2 years ago

Define what congruent means?

Mathematics

1 answer:

kati45 [8]2 years ago

5 0

Answer:

identical in form or shape

Step-by-step explanation:

two triangles could be congruent as they both have 3 sides.

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The sun shines at a 30° angle to the ground. To the nearest inch, how long is the shadow cast by a 72-in. tall fence post?

tensa zangetsu [6.8K]

The length of the shadow is 124.7 in

Explanation:

Given:

Angle, θ = 30°

Height of the fence, h = 72 in

Length of the shadow, l = ?

Given:

tan 30° = $\frac{perpendicular}{base} = \frac{height of the fence}{length of the shadow}$

$\frac{1}{\sqrt{3} } = \frac{72}{l} \\\\l = 72\sqrt{3} \\\\l = 124.7 in$

Therefore, the length of the shadow is 124.7 in

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2 years ago

The price of a pair of jeans was $60 after a 50% markup. What was the price of the jeans before the markup?

zhenek [66]

Answer:

Step-by-step explanation:

We have an original price p

We mark them up by 50%

p + p*50%

Changing to decimal form

p+.50p = 1.5p

The new price is 60 dollars

1.5p = 60

Divide each side by 1.5

1.5p/1.5 = 60/1.5

p =40

The original price is 40

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2 years ago

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Rewrite 25 as an exponent.

devlian [24]

Answer: 25 as a exponent is $25^1$ .

Step-by-step Explanation: To write a exponent, you figure out the main number and how many times the main number is repeating.

Ex: 91x91x91x91x91x91x91

Main number: 91

Repeating how many times: 7

Final answer: $91^7$

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2 years ago

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URGENT DUE IN 20 MINUTES FOR GRADE PLEASE HELP 2/3 (x-7)= -2

ASHA 777 [7]

2/3 (x-7)= -2
x - 7 = -2 * 3/2
x - 7 = -3
x = -3 + 7
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3 years ago

(4.27x108) (9.2x10-5)

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What are the answer choices??

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