Which expression represents the product or x3+2x-1 and x4 - x3+3?

Mathematics

1 answer:

alex41 [277]2 years ago

5 0

Answer:

4th option

Step-by-step explanation:

(x³ + 2x - 1)( $x^{4}$ - x³ + 3)

Each term in the second factor is multiplied by each term in the first factor, that is

x³( $x^{4}$ - x³ + 3) + 2x( $x^{4}$ - x³ + 3) - 1 ( $x^{4}$ - x³ + 3) ← distribute parenthesis

= $x^{7}$ - $x^{6}$ + 3x³ + 2 $x^{5}$ - 2 $x^{4}$ + 6x - $x^{4}$ + x³ - 3 ← collect like terms

= $x^{7}$ - $x^{6}$ + 2 $x^{5}$ - 3 $x^{4}$ + 4x³ + 6x - 3

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A family is trying to pick from different shades of paint for their living room. They have narrowed it down to 10 colors: 3 diff

NeTakaya

Answer:

30%

Step-by-step explanation:

A family is trying to pick from different shades of paint for their living room. They have narrowed it down to 10 colors: 3 different blues and 7 different greens. The family decides to just randomly select a color from these. What is the probability they will pick a shade of blue? Choose the answer in percent form. Question 3 options: 50% 100% 70% 30%

First, we need to convert the probability of picking a blue shade into a fraction.

= 3/10

Since this is by 10, we need to times 0.3 (numerator) by 10 (the number of outcomes) Whatever you do to the numerator, you do to the denominator. This means that you also times 10 by 10

This gives you 30/100

Since a percentage is out of 100, you don't need to change anything, just take away the 100 and put a percentage sign.

=30%

5 0

3 years ago

Read 2 more answers

(-10x-8)-70 (4x-11) + 46 -43(6x6) -54+ (8x5)

STatiana [176]

I feel like you just put random numbers in to waste someone time... but I did the problem any way.