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VladimirAG [237]
3 years ago
8

WILL GIVE BRAINLIEST PLEASE HELPP!!!!! I NEED HELP !!!! PLEASE NOW!!!!! PLEASE WITH STEPS!!!

Mathematics
1 answer:
kvasek [131]3 years ago
6 0

A. find the angular speed

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State whether the following statements are true or false, and explain your reasoning.
Masja [62]

Answer:

Step-by-step explanation:

a) A square is a rectangle.   True

Reason: Property of Rectangle: (i) Opposite sides are equal and parallel. (ii) Each angle is 90 (iii) Diagonals are equal and bisect each other.

A square hold all these properties. A square is  a rectangle.

b) A polygon with 21 sides has 432 possible diagonals. False

Reason: Number of diagonals of a polygon = \frac{n(n-3)}{2}

n --> number of sides of a polygon.

= \frac{21*18}{2} = 189 diagonals

c) All three angles in an Isosceles triangle are equal. False

Reason: In an isosceles triangle, two angles are equal.

If three angles are equal, then that is an equilateral triangle.

d) The measures of the exterior angles of a nonagon, a nine-sided figure, have a sum of 360°. True.

Reason: The sum of measures of the exterior angles  of any polygon is 360

6 0
3 years ago
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Which of these methods of paying for college does NOT need to be repaid?
Nata [24]

Answer:

Work study

Step-by-step explanation:

I did that question.

5 0
2 years ago
Becky is 7 year older than half of Bryan's age. If Bryan is 36 how old is becky ?
Tanya [424]

Answer: Im going to guess 25

Step-by-step explanation: bryan is 36 half of 36 is 18 and becky is 7 years older than 18 which half so you would do 18+7=25 there is your answer.

I THINK DONT QUOTE ME ON THAT ANSWER

8 0
3 years ago
If a recipe requires 400 grams of potatoes for four people, how many kilograms would be required for 12 people?
Tasya [4]

Answer:

1.2 kg

Step-by-step explanation:

We need 400 grams of potatoes for 4 people. That means each person will require 400 / 4 = 100 grams.

Now, we have 12 people, so the total number of grams needed will be:

(100 g/person) * (12 people) = 1200 grams

However, we want the answer in kilograms. There are 1000 grams in a kilogram, so divide 1200 by 1000:

1200 / 1000 = 1.2 kg

The answer is 1.2 kg.

6 0
2 years ago
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two trains leave the station on time.one train travels north at 60mph .the other train travels south at 50mph.how many miles wil
ozzi
It doesn't matter how far apart just so you know and you answered it 3330 miles apart because you multiply 60 by 50
8 0
3 years ago
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