Answer:
x = 12
Step-by-step explanation:
Pythagorean triplet
12,16,20
So, the value of x is 12
x + 256 = 400
x = 400 - 256
x = 144
The square of 12 is 144
Answer:
Step-by-step explanation:
Hope this helped!
~AnonymousHelper1807
Answer:
Total Composite Area: 5/2π in²
Total Composite Perimeter: 3π + 2 in
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
- Diameter: d = 2r
- Area of a Circle: A = πr²
- Circumference Formula: C = 2πr
Step-by-step explanation:
<u>Step 1: Define</u>
Radius of Circle ABC = 2 in
Radius of Circle AD = 1 in
<u>Step 2: Find Area</u>
Since the formulas are for use for <em>full </em>circles and we only have semicircles, we need to half the formulas.
We add the 2 composite figures to find the <em>total </em>area.
- [Circle AD] Substitute [AC]: A = 1/2π(1 in)²
- [Circle ABC] Substitute [AC]: A = 1/2π(2 in)²
- [Total] Combine: A = 1/2π(2 in)² + 1/2π(1 in)²
- Exponents: A = 1/2π(4 in²) + 1/2π(1 in²)
- Multiply: A = 2π in² + 1/2π in²
- Add: A = 5/2π in²
<u>Step 3: Find Perimeter</u>
Since the formulas are for use for <em>full </em>circles and we only have semicircles, we need to half the formulas.
We add the 2 composite figures to find the <em>total </em>perimeter. Don't forget circumference is only the <em>curve</em> of the circle.
- [Circle AD] Substitute [CF]: C = 1/2(2π · 1 in)
- [Circle ABC] Substitute [CF]: C = 1/2(2π · 2 in)
- [Total] Combine: C = 1/2(2π · 2in) + 1/2(2π · 1 in) + 2 in
- Multiply: C = 1/2(4π in) + 1/2(2π in) + 2 in
- Multiply: C = 2π in + π in + 2 in
- Add: C = 3π + 2 in
Step-by-step explanation:
Let the number of toppings be y
If cheese pizza at Chicago's Deep Dish pizza costs $7 and each topping costs an additional $0.75, the total amount of the dish pizza will be expressed as;
$7 + $0.75y ..... 1
Also, if a cheese pizza at Brooklyn's cost $12 and each topping costs an additional $0.50, then the total cost of cheese pizza will be;
$12 + $0.50y ........ 2
If the two pizzas cost the same, then equation 1 will be equal to equation 2 as shown;
7+0.75y = 12+0.50y
Make y the subject of the formula to generate the required equation for y:
0.75y-0.50y = 12-7
0.25y = 5
divide both sides by 0.25
0.25y/0.25 = 5/0.25
y = 5/0.25
y = 20
Hence the equation that represents how many toppings, y, must be added so that the two pizzas cost the same is y = 5/0.25 and the number of toppings added is 20.
I don't know the answers but I have geometry next semester and just looking at this gives me a headache :( Is it a hard class?
