Answer:
1. ∠A = 71.9°
2. ∠B = 62.9°
3. ∠C = 27.5°
Step-by-step explanation:
By using a calculator, we have;
cos A = 0.31
sin B = 0.89
tan C = 0.52
1. Therefore, ∠A = cos⁻¹(0.31), inputting the digits in the calculator and looking for the inverse sign, we have;
∠A = cos⁻¹(0.31) = 71.94° = 71.9° to the nearest tenth of a degree.
2. For sin B = 0.89, we have;
∠B = sin⁻¹0.89 = 62.873° ≈ 62.9° with the answer rounded to the nearest tenth of a degree.
3. Similarly, for tan C = 0.52, inputting the values in the calculator and pressing the tan⁻¹ button, we have;
∠C = tan⁻¹(0.52) = 27.474°, which is 27.5° rounded to the nearest tenth of a degree.
Let number of laps she walked be equal to L
L=$7
7L = $105 (equation)
OPTIONAL: If you want to find how may laps she walked, divide both sides by 7
L = 105/7 = 15
She walked 15 laps
The probability would be 0.40
Given,
The elements in set S are,
1, 2, 3, 4, 5, 6, 7, 9, 10,
Number of elements = 10,
Since, the outcomes are equally likely,
And, we know that,
So, the probability of getting 1, 2, 4, or 6 =
Hence, the probability of the event E = {1, 2, 4, 6} is 0.40.
Looks like the integral is supposed to read
The same integral in the required order is
216 muffins were ordered
81/x = 37.5%/100%
divide 37.5 by 100
81/x = .375
multiply x to both sides
×(x)= ×(x)
81 = .375x
divide both sides by .375
÷.375 = ÷.375
216 = x
x = 216
cos43=60/AC
AC=60/cos43=82.04
cos27=60/BC
BC=60/cos27=67.34
sin(90-43)/BC=sin(43+27)/AB
AB=BCsin70/sin47
AB=67.34sin70/sin47
AB=86.522
P=86.522+67.34+82.04
P=235.9m