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Vikki [24]
2 years ago
8

0 113 / 205 Marks Find the mean of the following numbers: 7 21 2 17 3 13 7 4 9 7 9 ​

Mathematics
2 answers:
ANEK [815]2 years ago
3 0

Answer:

9

Step-by-step explanation:

7+21+2+17+3+13+7+4+9+7+9=99

there are 11 numbers so you should 99 divided by 11

so answer is 9

8_murik_8 [283]2 years ago
3 0

Answer:

Mean = 9

Step-by-step explanation:

Mean = Sum of given values/ No. of given values

Sum = 2+3+4+7+7+7+9+9+13+17+21

= 99

n = 11

Mean = 99/ 11

= 9

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Round to the nearest tenth.
laila [671]

Answer:

8.2 units

Step-by-step explanation:

Given that the only information for our triangle are 2 sides and 1 angle, we must use the Law of Cosines to find side BC

<u />

<u>Recall the Law of Cosines</u>

<u />a^2=b^2+c^2-2bc\cdot cos(A)

<u>Identify angles and sides</u>

<u />m\angle A=23^\circ\\a=BC=?\\b=AC=14\\c=AB=6

<u>Solve for side "a"</u>

<u />a^2=b^2+c^2-2bc\cdot cos(A)\\\\a^2=14^2+6^2-2(14)(6)\cdot cos(23^\circ)\\\\a^2=196+36-168cos(23^\circ)\\\\a^2=222-168cos(23^\circ)\\\\a=\sqrt{222-168cos(23^\circ)}\\ \\a\approx8.2

Therefore, the length of line segment BC is about 8.2 units

8 0
2 years ago
Can anyone answer these?????
Arlecino [84]
22's answer is because they're alternate
8 0
3 years ago
Any help please for my class
sesenic [268]

Answer:

Step-by-step explanation:

do 700/20

700/20 = $35 each

hope this helps <3

4 0
3 years ago
Read 2 more answers
Perry bought one package of strawberries for $3. How many packages of strawberries can Mei buy if she has $9?
evablogger [386]

Answer:

3 packs

Step-by-step explanation:

1 pack = $3

To see how many she could buy divide the money she has by how much each pack costs

9/3 = 3

$3 for each pack is the same as

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7 0
2 years ago
What is P(A), the probability that the six-sides die is an even number ?
maw [93]

Answer:

50/50

Step-by-step explanation:

6/3=2=1/2=50/50

5 0
2 years ago
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