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Vedmedyk [2.9K]
3 years ago
11

How many real roots does a quadratic equation have if the discriminant is 10?

Mathematics
1 answer:
balu736 [363]3 years ago
8 0
Two and they are both real numbers.

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Renting a bicycle costs $10 for the first hour and $5 for each additional hour.
Deffense [45]

Answer:

C=5h

Step-by-step explanation:

multiply the numbers of hours by 5

5 0
3 years ago
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Why is the limit to infinity of 2^n/2^n+1 = lim to infinity 1/2?
Elis [28]

Step-by-step explanation:

lim(n→∞) (2ⁿ / 2ⁿ⁺¹)

lim(n→∞) (2ⁿ / (2ⁿ × 2¹))

lim(n→∞) (1 / 2)

1/2

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3 years ago
If g(x) = (x + 2)/3, find g(-8).
alisha [4.7K]

Answer:

-2

Step-by-step explanation:

Substitute -8 in place of x and you get (-8+2)/3 or -6/3 which is -2

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Factoring trinomials 3x^3-24x^2+45x​
yarga [219]

Answer:

Option B: 3x(x - 3)(x - 5)

Step-by-step explanation:

The given polynomial is: 3x³ - 24x² + 45x

To factorize it: 3x³ - 24x² + 45x

Since, 3x is common through out we can take it out.

⇒               3x(x² - 8x + 15)

Now we have to factorize (x² - 8x + 15)

The roots of this quadratic equation is: 5, 3.

Therefore, x² - 8x + 15 = (x - 3)(x - 5)

Combining them, the factors of the polynomial would be:

(B)                                     3x(x - 3)(x - 5)

5 0
3 years ago
In a freefall skydive, a skydiver begins at an altitude of 10,000 feet. during a freefall, the skydiver drops toward earth towar
asambeis [7]

Answer:

{t|0\leq t\leq 50}

Step-by-step explanation:

We are given that

In a freefall skydive, a skydiver begins at an altitude during free fall =10,000 feet

The skydiver drops towards earth at a rate=175 ft/s

The height of the skydiver from the ground can be modeled using the function

H(t)=10000-175t

We have to find the domain of the function for this situation.

When t=0

Then ,H(0)=10,000 feet

From given graph we can see that the value of t  lies  from 0 to 50.

Therefore, the domain of the function for this situation is given by

{t|0\leq t\leq 50}

7 0
3 years ago
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