Evaluate the expression below for x = 4, y = –5, and z = 2.

3x^2 -4y+xz

a.12

b.36

c.52

d.76

Step-by-step explanation:

Put x = 4, y = -5 and z = 2 to the expression 3x² - 4y + xz and use PEMDAS:

3(4)² - 4(-5) + (4)(2)

= 3(16) + 20 + 8

= 48 + 20 + 8

= 76

Step-by-step explanation:

Substitute the values into the expression

3x^2 -4y+xz

3(4)^2 -4(-5)+(-5)(2)

Use BIDMAS, or another alternative.

B - Brackets.

We don't have any operations in brackets. We only have integers on their own.

I - Indices.

(4)^2 = 16

Substitute this into the expression

(3)(16) - 4(-5) + (-5)(2)

D - Division, M - Multiplication

Two brackets side by side means multiply.

(3)(16) = 3 * 16 = 48

4(-5) = 4 * -5 = -20

(4)(2) = 4 * 2 = 8

Substitute this into the expression.

48 - -20 + 8

A - Addition, S - Subtraction

Two minus signs become addition.

However, two different signs means minus.

48 - -20 + 8

48 + 20 + 8

68 + 8

76

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

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then i might be able to .