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Bezzdna [24]
3 years ago
13

What is the highest common factor (HCF) of 60 and 45?

Mathematics
2 answers:
astraxan [27]3 years ago
7 0
The HCF of 60 and 45 is 15.
lisov135 [29]3 years ago
5 0
60 = 45 x 1 + <u>15</u>
<span>45 = 15 x 3 + 0
</span>
HCF is 15.
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Find the area of each regular polygon. Round your answer to the nearest tenth if necessary.
tatuchka [14]

*I am assuming that the hexagons in all questions are regular and the triangle in (24) is equilateral*

(21)

Area of a Regular Hexagon: \frac{3\sqrt{3}}{2}(side)^{2} = \frac{3\sqrt{3}}{2}*(\frac{20\sqrt{3} }{3} )^{2} =200\sqrt{3} square units

(22)

Similar to (21)

Area = 216\sqrt{3} square units

(23)

For this case, we will have to consider the relation between the side and inradius of the hexagon. Since, a hexagon is basically a combination of six equilateral triangles, the inradius of the hexagon is basically the altitude of one of the six equilateral triangles. The relation between altitude of an equilateral triangle and its side is given by:

altitude=\frac{\sqrt{3}}{2}*side

side = \frac{36}{\sqrt{3}}

Hence, area of the hexagon will be: 648\sqrt{3} square units

(24)

Given is the inradius of an equilateral triangle.

Inradius = \frac{\sqrt{3}}{6}*side

Substituting the value of inradius and calculating the length of the side of the equilateral triangle:

Side = 16 units

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4 0
3 years ago
He statement: 4 – 3+5 = –6 +8+4. This is a mathemati
kotegsom [21]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Divide using long division. 6x^3+4x^2+3x+2/ 3x+2
12345 [234]

Answer: 2x² + 1

<u>Explanation:</u>

          <u>  2x²  +  0x  +  1     </u>

3x + 2 ) 6x³ + 4x² + 3x + 2

         - <u>(6x³ + 4x²</u>)    ↓     ↓

                                3x + 2

                             - <u>(3x + 2)</u>

                                        0

5 0
3 years ago
Cody pays $657 for six months of guitar lessons. He pays the same amount for lessons each month. Which of the following is the b
stiv31 [10]
The answer is D. $110
4 0
3 years ago
Can someone help me with this question????
frutty [35]

Answer:

Hi! I think I got the answer, it is a tricky one! The answer I got was C) 1029.

Step-by-step explanation:

1. It is good to first know that 40%more means 1.4 (some number). So, if n is 40% more than the sum of the other three numbers: n= 1.4* (<em>l +m+p)</em> .

2. Also note that: <em>n+l+m+p= </em>1764; so, <em>n = 1764-l-m-p.</em>

3. Since we have two expressions for n, we can equate them to each other. Giving, 1.4* (<em>l +m+p) =1764-l-m-p . </em>Simplifying we get 2.4 (<em>l +m+p)</em>=1764.

4. <em>l +m+p =1764/2=735.</em>

5. 1764-735=1029

Hope that helps! Feel free to message back if there are any questions!

<em />

7 0
2 years ago
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