3 years ago

What are the zeros of the quadratic function f(x)=8x^2-16x-15

Mathematics

1 answer:

Marina86 [1]3 years ago

8 0

$(4 + \sqrt{46} ) \div 4$
$(4 - \sqrt{46} ) \div 4$

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The yearly amounts of carbon emissions from cars in Belgium are normally distributed with a mean of 13.9 gigagrams per year and

lbvjy [14]

Answer: 0.052

Step-by-step explanation:

Given : The yearly amounts of carbon emissions from cars in Belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 9.2 gigagrams per year.

i.e. $\mu=13.9$ and $\sigma=9.2$

Let x denotes the yearly amounts of carbon emissions from cars in Belgium.

Then, the probability that the amount of carbon emissions from cars in Belgium for a randomly selected year are between 12.8 gigagrams and 14.0 gigagrams per year will be :-

$P(12.8$

Hence, the required probability = 0.052

8 0

3 years ago

What does 9 minus x squared equals?

natta225 [31]

9 - x^2
= 3^2 - x^2
= (3+x)(3-x)

3 0

3 years ago

Which is not an equation of the line that passes through the points (1, 1) and (5, 5)?

goblinko [34]

Answer:

Step-by-step explanation:

(5-1)/(5-1)= 4/4= 1

y - 1 = x - 1

y = x

y - x = 0

the second equation is not

7 0

3 years ago

Which expression is equivalent to 7(a+2) when a= 6?<br> O 7(6)<br> O 9(6)<br> O 7(6)+2<br> O 7(6)+14

storchak [24]

7(6+2) = 7(8)=56

The answer is:

7(6)=42 + 14=56

4 0

3 years ago

9 + 4 to the third power x (20-8) / 2 + 6

harkovskaia [24]

1110.5 is the answer and your welcome

5 0

3 years ago