All categories

3 years ago

For which discriminant is the graph possible?

Mathematics

1 answer:

Alenkinab [10]3 years ago

5 0

Hey user☺☺

Option a is correct

Because the graph has only one solution.

As the graph touches the x-axis at one point that means that it will have only one solution for x. But we know that a quadratic equation has two solutions. So the graph will have two equal solution amd therefore the discriminant will be 0.

Hope this will help☺☺

You might be interested in

I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!!!

Alex Ar [27]

Step-by-step explanation:

You want to set one of the equations equal to either x or y. For this, I put x+y=-2 equal to y which would be y=-x-2. Then you plug this in to the other equation for y. This would give you 5x+2(-x-2)=2. When you factor the two into the parenthesis, combine like terms, and keep the x values on ones side and the other numbers on the other side, you get 3x=6

8 0

3 years ago

What is 5.48 million is scientific notation

yanalaym [24]

Answer:

5.48x10~6

Step-by-step explanation:

Apex

8 0

4 years ago

Suppose the population of a town was 40,000 on January 1, 2010 and was 50,000 on January 1, 2015. Let P(t) be the population of

Lorico [155]

Answer:

Given,

The initial population ( on 2010 ) = 40,000,

Let r be the rate of increasing population per year,

Thus, the function that shows the population after t years,

$P(x)=40000(1+r)^t$

And, the population after 5 years ( on 2015 ) is,

$P(5)=40000(1+r)^{5}$

According to the question,

P(5) = 50,000,

$\implies 40000(1+r)^5=50000$

$(1+r)^5=\frac{50000}{40000}=1.25$

$r + 1= 1.04563955259$

$\implies r = 0.04653955259\approx 0.04654$

So, the population is increasing the with rate of 0.04654,

And, the population after t years would be,

$P(t)=40000(1+0.04654)^t$

$\implies 40000(1.04654)^t$

Since, the exponential function is,

$f(x) = ab^x$

Hence, by comparing,

a = 40000,

b = 1.04654

6 0

4 years ago

Andrew is looking into prices for cable for his new home. He received the following breakdown for monthly prices.

GuDViN [60]

Given:

551.88 + 341.64b

The coefficient of "B" is 341.64, the best statement that applies to it is:

D. It is the cost for one cable box with DVR and HD service for one year.

Cable boxes: $ 3.49 per cable box
HD Service: $ 9.99 per cable box
DVR: $ 14.99 per cable box
Total : $ 28.47
multiply 12 months
Annual cost $341.64

8 0

3 years ago

The amount $180.00 is what percent greater than $135.00

horsena [70]

33.33% is the answer.

7 0

4 years ago