Answer:
0.85
1.176
Step-by-step explanation:
E = 17/20 D
Let D = 1,
E = 17/20 × 1
E = 17/20 = 0.85
1 dollar = 0.85 Euro
E = 17/20 D
17/20 D = E
D = 20/17 E
Let E = 1,
D = 20/17 × 1
D = 1.176
1 Euro = 1.176 dollar
Answer:
(a) ∠EFH = 68°
(b) ∠EGF = 21°
Step-by-step explanation:
(a) The given parameters are;
The diameter of the circle = Segment
Arc = 138°
∠GFH = 22°
∠ EFG = (Angle subtended by the diameter EG at the center)
Arc mEG = 180° (Arc subtended by the diameter of a circle = 180°)
∠ EFG is subtended by the diameter EG at the center
∴ ∠ EFG = 90° (Angle at the center = 2 times angle at the circumference)
∠EFG = ∠EFH + ∠GFH (Angle addition postulate)
∴ ∠EFH = ∠EFG - ∠GFH = 90° - 22° = 68°
∠EFH = 68°
(b) ∠EGF
Arc GH = 44°
Arc mFE + Arc + Arc mEHG = 360 (Sum of angles at the center of a circle)
Arc mFE = 360 - ( Arc + Arc mEHG )
Arc mFE = 360 - 180 - 138 = 42°
∠EGF = Arc mFE/2 (Angle at the center = 2 times angle at the circumference)
∠EGF = 42/2 = 21°
∠EGF = 21°
It has to go through two steps,
first: works in the morning at 50%
second : overheats rest of the day at 15%
Probability that it will work in the morning and overheats rest of the day is the product of the two probabilities, namely
Probability=0.50*0.15=0.075, or 7.5%.
Answer: The answer is (b) 100° C.
Step-by-step explanation: Given that Bobby's mom sets a small small pot of water on the stove and lights the burner, which after ten minutes bobby notices boiling. We nee to choose the correct temperature of the water among the four given options.
We know very well the freezing and boiling point of water, which are 0° C and 100° C. And at 100° C, the water starts vapourising.
Since the water was boiling when Bobby notices the pot, so the temperature of the pot must be 100° C.
Thus, the correct option is (b) 100° C.
Answer:
The mean is 4
Step-by-step explanation:
15+2+4 = 21 which you can divide by 3 = 7