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3 years ago

The graph illistrates a reflection of QPR. what line is QPR reflected across to create Q'P'R

Mathematics

1 answer:

andriy [413]3 years ago

7 0

It’s reflected across the origin. Or to the right across the y axis. Then down across the x axis

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2 years ago

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eduard

Answer:

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Step-by-step explanation:

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2 years ago

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fenix001 [56]

The third answer is correct

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2 years ago

Enter the number that goes beneath the radical symbol

Lunna [17]

Answer:

185

Step-by-step explanation:

It seems like you're using the Pythagorean theorem, which would mean that b is equal to $\sqrt{11^2 -8^2}$ , which is equal to $\sqrt{185}$ . The number beneath the radical symbol is <u><em>185</em></u>.

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2 years ago

a guy wire for a tree is 20 ft long, making a 21 angle with the ground. How far is the base of the tree from a stake anchoring t

evablogger [386]

Answer:

18.7 feet far

Step-by-step explanation:

Based on the information given we can conclude that our set up will be a Right triangle (i.e. one angle is 90°), where the hypotenuse will be denoted by the guy wire of $20ft$ and angle of 21° is the angle formed between then hypotenuse and the base (i.e. ground).

Thus we want to find the base length (lets call it $x$ ) of this triangle, so we can use trigonometry as we have one angle and the hypotenuse, as follow:

$cos(21)=\frac{adjacent side}{hypotenuse}=\frac{baselength}{guywire}\\\\ cos(21)=\frac{x}{20} \\x=20cos(21)\\x=18.671\\x=18.7ft$

So the base is approximately 18.7 feet far from the tree of the anchored wire.

8 0

3 years ago