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Zarrin [17]
3 years ago
11

Set up a proportion to solve for x in the following similar triangles,

Mathematics
1 answer:
fredd [130]3 years ago
6 0

Answer:

x = 14

Step-by-step explanation:

Since the triangles are similar then corresponding sides are in proportion, that is

\frac{15}{x-4} = \frac{12}{8} ( cross- multiply )

12(x - 4) = 120 ( divide both sides by 12 )

x - 4 = 10 ( add 4 to both sides )

x = 14

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X² + 2x - 3 = 0
tankabanditka [31]

Step-by-step explanation:

x²+2x-3=0

(x²+3x)-(x-3)=0

x(x+3)-1(x+3)=0

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6 0
2 years ago
What is the area of a circle with a diameter of 12.6 in.?
Zepler [3.9K]

Hey there! I'm happy to help!

To find the area of a circle, you square the radius and then multiply by pi (3.14 in our case).

The radius is half of the diameter.

12.6/2=6.3

We square this.

6.3²=39.69

We multiply by 3.14

39.69×3.14=124.6266

We round to the nearest hundredth, giving us an area of 124.63 in².

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5 0
3 years ago
What is 1.323 as a percent
My name is Ann [436]
1.323 as a percent is 132.3% because you take the decimal and move it two spaces to the right->
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3 years ago
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Furkat [3]

Answer:

Alex is 2 1/4 inches longer than Maddy

Step-by-step explanation:

Alex is longer than Maddy

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