True Or False Questions

Mathematics

1 answer:

Bad White [126]3 years ago

8 0

Answer:

Step-by-step explanation:

All isosceles triangles have at least 2 acute angles due to 2 sides are equal.

The exterior angle of an equilateral triangle is obtuse.

If the perimeter of an equilateral triangle is P, then the length of each of the sides is P/3.

<u>FALSE</u>

All isosceles triangles are equilateral triangles.

If you know the length of one of the legs of an isosceles triangle, you can determine it’s the perimeter

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A bird caught a fish on the waters surface and flew in a straight line diagonal to the water for 100 yards. Then, it dropped the

ozzi

Answer:

1. B

2. B

Step-by-step explanation:

** Attached picture of the situation

The bird caught the fish at point A, flew until B (which is 100 yds away, dropped the fish at C (which is horizontally 50 yards from A).

We want the angle that the bird creates with the water (horizontal). It is angle BAC. With respect to the right triangle, we can say that we know "hypotenuse" and "adjacent" side to angle BAC. cosine relates hypotenuse and adjacent, thus we can write:

$Cos(BAC)=\frac{50}{100}\\Cos(BAC)=\frac{1}{2}\\BAC=Cos^{-1}(\frac{1}{2})\\BAC=60$

correct answer is B

Here, we want to find the distance (length) of segment BC. With respect to the angle BAC (we found to be 60), we can say BC is "opposite". We know hypotenuse to be 100. So let's use sine, since sine is ratio of opposite to hypotenuse. Thus, we can write:

$Sin(BAC)=\frac{BC}{100}\\Sin(60)=\frac{BC}{100}\\BC=Sin(60)*100\\BC=86.6$

correct answer is B

4 0

4 years ago

Read 2 more answers

avanturin [10]

Answer:

Step-by-step explanation:

because i said so

5 0

3 years ago

Your baseball team has won 6 games and lost 4 games. If the team does not lose any more games, how many games must the team win

irakobra [83]

You lost 4 but you don't loose anymore
You won 6 and you keep on winning more games.
Since you don't loose anymore games, in the ratio 2:1, you would replace the "1" with 4 and replace the 2 with 6+n.
the ratio is currently 6+n:4
Note that (6+n) has to be twice as much as 4.
The number twice as much as 4 is 8
therefore, 6+n is 8
and n = 2
You would have to win 2 more rounds.

4 0

3 years ago

The greatest common factor of 3m2n + 12mn2 is

Kamila [148]