Vista Math Help

Introduction to vista math help:

Tutorvista is one of the online tutoring services providers; Tutorvista provides helps in various subjects like English, math, and science.  Tutor vista helps at any time around the clock regardless of place where they are located.  Student can learn and do homework from their home at any time. Here tutor to explain step by step so that the students can easily understand much easier. In this article we shall discuss tutorvista help in math problems.


Tutorvista math help example problem


Example 1:

Sum the polynomial  5x4 – 6x2 + 9x + 5 and 5x + 6x3 – 3x2 – 1.

Solution:

Use the associative property and distributive properties add real numbers

(5x4 – 6x2 + 9x + 5) + (6x3 – 3x2 + 5x – 1) = 5x4 + 6x3 – 6x2 – 3x2 + 9x + 5x + 5 – 1

= 5x4 + 6x3 – (6+3)x2 + (9+5)x + 4

= 5x4 + 6x3 – 9x2 + 14x + 4.

An another method for adding two polynomials

5x4 +0x3– 6x2 + 9x + 5

0x4 + 6x3 – 3x2 + 5x – 1

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8x4 + 6x3– 9x2 + 14x + 4
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Example 2:

Consider e1 and e2 are two events with a random trial such that P(E2)=0.25, P(E1 or E2)= 0.95 and P(E1 and E2) = 0.35, find the value of P(E1).

Solution:

Let P (E1) = x then,

P (E1 or E2) = P (E) + P (E2) – P (E1 and E2)

0.95 = x + 0.25 – 0.35

Adding the trial value

x = (0.95-0.25 + 0.35) = 0.65

Hence the value of P (E1) = 1.05

Example 3:

Find the increases percentage value from 35 to 50.5?

Solution:

Changes in value = new value – original value

50.5 – 35 = 15.5

Increased percentage = `15.5 / 35` x100%

Answer:

The increased percentage value is = 44.2%


Tutorvista math help practice problem


Problem:

Adding the polynomial 8x4 – 5x2 + 9x + 4 and 4x + 6x3 – 3x2 – 1.

Answer: 8x4 + 6x3– 8x2 + 13x + 3

Problem:

Find how many percentage increases from 30 to 55.5?

Answer: 85%

Problem:

Consider e1 and e2 are two events with a random trial such that P(E2)=0.35, P(E1 or E2) = 0.75 and P(E1 and E2) = 0.45, find the value of P(E1).

Answer:

P (E1) = 0.85