frac{ds}{dt} = \frac{p}{s}\frac{dp}{dt}$

$\frac{ds}{dt} = \frac{p}{\sqrt{p^2 +4}} \frac{dp}{dt}$

putting p = 3.7 km

$\frac{ds}{dt} = \frac{3.7}{\sqrt{3.7^2 +4}} 45$

$\frac{ds}{dt} = 39.586 km/h$

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3 years ago

Solve for k:<br>1/3k + 1/2 = 1/4k

son4ous [18]

$\frac{1}{3}k+\frac{1}{2}=\frac{1}{4}k\ \ \ \ \ \ |\cdot12(to\ eliminate\ fractions)\\\\\frac{12}{3}k+\frac{12}{2}=\frac{12}{4}k\\\\4k+6=3k\\\\4k-3k=-6\\\\k=-6$

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3 years ago