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ExtremeBDS [4]
3 years ago
14

I need to know the m.a.dof 15,17,23,19

Mathematics
2 answers:
Kisachek [45]3 years ago
8 0
If your looking for the mean the correct answer will be 18.5
grigory [225]3 years ago
3 0
The correct answer is 2.5

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Zinaida [17]

Answer:

<em><u>Hi</u></em><em><u> </u></em><em><u>you</u></em>

Hope that will help you

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6 0
3 years ago
Given: tangent A = negative StartRoot 15 EndRoot What is the value of Tangent (A minus StartFraction pi over 4 EndFraction)?
marshall27 [118]

Answer:

( √15 + 8)/7

Step-by-step explanation:

TanA = -√15

.we are to find tan(A-π/4).

In trigonometry

Tan(A-B) = TanA - TanB/1+ tanAtanB

Hence:

tan(A-π/4) = TanA - Tanπ/4/1+ tanAtanπ/4

Substitute tan A value into the formula

tan(A-π/4) = -√15-tanπ/4 / 1+(-√15)(tanπ/4

tan(A-π/4) = -√15-1/1-√15

Rationalize

-√15-1/1-√15 × 1+√15/1+√15

= -√15-√225-1-√15/(1-√225)

= -2√15-15-1/1-15

= -2√15 -16/(-14)

= -2(√15+8)/-14

= √15 + 8/7

Hence the required value is ( √15 + 8)/7

4 0
3 years ago
Read 2 more answers
An urn contains eight blue balls and seven yellow balls. if six balls are selected randomly without being​ replaced, what is the
Vlad1618 [11]

to be sure that 2 of them will be blue i have to select 7+2=9 balls
7+8=15 balls in the urn
P=9/15

to be sure that 4 of them will be yellow i have to select 8+4=12 balls
P=12/15


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Answer:

b

Step-by-step explanation:

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I need help asap please​
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140 degrees !!!!!.?.?.?)273)!343;(43
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3 years ago
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