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3 years ago

Use the discriminant to decide how many solutions the given equation will have. Show all work for credit. 6x^2-2x=3

Mathematics

1 answer:

Rufina [12.5K]3 years ago

7 0

Answer:

two real, unequal roots.

Step-by-step explanation:

I will assume that you meant 6x^2 - 2x = 3, which is equivalent to

6x^2 - 2x - 3 = 0. The coefficients are a = 6, b = -2 and c = -3.

The discriminant is b^2 - 4ac, which here is

(-2)^2 - 4(6)(-3) = 4 + 72 = 76

Because the discriminant is + we can conclude that the given equation has two real, unequal roots.

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Answer:

The graph that has the points (2,4) and (4,8) should be the answer.

Step-by-step explanation:

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3 years ago

If f(x) = 6(9)^x then f(1/2) =?

Oksi-84 [34.3K]

F(x) = 6(9)^x

f(1/2) = 6(9)^(1/2)

f(1/2) = 6(9)^(0.5)

f(1/2) = 6*(9^0.5) 9^0.5 = √9 = +3 or -3.

f(1/2) = 6*3 = 18 or 6*-3 = -18

f(1/2) = 18 or -18

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3 years ago

A rectangular site measures 125 feet (frontage) by 256 feet (depth), of which 26 feet is in the public right of way. what is the

alexandr1967 [171]

Answer:

32,000 square feet gross area and 28,750 square feet net area

Step-by-step explanation:

Given a rectangular site measures 125 feet (frontage) by 256 feet (depth), of which 26 feet is in the public right of way. We have to find the the gross and net site area.

As, 26 feet width is in the public right of way which excluded in the net area but included in gross area.

For gross area,

Length=125 feet

Width=256 feet

$Area=Length\times width=125\times 256=32000 square feet$

For net area,

Length=125 feet

Width=256-26=230 feet

$Area=Length\times width=125\times 230=28750 square feet$

Hence, last option is correct.

The answer is: 32,000 square feet gross area and 28,750 square feet net area

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