HelloWorldofMath HelloWorldofMath

24-01-2022
Mathematics

contestada

one of the roots of the equation 2x^2-bx-20=0 is -2.5. find the other root

Respuesta :

mathistrash1963 mathistrash1963

25-01-2022

Answer:

Here is an actual answer.

(2x + z)(x + 2.5).

Step-by-step explanation:

In general, a quadratic equation in standard form is: ax2 + bx + c and other stuff I forget.Therefore, from 2x2 - bx -20, we obtain: (2x + z)(x + 2.5).

Answer Link

Otras preguntas

Which of the following are solutions to the equation below? Check all that apply. x2 + 4x + 4 = 12 A. x= -22/3 - 2 O B. X = -V2+12 O c. X= V2 +12 O D. x = 213-2

Part A.Maggie is making a necklace using 14 inch string and identical beads. Maggie has placed 12 beads next to each other starting at the left end of the strin

If the wavelength is 6 meters and the period is 2 seconds, what's the wave velocity?

What can the reader infer from the following statement? ""so he finally broke. so even dally has a breaking point.""

Give (in order) the correct coefficients to balance the following reaction: h2sncl6 + h2s → sns2 + hcl

Why Tibetans don't like the Chinese government's control of religious life?

What does the restaurant look like,according to the writers? -empty -Beautiful -Not pretty

construct a dichotomous key which can be used to identify the five antelopes shown in figure 1.1 use only visible features.

What is the main similarity between "the wife-woman" and frost’s poem "mending wall"? both use humorous language. both use iambic pentameter. both use blank ver

In what respect is a mycelium and a fruiting body similar?