Simplify -5² + 8|-1| + (-3)

Mathematics

1 answer:

Wittaler [7]3 years ago

7 0

Answer: -20

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In a state pick 4 lottery game, a bettor selects four numbers between 0 and 9 and any selected number can be used more than onc

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Answer:

See explanation below

Step-by-step explanation:

The calculations for this lottery do not involve the combinations rule because the order of the numbers does matter. For example, 1234 and 4321 are different although they have the same digits.

The calculations for this lottery do involve the permutations with replacement rule because any selected number can be used more than once.

By the fundamental rule of counting, there are 10*10*10*10 = 10,000 possible outcomes of the event with a probability 1/10,000 = 0.0001 each outcome.

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The answer is a - yes, because of the associative property

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5. A monument casts a 78 ft. shadow at the same time that a vertical yardstick casts a 4.5 ft. shadow. How high is the monument?

rodikova [14]

Hello,

Using Thalès 's theorem:

Let's h the height of the monument.

$\dfrac{1}{h} =\dfrac{4.5}{78} \\\\h=\dfrac{78}{4.5} =\dfrac{156}{9} \approx{17.3\ (ft)}$

If you don't know what is the Thalès's theorem,

imagine that the similar triangles.

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The equation of a circle whose center is at ( 4,0 ) and radius is length 2 ( square root ) 3

Vesna [10]

The equation of a circle:
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(h,k) - the coordinates of the center
r - the radius

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adoni [48]

5.4945 is the answer not rounded

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