Robert says that he can draw an obtuse equilateral triangle. Jonas says that is not possible. Who is correct and why? A.
Robert is correct as long as the other two angles are acute and all of the sides are the same length.

B.
Jonas is correct because an equilateral triangle has 3 acute angles and all sides the same length.

C.
Robert is correct because all equilateral triangles have 1 obtuse angle and all sides the same length.

D.
Jonas is correct because equilateral triangles have one right angle and two sides the same length.

The correct answer is B. Jonas is correct because an equilateral triangle has 3 acute angles and all sides the same lenght

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

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