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earnstyle [38]
3 years ago
9

I need answer fast please help

Mathematics
2 answers:
dangina [55]3 years ago
6 0

Answer:

\sqrt{16}

Step-by-step explanation:

The square root of 16 is the right answer

SpyIntel [72]3 years ago
6 0

Answer:

B. The square root of 16 is 4., and 4 is a whole number. A whole number is a part of the rational family.

Step-by-step explanation:

Remember: A rational number is any number that can be written into a fraction. Such as integers.

A is incorrect because 15 is not a whole numer, and it's decimals are not repeating with a pattern or terminating.

B is correct because the square root of 16, which is 4, is a whole number.

C is incorrect because 21 is not a whole numer, and it's decimals are not repeating with a pattern or terminating.

D is incorrect because 22 is not a whole numer, and it's decimals are not repeating with a pattern or terminating.

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When testing the difference between two population means and the population variances are unknown and unequal, the degrees of fr
levacccp [35]

Answer: 34 degrees of freedom should be used to find the p-value of the test .

Step-by-step explanation:

Degrees of Freedom relates to the maximum number of independent values, that have independence to vary in the sample.

Given : When testing the difference between two population means and the population variances are unknown and unequal, the degrees of freedom are calculated as 34.7.

But degree of freedom must be an integer , so we find the greatest integer less than equal to the calculated degree of freedom.

i.e. [df]=[34.7]= 34

Thus , 34 degrees of freedom should be used to find the p-value of the test .

6 0
3 years ago
Find the value of z.
AVprozaik [17]

Answer:

  z = 110°

Step-by-step explanation:

Angles z and the one marked 70° form an linear pair, hence are supplementary.

  z = 180° -70° = 110°

<h3>Angles where chords cross</h3>

The angle made by two chords is half the sum of the arcs intercepted by those chords. Here, that means ...

  70° = 1/2(60° +x)   ⇒   x = 140° -60° = 80°

The arc w completes the circle of 360°, so we have ...

  w +x +79° +60° = 360°   ⇒   w = 360° -219° = 141°

Finally, z is the average of w and 79°:

  z = (w +79°)/2 = (141° +79°)/2 = 110° . . . as above

8 0
2 years ago
WILL GIVE A BRAINLIEST PLEASE HELP!!!
kaheart [24]
A(n) = a₁.(r)ⁿ⁻¹, where a₁ = 1st term, r= common ratio and n, the rank

In the formula given a₁ = 5, r = 3/2 and n = 6 (we have to find the 6th term value).

a₆ = 5.(3/2)⁶⁻¹ = 5.(3/2)⁵ = 1215/32 (answer C)
7 0
3 years ago
Can someone help me understand this? Because I really don’t understand this at all
Otrada [13]

Answer: I believe it is A OR B

Step-by-step explanation: BECAUSE IF A⇒B AND B⇒C

THEN  ¬A⇒C  I THINK ITS A THO

OR ¬A⇒¬C

7 0
3 years ago
A mechanic earned $983.88 for42.5 hours of work. Which is the best estimate of how much the mechanic
valentina_108 [34]

Answer:

23.15 an hour

Step-by-step explanation:

5 0
2 years ago
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