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bixtya [17]
2 years ago
8

Does anyone know the expression for this?

Mathematics
1 answer:
jok3333 [9.3K]2 years ago
3 0
SA=2(3)(3)+(3)(3)+(3)(3)
Explanation: the formula for SA for a rectangular prism is SA=2(wl+hl+hw)
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The scale of a model a airplane is 3cm to 1.02m. the model is 20cm long how is the real plane.
Aloiza [94]
20/3=6.666  repeating times that by 1.02 and you get 6.8. the real plane is 6.8m long.
8 0
3 years ago
Read 2 more answers
40 miles x 25 min.=?mph
Natalka [10]
\bf \stackrel{miles}{40}~in~\stackrel{minutes}{25}\implies \cfrac{40~miles}{25~\underline{minutes}}\cdot \cfrac{60~\underline{minutes}}{hr}\implies \cfrac{40\cdot 60~miles}{25~hr}
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\cfrac{2400}{25}\cfrac{miles}{hr}\implies 96\frac{miles}{hr}
4 0
3 years ago
Tell me all the properties of algebra
Keith_Richards [23]

Answer:

  • Commutative Property of Addition.-  
  • 2 + 3 = 3 + 2
  •  Commutative Property of Multiplication.- ex. 5 × 7 = 7 × 5  
  • Associative Property of Addition.- ex.(2 + 3) + 6 = 2 + (3 + 6)  
  • Associative Property of Multiplication.- ex. (7 × 3) × 10 = 7 × (3 × 10)
  • Distributive Properties of Addition Over Multiplication- ex. 2 × (2 + 8) = 2 × 2 + 2 × 8  
  • (2 + 8) × 10 = 2 × 10 + 8 × 10
  • The reciprocal of a non zero real number a is 1/a.- ex. reciprocal of 5 is 1/5 and 5 × (1/5) = 1

Step-by-step explanation:

7 0
3 years ago
The distance between two locations, A and B, is calculated using a third location C at a distance of 15 miles from location B. I
Jobisdone [24]
We will first calculate ∠A:
∠∠A = 180° - ( 105° + 20 ° ) = 180° - 125° = 55°
Then we will use the Sine Law:
15 / sin 55° = AB / sin 20°
15 / 0.81915 = AB / 0.342
AB · 0.81915 = 15 · 0.342
AB · 0.81915 = 5.13
AB = 5.13 : 0.81915
AB = 6.26 ≈ 6.3 miles
Answer: The distance between the locations A and B is 6.3 miles.
4 0
3 years ago
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There are 10 boys and 8 girls in the chess club at West Middle School. The principal randomly selects one student from the chess
egoroff_w [7]

Answer:

5/9 of a chance

Step-by-step explanation:

or a 55.55- chance

5 0
3 years ago
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