3 years ago

2x^2+7x-15=0

1 answer:

Rudiy273 years ago

5 0

First step is to factorize the given expression as follows:
2x^2 + 7x - 15 = (2x-3)(x+5)
This means that the two roots of the equation are 3/2 (or 1.5) and -5

Now, we will get r and s:
we are given that the value of r is greater than the value of s, since 1.5 is greater than -5, therefore:
r = 1.5
s = -5

You might be interested in

The number 20 is multiplied either by 4 or by 5, then the product is increased either by 3 or by 5, and then the sum is divided

tigry1 [53]

15 I know this because my brain told me that this is the correct answer so my fingers are giving you the correct answer in return for brainliest

4 0

2 years ago

List angles in order from smallest to largest

shepuryov [24]

Answer:

∠S, ∠R, ∠T

Step-by-step explanation:

4 0

2 years ago

A regulation basketball has a diameter of about 9 in. What is the best approximation for the volume of this ball? 3050 in³ 382 i

Mandarinka [93]

The best apporximation for the volume of this ball is 382 cubic inches.

<h3>What is the volume of the ball?</h3>

The volume of the ball is calculated by the formula V = 4 / 3πr³. This formula is the same in the whole world.

Given

A regulation basketball has a diameter of about 9 in.

The radius of the ball is;

$\rm Radius = \dfrac{Diameter}{2}\\\\Radius=\dfrac{9}{2}\\\\Radius=4.5\ inches$

The volume of the ball is;

$\rm Volume =\dfrac{4}{3}\pi r^3\\\\Volume=\dfrac{4}{3} \times 3.14 \times 4.5^3\\\\Volume =\dfrac{144.53}{3}\\\\Volume = 381.51\\\\Volume = 382 \ In^3 \ apporx$