Patrick tried to evaluate the expression 7 x [8 - 3 x 2]. His work is below, 7x18 - 3x2
Step 1:
7 x [5 x 2]
Step 2:
7 x 10
Step 3:
70
In which step did Patrick first make a mistake?
Choose 1

Patrick was supposed to multiply 3 and 2 first and then do 8 - 6. (PEMDAS). So he made a mistake in the first step.

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!