Mathematics, 23.02.2020 21:31 leroybennett06
[50 Points] At a certain high school, 25 students play only stringed instruments, 15 students play only brass instruments, and 5 students play both. There are also 5 students who play neither stringed nor brass instruments. what is the probability that a randomly selected student plays either a string or brass instrument?
Answers: 1
Mathematics, 21.06.2019 18:30
Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90Β° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that Ξ΄ and Ξ΄ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?
Answers: 2
Mathematics, 21.06.2019 22:00
What is the length of the segment, endpoints of which are intersections of parabolas y=x^2β 11/4 xβ 7/4 and y=β 7 /8 x^2+x+ 31/8 ?
Answers: 1
Mathematics, 22.06.2019 02:00
The base of a pyramid is a square with 5 lines of 5cm the slant height of each lateral face of the pyramid is 6 cm what is the surface area of the pyramid
Answers: 3
[50 Points] At a certain high school, 25 students play only stringed instruments, 15 students play o...
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