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3 years ago

Simplify: - 5 1/4 - ( - 7 1/2)

Mathematics

1 answer:

RoseWind [281]3 years ago

5 0

Answer:

91/4 simplified = 22 3/4

work:

subtract find answer then simplify :)

Hope this helps

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which expression have a value of 16/81? check all that apply. (2/3)^4, (16/3)^4, (4/81)^2, and (4/9)^2

notka56 [123]

$Use\ \left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\\left(\dfrac{2}{3}\right)^4=\dfrac{2^4}{3^4}=\dfrac{16}{81}\ :)\\\\\left(\dfrac{16}{3}\right)^4=\dfrac{16^4}{3^4}=\dfrac{16^4}{81}\neq\dfrac{16}{81}\ :(\\\\\left(\dfrac{4}{81}\right)^2=\dfrac{4^2}{81^2}=\dfrac{16}{81^2}\neq\dfrac{16}{81}\ :(\\\\\left(\dfrac{4}{9}\right)^2=\dfrac{4^2}{9^2}=\dfrac{16}{81}\ :)$

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4 years ago

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butalik [34]

The median is 4.

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3 years ago

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Describe lengths of three segments that could not be used to form a triangle

Tanya [424]

I don't understand, but, two form a triangle your two SHORTEST sides have to equal LARGER than your LONGEST side. Example: 2,3,4
The two shortest sides are 2 and 3. 2+3=5 Is the sum greater than the largest side,4,? Yes, therefore it makes a triangle.

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3 years ago

The table shows the relationship between the number of Calories Tai burns while biking and the number of minutes he bikes. Minut

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6 calories

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4 years ago

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9. Courtney rolled a number cube 76 times. The number two appeared 24

gulaghasi [49]

Answer:

$\frac{6}{19}$

Step-by-step explanation:

Experimental probability is based on what has happened already.

Theoretical probability is what should happen.

Example, a coin has 2 sides:

head or tail

The theoretical probability of flipping a head in a flip is:

1/2

But say, an experiment had a coin flipped 10 times and it came 6 heads and 4 tails, the probability of head would then be:

6/10 = 3/5

A bit different than the theoretical one because it is the experimental probability.

Now, back to our question -----

76 times rolled (76 trials total)

2 appeared "24" times (24)

<u>P(rolling a two) = 24/76 = 6/19</u>

THis is the experimental probability of the experiment of 76 trials.

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3 years ago