2 years ago

3) ml - 6x — 7 and 22 - 4x + 7. Find x.

Mathematics

1 answer:

Setler [38]2 years ago

4 0

X = 7 for the question in the picture

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Why is the HCF x*2 ? Please explain thanks for number d

erma4kov [3.2K]

Answer:

x² is HCF (Height common factor)

Step-by-step explanation:

Given:

x² , x³

Find:

HCF (Height common factor)

Computation:

HCF (Height common factor) is uused to find Height common factor from the given numbers.

x² , x³

Takling x² as common

x² (1 , x)

So,

x² is HCF (Height common factor)

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2 years ago

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Answer: 234

Step-by-step explanation: 78 * 3 = 210 + 24 = 234

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An electric pole is 10m high if it's shadow is 10×√3 in length find the elevation ofthe sum

lianna [129]

First, Look at the attached picture as a reference.

Now, using Pythagoras theorem,

$AC^2=AB^2+BC^2 \\\\AC=\sqrt{AB^2+BC^2 }\\\\AC=\sqrt{10^2+(10\sqrt3)^2}\\\\ AC = \sqrt{100+300}\\\\AC=\sqrt{400}\\\\AC=20~in.$

Now, lets find the elevation of the sun.

<span> </span> $tan\theta = \frac{AB}{BC} \\\\ tan\theta = \frac{10}{10\sqrt3} \\\\ \theta = tan^{-1} \left(\frac{10}{10\sqrt3}\right) \\\\ \boxed{\theta = 30 \°}$

∴ The elevation of the sun is 30°

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2 years ago