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Alex17521 [72]
2 years ago
9

Good afternoon guys...

Mathematics
2 answers:
Crazy boy [7]2 years ago
5 0

The reciprocal of 0 is 1/0

We know that it's impossible to divide by 0.

The numbers 2/2 and 1/1 .. are their own reciprocals.

The reciprocal of -5 is 1/5.

2. Rational numbers:

2/4, 3/5, 3/7, 4/2, 4/3

-3/3, -3/4, 1/2, 1/4, 1/7.

A rational number is a fraction. Something my Acellus Algebra I teacher told me:

Rational numbers are fractional.

32^2=32*32=1,024

46^2=46*46=2,116

Square root:

\sqrt{2304}

48

\sqrt{529}

23

Hope it helps!

yarga [219]2 years ago
3 0

Step-by-step explanation:

Blue brackets denote answers

All the best

hope it helps

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If p = .8 and n = 50, then we can conclude that the sampling distribution of pˆ is approximately a normal distribution
FrozenT [24]

Answer:

Yes we can conclude.

Step-by-step explanation:

The sampling distribution of \hat{p} can be approximated as a Normal Distribution only if:

np and nq are both equal to or greater than 10. i.e.

  • np ≥ 10
  • nq ≥ 10

Both of these conditions must be met in order to approximate the sampling distribution of \hat{p} as Normal Distribution.

From the given data:

n = 50

p = 0.80

q = 1 - p = 1 - 0.80 = 0.20

np = 50(0.80) = 40

nq = 50(0.20) = 10

This  means the conditions that np and nq must be equal to or greater than 10 is being satisfied. So, we can conclude that the sampling distribution of pˆ is approximately a normal distribution

6 0
3 years ago
Given: ⅓ (18x + 27) = 81 Prove: x = 12
sasho [114]

Answer:

Firstly, rewrite the equation:

⅓ (18 + 27) = 81

Substitute x for the given number of it's supposed equivalent.

In this case x = 12.

⅓ (18(12) + 27) = 81

Solve using PEMDAS and simplify what is in the parenthesis first. Then, multiply.

(18 x 12) + 27 = 243

Now, solving using PEMDAS, multiply the total of what you got that was originally in the parenthesis by ⅓ .

⅓ (243) = 81

When you multiple these number they are equivalent to 81.

81 = 81

Since the equation given, when substituted x for 12, is equivalent to 81, this proves that substituting x for 12 makes this equation true.

4 0
3 years ago
Given a triangle with: a =<br> 150, A = 75°, and C = 30°<br> Using the law of sines gives: c = 0
koban [17]

Answer:

c = 77.6

Step-by-step explanation:

You may have entered the measure of a side as the measure of an angle.

\dfrac{\sin A}{a} = \dfrac{\sin C}{c}

\dfrac{\sin 75^\circ}{150} = \dfrac{\sin 30^\circ}{c}

c\sin 75^\circ = 150 \sin 30^\circ

c = \dfrac{150 \sin 30^\circ}{\sin 75^\circ}

c = 77.6

You are correct. Good job!

5 0
3 years ago
Explain your work !!!!<br> What is 17^3<br><br> A. 20<br> B. 4913<br> C. 51<br> D. 306
Travka [436]

A number raised to an exponent is that number multiplied by itself that number of times.

17^3 = 17 x 17 x 17 = 4913

The answer is B.

4 0
2 years ago
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Simplify the expression. 25^1/2 + 81^1/4
Vanyuwa [196]

Answer:

32.75

Step-by-step explanation:

4 0
3 years ago
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