Answer:
A=10 cm
B=5 cm
Area of square = 25 cm
Step-by-step explanation:
Since that is an equilateral triangle based off the fact that all the sides are the same variable (a) then that means 30 divided by 3 which equals 10. So now we know that a = 10. Lets input that information for the rectangle. Since there are 2 a's that equals 20 and the perimeter is 30 so b has to be 5 since 5 times 2 is 10 plus 20 equals 30. so now we know that a=10 and b=5 so our squares sides are all 5. The area of the square is 25
Answer:
V = 392 m³
Step-by-step explanation:
Volume rectangular prism
V = (1/3)AH
H is the height of the prism
A is the area of the base triangle
A = (1/2)bh
A = (1/2)(7)(24)
A = 84
V = (1/3)(84)(14)
V = 392 m³
Answer:
<h2>0</h2>
Step-by-step explanation:
There are not rotational symmetry.
The answer is 5.5
The standard deviation (sd or σ) of the sample mean difference is:
sd = √(sd₁²/n₁ + sd₂²/n₂)
For the population A:
sd₁ = 17.6
n₁ = 25
For the population B:
sd₂ = 21.2
n₂ = 30
Hence:
sd = √(sd₁²/n₁ + sd₂²/n₂)
= √(17.6²/20 + 21.2²/30)
= √(309.76/20 + 449.44/30)
= √(15.49 + 14.98)
= √(30.47)
= 5.5
Answer: It depends if the weekends means that Saturday and Sunday each sold 761 tickets or that they sold 761 tickets put together. If they sold 761 tickets put together, then the answer is 39572. If Saturday and Sunday each sold 761 tickets, then the answer is 79144.