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Lyrx [107]
2 years ago
14

3.9 + x = -8 what is x

Mathematics
2 answers:
jarptica [38.1K]2 years ago
7 0

Answer:

x=-11.9

Step-by-step explanation:

madam [21]2 years ago
5 0

Answer:

x= -11.9

Step-by-step explanation:

3.9+x=-8

-3.9       -3.9

x= -11.9

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Someone please help!! find the value of y in this triangle
Ksenya-84 [330]

Answer:

30

Step-by-step explanation:

Triangle containing 120° and y° is an isosceles triangle.

Therefore,

y° + 120° + y° = 180°

2y° = 180° - 120°

2y° = 60°

y° = 60°/2

y ° = 30°

y = 30

4 0
3 years ago
The Quality Control Department employs five technicians during the day shift. Listed below is the number of times each technicia
sveta [45]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data :

Technician __Shutdown

Taylor, T___4

Rousche, R _ 3

Hurley, H__ 3

Huang, Hu___2

Gupta, ___ 5

The Numbe of samples of 2 possible from the 5 technicians :

We use combination :

nCr = n! ÷ (n-r)!r!

5C2 = 5!(3!)2!

5C2 = (5*4)/2 = 10

POSSIBLE COMBINATIONS :

TR, TH, THu, TG, RH, RHu, RG , HHu, HG, HuG

Sample means :

TR = (4+3)/2 = 3.5

TH = (4+3)/2 = 3.5

THu = (4+2) = 6/2 = 3

TG = (4 + 5) = 9/2 = 4.5

RH = (3+3) = 6/2 = 3

RHu = (3+2) /2 = 2.5

RG = (3 + 5) = 8/2 = 4

HHu = (3+2) = 2.5

HG = (3+5) = 8/2 = 4

HuG = (2+5) / 2 = 3.5

Mean of sample mean (3.5+3.5+3+4.5+3+2.5+4+2.5+4+3.5) / 10 = 3.4

Population mean :

(4 + 3 + 3 + 2 + 5) / 5 = 17 /5 = 3.4

Population Mean and mean of sample means are the same.

This distribution should be approximately normal.

7 0
3 years ago
32 small bags of soil are needed to fill three clay pots how many small bags of soil should be purchased to fill 8 clay pots
lapo4ka [179]

Answer:

12

i think

Step-by-step explanation:

4 0
3 years ago
When Liz woke up in the morning, it was 6°F. By the late afternoon, the temperature had dropped 9°F.
Reil [10]

Answer:

-3°F

Step-by-step explanation:

6 - 9 =  -3°F

4 0
2 years ago
Guys, I need help:
natima [27]

Answer:

5 times is the answer

7 0
2 years ago
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