I need help with 7 and 8 it ask If it's a right triangle

Mathematics

2 answers:

zvonat [6]3 years ago

5 0

If you know the law of sines and cosines, you will realize that not every triangle is a right triangle. If all of the three angles add up to 180, then you would say that it is a right triangle. Here is a sheet that you can use if you know sines and cosines law.

MAXImum [283]3 years ago

3 0

They are both not right angles. You can easily tell because you can't draw a square in the corner.

You might be interested in

The line that passes through the points (-3,0) and (5,8) is

Maru [420]

The answer is increasing

8 0

3 years ago

1 dozen of eggs for Rs 84 or 18 eggs for Rs 117 . Which is the best buy in the following cases. full explanation

elixir [45]

Answer:

18 eggs for Rs 117

Step-by-step explanation:

Divide 84 by 12 (Dozen = 12) and you get 7 which means every egg is for Rs. 7

Divide 117 by 18 and you get 1.39 which means every egg is for Rs. 1.39

8 0

2 years ago

A form of radium decays exponentially with a half-life of 20 years. This means that 50% will be gone every 20 years. A human can

IrinaVladis [17]

<h2>✔Answer</h2>

<h2>✏Part A :-</h2><h2>Exponential decay describes the process of reducing an amount by a consistent percentage rate over a period of time. It can be expressed by the formula y=a(1-b)x wherein y is the final amount, a is the original amount, b is the decay factor, and x is the amount of time that has passed.</h2>

<h2>✏Part B :- </h2><h2 /><h2>The Earth could look like within 100 years if we succeed in curbing climate change.</h2>

<h2>Hope it helps.❤</h2><h2 />

6 0

3 years ago

Gill Rolls a number Cube 78 times how many times can he expect to roll a number greater than one

saul85 [17]

Argument
The only number he can't roll is the number one. There are 5 numbers that he can roll.

The probability of success therefore is 5/6.

Formula
Number of successful rolls = probability of success * total number of rolls.
Total number of rolls = 78
Probability = 5/6

Number of successful Rolls = 5/6 * 78
Number of successful Rolls = 390/6
Number of successful Rolls = 65

Answer
He should roll a number greater than one 65 times <<<<< answer

5 0

3 years ago

2X plus 5 minus X plus 3X plus X -2

IrinaK [193]

Answer:

=5x+3

Step-by-step explanation:

3 0

3 years ago