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djverab [1.8K]
3 years ago
9

A random sample of size 25 from a normal population has the mean = 47.5 and the standard deviation s = 8.4. does this informatio

n tend to support or refuse the claim that the mean of the population is = 42.1
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0
What were your given answer choices
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What is the minimum number of x intercepts that a polynomial of degree 11 can? have?
stiks02 [169]

The degree of the polynomial will tell you the max amount of zeros you will have. 11 in this case.

However you can also have 9,7,5,3,1 (keep subtracting by 2)

So the answer is 1.
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3 years ago
Help me cuh PLEASE ..
DochEvi [55]

Answer:

I'm so sorry but I'm not really sure myself ! I hope you get or found the answer already.

Step-by-step explanation:

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Llana [10]

The legs of the triangle are 6.91 feet, 7.9 feet, and 10.5 feet.

<h3>What is a Pythagoras theorem?</h3>

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as

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The ratio of the one leg of the right triangle to the other leg of the right triangle must be 8:7.

Let x be one leg and y be another leg. Then we have

x/y = 8/7

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Then the greatest length of one leg of the right triangle given the other leg of the right triangle is 10.5 feet will be

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110.25 = x² + 49x²/64

110.25 = 113x²/64

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Then the other leg will be

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More about the Pythagoras theorem link is given below.

brainly.com/question/343682

#SPJ1

7 0
2 years ago
What is (x+3)(x-3) in standard form ?
Scilla [17]

Answer:

x² - 9

Step-by-step explanation:

   (x + 3)(x - 3)

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= x² - 3x + 3x - 9

= x² +( -3x + 3x) - 9       Associative

= x² + 0x - 9                   Addition    

= x² - 9                        

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3 years ago
A survey was given to 349 people asking whether people like dogs and/or cats. 197 said they like dogs 178 said they like cats 51
jeka57 [31]

See https://web2.0calc.com/questions/help_13403.

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3 years ago
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