Evaluate the expression when c= -5 and d=2
4(3d + 2c) + 12
1. -4
2. 76
3. -16
4.. -32
To evaluate the expression when c = -5 and d = 2, substitute -5 for c and 2 for d in the given expression.
4(3d + 2c) + 12
= 4(3(2) + 2(-5)) + 12
= 4(6 - 10) + 12
= 4(-4) + 12
= -16 + 12
= -4
Therefore, the answer is 1. -4
evaluate this expression when x= -1 , y = -8, and z = 1/4
xyz
1. 2
2. -2
3. 4
4. 32
To evaluate the expression when x = -1, y = -8, and z = 1/4, substitute -1 for x, -8 for y, and 1/4 for z in the given expression.
xyz
= (-1)(-8)(1/4)
= 8/4
= 2
Therefore, the answer is 1. 2.
evaluate the expression when w = 3, x = -2, y = 6, and z = 0.5.
yz/w + 2x
5
-3
-4
0
To evaluate the expression when w = 3, x = -2, y = 6, and z = 0.5, substitute 3 for w, -2 for x, 6 for y, and 0.5 for z in the given expression.
yz/w + 2x
= (6)(0.5)/3 + 2(-2)
= 3/3 + (-4)
= 1 + (-4)
= -3
Therefore, the answer is 2. -3.
To evaluate the expression when c = -5 and d = 2, substitute these values into the expression and simplify:
Given expression: 4(3d + 2c) + 12
Step 1: Substitute c = -5 and d = 2
4(3(2) + 2(-5)) + 12
Step 2: Simplify within parentheses
4(6 - 10) + 12
Step 3: Simplify within parentheses
4(-4) + 12
Step 4: Simplify multiplication
-16 + 12
Step 5: Perform addition
-4
Therefore, the expression evaluates to -4. So, the correct answer is 1. -4.
To evaluate the expression when c = -5 and d = 2, we need to substitute the values of c and d into the expression and calculate the result.
Given expression: 4(3d + 2c) + 12
Substituting c = -5 and d = 2:
4(3(2) + 2(-5)) + 12
Now, let's simplify the expression step by step:
First, solve within the parentheses:
3(2) = 6
2(-5) = -10
The expression becomes:
4(6 - 10) + 12
Next, simplify within the second set of parentheses:
6 - 10 = -4
Now, substitute the value back into the expression:
4(-4) + 12
Now, multiply:
4(-4) = -16
Finally, complete the addition:
-16 + 12 = -4
Therefore, the expression evaluates to -4.
So, the correct answer is option 1. -4.