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nordsb [41]
3 years ago
9

Please I need help

Mathematics
1 answer:
pantera1 [17]3 years ago
4 0

Answer:

d

Step-by-step explanation:

d

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Choose the property of addition that justifies the equation<br><br> 9+2=2+9
Alenkasestr [34]

Answer:

Communitive Property

Step-by-step explanation:

Communitive property is when you switch up numbers when you multiply and add but it's still the same.

4 0
3 years ago
Three rats in a lab are injected a type of medicine. The independent probabilities for each rat exhibiting side effects are 0.5,
EleoNora [17]

Step-by-step explanation:

There are four possible values of X: 0 rats show side effects, 1 rat shows side effects, 2 rats show side effects, or all 3 rats show side effects.

Probability X = 0:

P = (1 − 0.5) (1 − 0.4) (1 − 0.3)

P = 0.21

Probability X = 1:

P = (0.5) (1 − 0.4) (1 − 0.3) + (1 − 0.5) (0.4) (1 − 0.3) + (1 − 0.5) (1 − 0.4) (0.3)

P = 0.44

Probability X = 2:

P = (0.5) (0.4) (1 − 0.3) + (0.5) (1 − 0.4) (0.3) + (1 − 0.5) (0.4) (0.3)

P = 0.29

Probability X = 3:

P = (0.5) (0.4) (0.3)

P = 0.06

7 0
3 years ago
What are the angles in degreees
ra1l [238]

Answer: A is 70 B is 45 and C is 50

Step-by-step explanation:

7 0
2 years ago
I need help with this question ​
m_a_m_a [10]

Welcome to Gboard clipboard, any text you copy will be saved here.

6 0
3 years ago
I need help in this qs :0
n200080 [17]

Answer:3x+6=2x+21 base angle of isosceles triangle

3x-2x=21-6

X=15

<J=3×15+6=51

<k=2×15+21=51

,<I=180-51-51=78

Step-by-step explanation:

7 0
3 years ago
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