I’ve retake taken the photo in case you guys couldn’t see the questions i need on reply to this question need on 14-17

14. B

(6x^4 + 7x + 5x^3) - (4x^4 - 2x^3 + 3x)

2x^4 + 7x^3 + 4x

15. 150

The missing dimension is 12  

The rectangle formed has an area of 120 the small triangle has an area of 30  

16. C=

C= 25.60(4) + 14(4) (3-1)

C= 102.4 + 112

C= 214.4

17.  B

-5 = -3/4 (8) + 1

-5 = -6 + 1

-5 = -5

the equation is true

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.