Answer:
-36
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
x⁴ - 3x² - 90
x = -3
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em>: (-3)⁴ - 3(-3)² - 90
- Exponents: 81 - 3(9) - 90
- Multiply: 81 - 27 - 90
- Subtract: 54 - 90
- Subtract: -36
Answer:
The recipe did require 50 grams of cheese.
Step-by-step explanation:
Since, 60 percent extra cheese is used, therefore the given amount of cheese is 160% of recipe requirement. Or in other words, the given amount of cheese is 1.6 times the requirement.
80 grams = (1.6)(Recipe Requirement)
Recipe Requirement = 80/1.6 grams
<u>Recipe Requirement = 50 grams</u>
Answer:
B. 26
Step-by-step explanation:
Use photomath because it is very helpful bro
If the perimeter is 80, the length plus the width is 80/2=40, so the length is 40-4=36 cm.
