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a_sh-v [17]
2 years ago
15

Nathan orders a large pizza (14-inch diameter). He is hungry and decides to eat half of the pizza. What is the surface area of t

he remaining pizza? Show your working
Mathematics
1 answer:
gizmo_the_mogwai [7]2 years ago
8 0

Formula: 1/2(πr²)

radius: 14/2=7

1/2(π x 7²)

So the Surface Area is: 76.96902001. Round it to the decimal point u want

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DedPeter [7]
17 is next in the pattern
7 0
3 years ago
Read 2 more answers
Solve the system of equations algebraically: x^2 +y^2 =25, y=x^2 +3
aalyn [17]

Answer:

{ \tt{ {x}^{2} +  {y}^{2}  = 25 -  -  -  \{eqn(a) \}}} \\ { \tt{y =  {x}^{2} + 3 -  -  -  \{eqn(b) \} }}

» substitute y in eqn(a) with y in eqn(b)

{ \tt{ {x}^{2} + ( {x}^{2}  + 3) {}^{2}   = 25}}  \\ { \tt{ {x}^{2}  + ( {x}^{2}  + 6x + 9) = 25}} \\ { \tt{2 {x}^{2} + 6x + 9 = 25 }} \\ { \tt{2 {x}^{2}  + 6x - 16 = 0}} \\ { \tt{x = 1.7 \:  \: and \:  \:  - 4.7}}

» Find y in eqn(b)

{ \tt{y =  {x}^{2} + 3 }} \\ { \tt{y = 5.89 \:  \: and \:  \: 25.09}}

8 0
3 years ago
You have the following numbers: 1, 2, 3, 4, 5. Using these numbers, write at least 10 different mathematical expressions. Use at
masya89 [10]

Mathematical expressions allow us to relate numbers using mathematical symbols to make calculations. some examples are:

  • 2 + 3 = 5
  • 4 - 1 = 3
  • 2 × 2 = 4
  • 4 ÷ 2 = 2
  • 2² + 1 = 5
  • (1 + 2) + (2 × 1) = 5
  • (2 + 3) - 4 = 1
  • (2 + 2)² ÷ 4 = 4
  • (2 ÷ 4)² × 4 = 1
  • (2 + 2)² (4 ÷ 2) - (2 × 4)(5 - 1) + 5 = 5

<h3>What is a mathematical expression? </h3>

A mathematical expression is a sequence of characters that are intended to express a general relationship between the terms expressed in the formula.

Mathematical expressions generally have symbols like:

  • Add +
  • Subtraction -
  • Multiplication ×
  • Division ÷
  • Exponent x^{x}
  • Equal =
  • Parentheses ()

According to the above, some examples of mathematical expressions are:

  • 2 + 3 = 5
  • 4 - 1 = 3
  • 2 × 2 = 4
  • 4 ÷ 2 = 2
  • 2² + 1 = 5
  • (1 + 2) + (2 × 1) = 5
  • (2 + 3) - 4 = 1
  • (2 + 2)² ÷ 4 = 4
  • (2 ÷ 4)² × 4 = 1
  • (2 + 2)² (4 ÷ 2) - (2 × 4)(5 - 1) + 5 = 5

Learn more about mathematical expressions in: brainly.com/question/14712183

5 0
3 years ago
3. (06.01 LC) Which point on the scatter plot is an outlier? (5 points) 70 60 50 40 30 20 * 10 R S 0 2 4 6 8 10 12 14 O Point P
musickatia [10]

Answer:

Point R

Step-by-step explanation:

Its the farthest away from the majority

7 0
3 years ago
Help me with this please
tatyana61 [14]

Step-by-step explanation:

5x - 5° = 40° ( being vertically opposite angles)

5x = 40° + 5°

5x = 45°

x = 45°/ 5

x = 9°

Now

< 1 = 5 * 9° - 5 = 45° - 5° = 40°

Hope it will help :)

8 0
3 years ago
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