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Gekata [30.6K]
3 years ago
6

What is the greatest common factor of 75,90,and 120?

Mathematics
2 answers:
Tresset [83]3 years ago
4 0

Answer:

15  

Step-by-step explanation:

The factors of 75 are: 1,     3,     5,                    15,          25,        75

The factors of 90 are: 1, 2, 3,     5, 6, 9, 10,      15, 18,           30, 45, 90  

The factors of 120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15,   20, 24, 30, 40, 60, 120

The greatest common factor is 15.

Lubov Fominskaja [6]3 years ago
3 0
I think the greatest common factor is 15
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Half of a circle

1 circle=360
1/2 circle=360/2=180

1/2 circle cut into 1/3
180 times 1/3=60
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3 years ago
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If x=7+root 40 ,find the value of root x+1by the root of x​
Luda [366]

Chapter : Algebra

Study : Math in Junior high school

x = 7 + √40

find √x of √x + 1

= √x + 1

= √(7+√40) + 1

in Formula is :

= √7+√40 = √x + √y

= (√7+√40)² = (√x + √y)²

= 7+√40 = x + 2√xy + y

= 7 + √40 = x + y + 2√xy

→ 7 = x + y → y = 7 - x ... Equation 1

→ √40 = 2√xy → √40 = 2.2√10 = 4√10

= xy = 10 ... Equation 2

substitution Equation 1 to 2 :

= xy = 10

= x(7-x) = 10

= 7x - x² = 10

= x² - 7x + 10 = 0

= (x - 5)(x - 2) = 0

= x = 5 or x = 2

Subsitution x = 5 and x = 2, to equation 1

#For x = 5

= y = 7 - x

= y = 7 - (5)

= y = 2

#For x = 2

= y = 7 - x

= y = 7 - (2)

= y = 5

and his x and y was find :

#Equation 1 :

= x = 5 and y = 2

#Equation 2 :

= x = 2 and y = 5

So that :

√7+√40 = √x + √y

= √7+√40 = √2 + √5

And that is answer of question :

= √2 + √5 + 1

3 0
3 years ago
2 divided to 28 with remainder
iris [78.8K]

Answer: it is 14  thanks to the other person

Step-by-step explanation:

8 0
2 years ago
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(50 POINTS!!!) find the total surface area and volume, then multiply by $0.004. please show your work!!
mrs_skeptik [129]

The Total surface area of the square pyramid = 115.2 in.²

The Volume of the square pyramid = 1,024 in.³.

<h3>What is the Total Surface Area of a Square Pyramid?</h3>

The total surface are of a square pyramid is given as: TSA = SA = 1/2(P × l), where:

P = perimeter of the square base

l = slant height of the pyramid

<h3>What is the Volume of a Square Pyramid?</h3>

The volume of a square pyramid = 1/3(a³ × h), where:

a = edge of the square base

h = height of the pyramid

Find the Total surface area of the Pyramid:

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l = 7.2 in.

Total surface area of the square pyramid = 1/2(32 × 7.2)

Total surface area of the square pyramid = 115.2 in.²

Volume of the square pyramid:

a = 8 in.

h = 6 in.

Volume of the square pyramid = 1/3(8³ × 6)

Volume of the square pyramid = 1,024 in.³

Learn more about the square pyramid on:

brainly.com/question/3688277

#SPJ1

6 0
2 years ago
33 1/3 of 21 (finding the percent of a number)
iragen [17]
<span>33% of 21=6.93 i think this is the answer</span>
5 0
3 years ago
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