What is the value of g(-4)?

-1

Step-by-step explanation:

since x≤-4

then we will.use the first formula

g(x) = 3√x+5

g(-4)= 3√-4+5

=3√-1

= -1

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1