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2 years ago

11

What is the co-efficient of ab in the equation

ormula1" title="(2a - 5b) ^{2} " alt="(2a - 5b) ^{2} " align="absmiddle" class="latex-formula">

1 answer:

frez [133]2 years ago

7 0

Answer:

ans:-20

or, (2a-5b)^2

or, 4a^2 -2*2a*5b+25b^2

or, 4a^2-20ab+25b^2

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tatuchka [14]

Answer:

3

Step-by-step explanation:

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The slope of the line would be 3.

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In order to find an average, you have to add all the numbers and divide by the number of things you added.

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Afina-wow [57]

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An observer, whose eyes are 1.98 m above the ground, is standing 39.2 m away from a tree. The ground is level, and the tree is g

lozanna [386]

Answer:

The tree is 16.25 m tall.

Step-by-step explanation:

Attached is a diagram that better explains the problem.

From the diagram we see that the distance between the top of the tree and the line of sight of the observer is x.

To find the height of the tree, we need to first find x and then add it to the height of the observers line of sight from the ground.

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