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3 years ago

F(x)=4x 2 +2x+6 How many distinct real number zeros does f have?

Mathematics

2 answers:

hoa [83]3 years ago

6 0

Answer:

It has 0 distinct real number zeros. The function does not touch the x-axis

Ierofanga [76]3 years ago

4 0

Answer:

NO real zeros for this quadratic function.

Step-by-step explanation:

We can answer this questions looking at the discriminant ( $b^2-4ac$ ) associated with this quadratic function: $f(x) =4x^2+2x+6$

Discriminant is: $b^2-4ac=(2)^2-4(4)(6)=4-96=-92$

Since we get a negative answer, this means that there are NO real solutions to this quadratic function (No real zeros). The zeros are complex numbers.

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My grade is a 77%, if i get a 0% on a paper worth 30% of my grade, what will my grade be now??

blsea [12.9K]

$Grade=Paper+Other$
$Grade=(Grade_{paper}\times Value_{paper})+(Grade_{other}\times Value_{other})$
$Grade=(0 \times 30\%)+(77\% \times (1-30\%))$
$Grade=(0 \times 30\%)+(77\% \times 70\%)$
$Grade=0+53.9\%$
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6 0

3 years ago

What set of numbers are all factors of 18

kifflom [539]

Answer:

2,3,9

Step-by-step explanation:

factors are the smallest numbers that can divide 18completely

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3 years ago

In order to estimate the average time spent on the computer terminals per student at a local university, data were collected fro

VladimirAG [237]

Answer:

Margin of error for a 95% of confidence intervals is 0.261

Step-by-step explanation:

Step1:-

Sample n = 81 business students over a one-week period.

Given the population standard deviation is 1.2 hours

Confidence level of significance = 0.95

Zₐ = 1.96

Margin of error (M.E) = $\frac{Z_{\alpha }S.D }{\sqrt{n} }$

Given n=81 , σ =1.2 and Zₐ = 1.96

Step2:-

 $Margin of error (M.E) = \frac{Z_{\alpha }S.D }{\sqrt{n} }$ 

 $Margin of error (M.E) = \frac{1.96(1.2) }{\sqrt{81} }$ 

On calculating , we get

Margin of error = 0.261

Conclusion:-

Margin of error for a 95% of confidence intervals is 0.261

4 0

3 years ago

Solve the inequality 11d - 9 < 15d + 3

Yanka [14]

$11d - 9 < 15d + 3\\
-4d-3$

8 0

3 years ago

calcula el área lateral de un prisma cuya base es un pentagono de 10cm de arista, 16.88 cm de apotema y 15 cm de altura

Romashka-Z-Leto [24]

Answer:

Lateral surface area of pentagonal prism = 750 cm²

Step-by-step explanation:

Given information:

Height of pentagonal prism = 15 cm

Length of edge = 10 cm

Length of apothem = 16.8 cm

Find:

Lateral surface area of pentagonal prism

Computation:

Lateral surface area of pentagonal prism = 5(a)(h)

Lateral surface area of pentagonal prism = 5(10)(15)

Lateral surface area of pentagonal prism = 750 cm²

5 0

2 years ago