Mathematics, 24.07.2020 20:01 Steelo600
This three- dimensional figure is a triangular pyramid where the base and lateral are congruent equilateral triangles and the height of each triangular face 17.32 inches The surface are of the figure is Square inches
Answer from: ericgideon
Hey there!
The surface area of the triangular pyramid can be expressed as: 4 times the area of one triangle.
The area of one triangle is 17.32, so the total surface area is 69.28.
Hope this helps :)
Answer from: Quest
26
step-by-step explanation:
Answer from: Quest
37/3
step-by-step explanation:
step 1: simplify both sides of the equation.
7x+8(x+
1
4
)=3(6x−9)−8
7x+(8)(x)+(8)(
1
4
)=(3)(6x)+(3)(−9)+−8(distribute)
7x+8x+2=18x+−27+−8
(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)
15x+2=18x+−35
15x+2=18x−35
tep 2: subtract 18x from both sides.
15x+2−18x=18x−35−18x
−3x+2=−35
step 3: subtract 2 from both sides.
−3x+2−2=−35−2
−3x=−37
step 4: divide both sides by -3.
−3x
−3
=
−37
−3
x=
37
3
Mathematics, 21.06.2019 19:30, shavonfriend27
Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row
Answers: 3
Mathematics, 21.06.2019 23:30, bbby2
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
Answers: 1
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