samsamisam4951
25.11.2021 •
Mathematics
At a local elementary school, 35 percent of all students have brown eyes, 45 percent have brown hair, and 60 percent have brown hair or brown eyes. A student will be selected at random from the school. Let E represent the event that the selected person has brown eyes, and let H represent the event that the selected person has brown hair. Are E and H mutually exclusive events?
a. Yes, because P(E∩H)=0
b. Yes, because P(E∩H)=0.2
c. Yes, because P(E∩H)=0.6
d. No, because P(E∩H)=0.2
e. No, because P(E∩H)=0.6
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Ответ:
The complete question is as below and diagram is also attached:
Elena’s backyard is in the shape of a rectangle. She created a triangular-shaped flower bed (shown as the shaded region) to plant flowers in. The area of the triangular flower bed is 125 square feet. The area of her backyard that does not include the flower bed is 575 square feet
The correct answer is 575 sq. m²
Step-by-step explanation:
The area of triangle = = = 125
The area of square = A = LW
= 35 × 20 = 700
Thus, the answer will be
= 700 - 125
= 525.