2. The absolute value of -8 is 8. True
3. An isosceles triangle has three congruent sides.
Nope. It has two
4. The cosine is the ratio between the length of the opposite leg to the length of the hypotenuse.
I have no idea.
5. The boiling point of water is 212°C.
true
6.
The expression 28xyz has 4 terms.
true
7.
Shapes that have the same size and shape are said to be similar.
false
8.
The points where the sides of a polygon meet are called the vertexes.
true
9. A heptagon is a seven-sided polygon.
true (hexagon)
10.
An acute angle has more than 90° but less than 180°.
true
Answer:
Answer in pictures attached.
Step-by-step explanation:
You're welcome!
This is a typical work problem in algebra. The approach to this is using the equation: Rt = 1, where R is the rate per person working, t is the amount of time worked by an individual. All their rates must equal to 1. The solution is as follows:
12/x + 15/x = 1
Solving for x,
x = 27 hours
So, if they work together, they can finish the work in 27 hours.
Answer: They would be A.
Step-by-step explanation: Don't take my word for it 100%
The amount more of rain that fell in those three days than normally falls in July and August combined was 31.19 cm.
<h3>How much more rain fell in those three days?</h3>
The amount of rain in those three days was 41.2 cm.
The combined normal rain July and August is:
= 6.36 + 3.65
= 10.01 cm
The difference is therefore:
= 41.2 - 10.01
= 31.19 cm
Find out more on quantity of rainfall at brainly.com/question/13045834
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