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Rufina [12.5K]
3 years ago
13

I need heeelllppp please

Mathematics
2 answers:
barxatty [35]3 years ago
5 0

\frac{ { - 5}^{2}  +  {10}^{2} }{(2 \times ( - 5) \times 3) +  {3}^{3} } =  \frac{ - 25 + 100}{ - 30 + 27}   =  \\  =  \frac{75}{ - 3}  =  - 25

Morgarella [4.7K]3 years ago
3 0

Answer:

125/-3

Step-by-step explanation:

\frac{ -  {5}^{2}  +  {10}^{2} }{(2 \times ( - 5) \times 3) +  {3}^{3} }  \\  =  \frac{25 + 100}{ - 30 + 27}  \\  =  \frac{125}{ - 3}

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The Atlanta Braves baseball team has a mean batting average of 250 with a standard deviation of 20. Assume the batting averages
nignag [31]

Answer:

68 %

Step-by-step explanation:

Since we have our mean x = 250 and standard deviation σ = 20, we need to find how many standard deviations away the values 230 and 270 are.

Note x - σ = 250 - 20 = 230 and x + σ = 250 + 20 = 270

The values are one standard deviation away.

So, the values between 230 and 270 lie in the range x - σ to x + σ.

Since the batting averages are approximately normally distributed and for a normal distribution, 68 % of the values lie in the range x - σ to x + σ.

So, 68 % of Braves players fall between 230 and 270.

7 0
3 years ago
Can someone please help me with this one?
vazorg [7]

3 = 2 by z property

Step-by-step explanation:

Congruence criteria for triangles

If two sides and the angle between them in one triangle have the same measures as two sides and the angle between them in another triangle, then the triangles are congruent.

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4 0
3 years ago
If Julie needs 3 1/4 cups of oatmeal, how many 1/4 cups of oatmeal will she use?
Gwar [14]
The answer is thirteen
1 cup=4 one fourths
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Add one more one fourth
6 0
3 years ago
Read 2 more answers
Help me with this question please and thank you!!! :):)
kirill [66]

Answer:

A intersection B = ( elements which are common in both)

= ( 2,4,7,19)

A union B = ( all the elements which are either in A or in B).

= ( 2, 4, 7 , 13, 14, 19, 20 , 3, 5, 6, 10,11, 12 , 15,17 , 18 , 19 )

3 0
2 years ago
Angela and you are painting a room. Angela has 2 1/2 gallons of blue paint and Ryou has half as much white paint. It will take 2
GREYUIT [131]
Conversion from gallons to quarts

1 gallon = 4 quarts

Now,

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Ryou has 1/2 of what Angela has = 1/2*10 = 5 quarts of white paint.

Each wall requires 2 \frac{3}{4} of paint.
After coloring;
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White colored walls = (5)/(2 \frac{3}{4}) = 1 wall with 9/11 quarts of paint remaining
6 0
3 years ago
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