Hey there!
Multiply the amount of fabric used by the number of dresses. 3/4 x 3= 9/4. Sammie uses 9/4 yards of fabric to make all 3 dresses.
I hope this helps!
The perimeter is about 82 yards
first, the perimeter of the rectangles is 30*2 = 60 (the 7 is not a part of the overall perimeter so we do not need to add it)
the "perimeter" (circumference) of the 2 semi circles = (22/7)*7 = 22by using the formula C = pi*d (2 semi circles of the same diamter = 1 circle)
now just add the 2 answers
22 + 60
= 82 yards
Answer:
11.84% approx.
Step-by-step explanation:
Expected return = Respective return × Respective probabilities
= (18.5 × 0.71) + (-7.6 × 0.29)
= 10.931%
Probability Return Probability ×(Return - expected return)²
0.71 18.5 0.71×(18.5 - 10.931)² = 40.67573
0.29 -7.6 0.29×(-7.6 - 10.931)² = 99.585409
Total = 140.261139%
![SD=[\frac{\text{total probability(return-expected return)}^2}{\text{total probability}}]^{(\frac{1}{2})}](https://tex.z-dn.net/?f=SD%3D%5B%5Cfrac%7B%5Ctext%7Btotal%20probability%28return-expected%20return%29%7D%5E2%7D%7B%5Ctext%7Btotal%20probability%7D%7D%5D%5E%7B%28%5Cfrac%7B1%7D%7B2%7D%29%7D)
= ![[\frac{140.261139^2}{140.261139}]^{\frac{1}{2} }](https://tex.z-dn.net/?f=%5B%5Cfrac%7B140.261139%5E2%7D%7B140.261139%7D%5D%5E%7B%5Cfrac%7B1%7D%7B2%7D%20%7D)
= 11.84319 ≈ 11.84% approx.
The probability for the red die is 50% as with the green die.
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