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inysia [295]
4 years ago
11

G 1) a2 + 3a – 40 = 0 . solving quadratic equations

Mathematics
1 answer:
QveST [7]4 years ago
5 0

Answer:

The solution set is {-8, 5}.

Step-by-step explanation:

a^2 + 3a – 40 = 0 .

We need 2 numbers whose product is  -40 and whose sum is +3.

They would be + 8 and - 5, so we have the factors:

(a + 8)(a - 5) = 0

Now either a + 8 = 0 or a - 5 = 0, so:

a = -8 or 5.

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Kisachek [45]
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4 years ago
Can any one here please help me in this math problem I really need help
MArishka [77]

Answer:

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For the cylinder, diameter = d = 4 cm

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V = 6 cm * 6 cm * 15 cm - (pi)(2 cm)^2(15 cm)

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3 years ago
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4 years ago
In your last 24 basketball games, you attempted 93 free throws and made 69. Find the experimental probability that you make a fr
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Answer:

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