What is 3.14 times 20 time 1/2

31.4

Step-by-step explanation:

So a really easy way to solve this is as goes

--> 3.14 x (20 x 1/2)

--> 3.14 x (10)

Now multipling by 10 is just moving the deciaml place one spot to the right

=> thus, we get 31.4

Hope this helps!

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)