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lidiya [134]
3 years ago
6

B) Find the value of 2a2 + 5b2 when a = -6 and b = 2​

Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0

Answer:

-4

Step-by-step explanation:

2a2+5a2

2(-6)2=-24

5(2)2=20

-24+20=-4

DedPeter [7]3 years ago
4 0

Answer: -4

Step-by-step explanation:

(2x-6×2)(5×2×2)

-24+20

-4

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8 0
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A company is to hire two employees. They have prepared a final list of eight candidates, all of whom are equally qualified. Of t
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Answer:

i) Probability that both candidates employed are women = 5/14

ii) Probability that the second candidate is a woman = 5/8

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Let the probability that a man is employed be P(M) = 3/8

Probability that a woman is employed P(W) = 5/8

a) Probability that both candidates employed are women = (5/8) × (4/7) = 5/14

b) Probability that the second candidate is a woman = (probability that first candidate is a man and second candidate is a woman) + (probability that first candidate is a woman & second candidate is a woman)

= (3/8)(5/7) + (5/8)(4/7) = (15/56) + (20/56) = 35/56 = 5/8

c) Probability that the first candidate is a woman given that second one is a woman

Given that the second candidate was a women, means that the first candidate-women was selected among other four women.

Probability = (4/8)/(5/8) = 4/5

7 0
3 years ago
A nutrional label states that there are 36 grams of carbs in each serving. This accounts for 12% of a daily value. how many gram
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Answer:

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Hope I helped :)

Step-by-step explanation:

3 0
3 years ago
What is the ratio of 140:160
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Step-by-step explanation:

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