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Arlecino [84]
3 years ago
8

BC= AC= m When it’s a 45-45-90 triangle

Mathematics
1 answer:
Katena32 [7]3 years ago
3 0

Answer:

BC = 6

AC = square root of 72 or 8.485...

angle A = 45

Step-by-step explanation:

BC = BA

AC^2 = BA^2 + BC^2

angle A = 180-(90+45)

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5 0
3 years ago
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Gulf gully and jump rope road are a pretty far distance.If the scale for the map is 0.5 inches=2.3 miles,what is the actual dist
Nezavi [6.7K]

Answer:

12 cm = 21.62 miles

6 cm = 11.04 miles

Step-by-step explanation:

To find the distance, set up a proportion. A proportion is two equal ratios set equal to each other. We form the ratios by using corresponding values. We write a ratio of \frac{map}{real world} and simplify.

We know \frac{map}{real world}=\frac{0.5in}{2.3 miles}. We know the distance on the map is 12 cm and 6 cm whish converts to 4.7 inches and 2.4 inches. We can write \frac{4.7in}{xmiles} and  \frac{2.4in}{xmiles}

We set them equal.

\frac{0.5}{2.3}=\frac{4.7}{x}

and

\frac{0.5}{2.3}=\frac{2.4}{x}

To solve each proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

2.3(4.7)=0.5(x)\\10.81=0.5x\\\frac{10.81}{0.5}=\frac{0.5x}{0.5} \\21.62 miles=x

and

2.3(2.4)=0.5(x)\\5.52=0.5x\\\frac{5.52}{0.5}=\frac{0.5x}{0.5} \\11.04 miles=x

8 0
3 years ago
Please help I promise it is easy <br><br> algebra 1
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Answer:

y=1/x-1/5

Step-by-step explanation:

tell me if u have more questions

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What’s is the constant of proportionality in the equation y=5/4x
marshall27 [118]
5/4 is the constant of proportionality
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3 years ago
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