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3 years ago

Find the difference between 24 1/8 minus 6 3/4

Mathematics

2 answers:

ANEK [815]3 years ago

6 0

Answer:

the correct answer is 17 3/8 hope this helped! <3

Step-by-step explanation:

MrMuchimi3 years ago

3 0

17 3/8 is the answer

Step-by-step explanation:

(24*8+1)- (6*4+3)

193/8-27/4

(193-27*2)/8

17 3/8

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Excel's __________ function can be used to calculate a p-value for a hypothesis test when σ is unknown. a. RAND b. T.DIST c. NOR

alisha [4.7K]

Answer:

b. T.DIST

Step-by-step explanation:

Previous concepts

The t distribution (Student’s t-distribution) is a "probability distribution that is used to estimate population parameters when the sample size is small (n<30) or when the population variance is unknown".

The shape of the t distribution is determined by its degrees of freedom and when the degrees of freedom increase the t distirbution becomes a normal distribution approximately.

The degrees of freedom represent "the number of independent observations in a set of data. For example if we estimate a mean score from a single sample, the number of independent observations would be equal to the sample size minus one."

Solution to the problem

a. RAND

False, since this function is to generate a random number between 0 and 1. And is not used to calculate p values

b. T.DIST

Correct, since th population deviation is unknown and if we find the degrees of freedom we can calculate the p value with this function.

c. NORM.S.DIST

False, because this is in order to calculate the p value when the population deviation is given $\sigma$

d. Not enough information is given to answer this question.

False we have enough info to conclude this.

6 0

4 years ago

Read 2 more answers

X^2+y^2=25 find the distance of point (x,y) from origin

storchak [24]

Answer:

Step-by-step explanation:

The radius is 5.

All I do was think of the center-radius form a circle

(x-h)^2+(y-k)^2=r^2

x^2 + y^2 =25

(x-0)^2+(y-0)^2=5^2

The center is (0,0) and the radius is 5.

So a point on the circle (x,y) has a distance of 5 from the center

and the center's case here is (0,0).

3 0

3 years ago

Triangle MNO is an equilateral triangle with sides measuring 16 StartRoot 3 EndRoot units. Triangle M N O is an equilateral tria

Lesechka [4]

Answer:

The correct option is second one i.e 24 units.

Therefore the height of the triangle is

$NR=24\ units$

Step-by-step explanation:

Given:

An equilateral triangle has all sides equal.

ΔMNO is an Equilateral Triangle with sides measuring,

$NM = MO = ON =16\sqrt{3}$

NR is perpendicular bisector to MO such that

$MR=RO=\dfrac{MO}{2}=\dfrac{16\sqrt{3}}{2}=8\sqrt{3}$ .NR ⊥ Bisector.

To Find:

Height of the triangle = NR = ?

Solution :

Now we have a right angled triangle NRM at ∠R =90°,

So by applying Pythagoras theorem we get

$(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}$

Substituting the values we get

$(MN)^{2} = (MR)^{2}+(NR)^{2}\\\\(16\sqrt{3})^{2}=(8\sqrt{3})^{2}+(NR)^{2}\\\\(NR)^{2}=768-192=576\\Square\ rooting\ we\ get\\NR=\sqrt{576}=24\ units$