Evaluate the expression for x=1,y=4 and z =-2. Write your answer as an integer or round to the nearest hundredth , if needed.

Step-by-step explanation:

Putting values of x y and z in the expression

2(1) - [(1)(4) + 1]2 - (-2)

2 - (4+1)2 + 2

2 - (5)2 + 2

2 - 25 + 2

-23 + 2

-21

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

answer is : muchas/tipicas

have a nice day!

~recklesschicken