evaluate 3+(-h)+(-4) Where h= -7

Steps to solve:

3 + (-h) + (-4) when h = -7

~Substitute

= 3 +  (-(-7)) + (-4)

~Simplify

= 3 + 7 - 4

~Simplify

= 6

Best of Luck!

6

Step-by-step explanation:

3 + (-h) + (- 4)

Substituting h = -7 (be mindful of the minus sign already with the 'h'

3 + (-.-7) - 4

3 + (+7) - 4

3 + 7 - 4

10 - 4

= 6.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.