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3 years ago

PLEASE HELP ASAP GEOMETRY 20 PTS REAL ANSWERS ONLY

Mathematics

1 answer:

kodGreya [7K]3 years ago

7 0

Answer:

Step-by-step explanation:

Use the Law of Cosines to find the measure of angle A from the lengths of the sides.

A = arccos[(b²+c²-a²)/(2bc)] ≅ 29.9°

B = arccos[(a²+c²-b²)/(2ac)] ≅ 54.8°

C = 180 - A - B = 95.3°

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Which TWO linear equations represent perpendicular lines?

BabaBlast [244]

Step-by-step explanation:

$y = \frac{1}{2} x + 4$

and,

$y = - 2x - 3$

represents perpendicular lines.

Two lines are perpendicular when product of their slopes = -1

In, y =½x+4

m1 = ½

In y = -2x -3

m2 = -2

Now, m1× m2 = ½× (-2) = -1

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3 years ago

Who can finish this for me

Paladinen [302]

Answer:

Step-by-step explanation:

$(5 - 5 {x}^{4} - {x}^{3} ) - (6 {x}^{3} - 4 {x}^{4} - 3)$

Remove unnecessary parentheses

$5 - 5 {x}^{4} - {x}^{3} - (6 {x}^{3} - 4 {x}^{4} - 3)$

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Collect like terms

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$5 + 3 - {x}^{4} - 7 {x}^{3}$

Add the numbers

$8 - {x}^{4} - 7 {x}^{3}$

Use the commutative property to reorder the terms

$- {x}^{4} - 7 {x}^{3} + 8$

Hope this helps...

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4 years ago

Set up and solve an equation to find x.

riadik2000 [5.3K]

I would say the equation would be 3x=x+20 and subtract x on both sides and you get 2x=20 so then you would divide both sides by 2 and the answer is 10.

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3 years ago

Solve for y.<br><br> 62=y−58.8<br><br> Enter your answer in the box. <br><br> y =

julia-pushkina [17]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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