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Degger [83]
3 years ago
6

Find z if X=27, μ=20, and α=3.4. Round to the nearest hundredth if necessary.

Mathematics
1 answer:
Scrat [10]3 years ago
7 0

Answer:

A. Z=2.06

Step-by-step explanation:

We want to find the Z-score of X=27 if the population mean is \mu=20,and the population standard deviation is \sigma=3.4.

We use the formula:

Z=\frac{X-\mu}{\sigma}

We substitute the values to obtain:

Z=\frac{27-20}{3.4}

Z=\frac{7}{3.4}

Z=2.06

The correct answer is A.

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Help me with this please​
Eduardwww [97]

Answer:

A baseball diamond is a square with sides of 90 feet. What is the distance to the nearest tenth of a foot between home and second base?

Step-by-step explanation:

127.3 feet This problem requires the use of pythagoras theorem. Ignore the face that it's a baseball diamond. All you're concerned with is that you have a square that's 90 feet per side and you want to know what the length of the diagonal. So you have a right triangle with 2 sides of 90 feet each and you want to know the length of the hypotenuse. The formula is C^2 = A^2 + B^2 Both A and B are 90, so plugging them into the formula gives C^2 = 90^2 + 90^2 = 8100 + 8100 = 16200 So C^2 = 16200 Take the square root of both sides C = 127.2792 Round to the nearest tenth, giving C = 127.3

6 0
2 years ago
What is the power of 3⁰?
antoniya [11.8K]

ANSWER

1

EXPLANATION

We want to find the value of:

3^0

One of the rules of Indices, called the Power with Exponent Zero rule, states that any number raised to the power of zero is equal to 1.

This means that:

3^0\text{ = 1}

That is the answer.

7 0
1 year ago
Twenty-four percent of the 25 swim team members are new on the team. How many members are new?
mrs_skeptik [129]
Change 25% to a decimal
0.25x25=6.25
so around 6 members r new
7 0
3 years ago
Read 2 more answers
Plz help me with this
Delicious77 [7]

<em>Answer:</em>

<em>63°</em>

<em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>ABCD parallelogram => ∡A = ∡C</em>

<em>13x - 41 = 6x + 15</em>

<em>13x - 6x = 15 + 41</em>

<em>7x = 56</em>

<em>x = 56 : 7</em>

<em>x = 8</em>

<em>∡C = 6×8 + 15 = 48 + 15 = 63°</em>

<em>Good luck !</em>

6 0
4 years ago
Does 5(20-8)=17 the problem says which statement is true
stich3 [128]
This is false because 20-8 is 12 and 12 times 5 isnt 17
5 0
3 years ago
Read 2 more answers
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