3 years ago

Find the measures of the angles in each triangle x° (x + 2) 72°

2 answers:

8 0

There are 180 degrees in every triangle, so you know that all the variables inside the triangle need to add up to that. From there you can solve the equation and substitute the x into the (x+2) equation.

ivanzaharov [21]3 years ago

4 0

Took quiz thanks good luck it was correct

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Excursion boat on the river takes 2 1/2 hours to make the trip to a point 12 miles upstream and to return if the rate at which t

Mama L [17]

Answer:

Let the current speed be "c";

Then the boat speed in still wate is "5c":

-----------------------

Upstream speed:

distance = 12 miles ; rate = 5c-c = 4c mph ; time = 12/4c = 3/c hrs

---------------------------

Downstream speed:

distance = 12 miles ; rate = 5c+c = 6c mph ; time = 12/6c = 2/c hrs

Step-by-step explanation:

Equation:

time + time = 2 1/2 hrs

3/c + 2/c = 5/2

Multiply thru by 2c to get:

6 + 4 = 5c

c = 2 mph (speed of the current)

5c = 10 mph (speed of the boat in still water)

3 0

3 years ago

Wich statement is true about a line and a point?

Bogdan [553]

A line are two rays in opposite directions and go on forever, and a point is a location on any type of line segment or shape ( see pictures for examples)