What is the slope of (0,-8) and (-4,9)
2 answers:
Answer:
Step-by-step explanation:
We are asked to find the slope of (0, -8) and (-4, 9). We use the following formula to calculate slope.
In this formula, (x₁, y₁) and (x₂, y₂) are the points given. We have the points (0, -8) and (-4,9). If we match the given value with the corresponding variable we see that:
- x₁= 0
- y₁= -8
- x₂ = -4
- y₂= 9
Substitute the values into the formula.
Solve the numerator. Remember that 2 back to back negative signs become a positive sign.
- (9)- (-8)= 9--8 = 9+8 = 17
Solve the denominator.
- (-4)- (0) = -4-0= -4
This fraction cannot be reduced, so -17/4 is the slope.
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Answer:
A) attached below
B) 0.61
C) 0.47
Step-by-step explanation:
Given data:
Total number of lizards infected = 38
Of the 15 species B lizards 40% survived
For specie C one more survived than died
Out of the 24 lizards that died 1/3 were species A
<u>A) contingency table </u>
attached below
<u>B) Determine the proportion of these lizards in this study that were either specie A or Specie B </u>
P ( A or B ) = ( 8 + 15 ) / 38 = 0.605 ≈ 0.61
<u>C) determine the probability that specie C lizard did not study </u>
P ( not surviving | C ) = 7 / 15 = 0.466 ≈ 0.47
Answer:
Step-by-step explanation:
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Answer:
Step-by-step explanation:
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I hope this helps!