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weqwewe [10]
2 years ago
13

6) A geologist collects rocks. He has three types, sedimentary, metamorphic and

Mathematics
1 answer:
rodikova [14]2 years ago
7 0

Answer:

3:5

Step-by-step explanation:

s:m = 2:3

m:i = 9:10

convert m to same number so they are comparable

s:m = 6:9   (multiple so the ratio is still the same as 2:3)

m:i = 9:10 (the same thing as before)

s:i = 6:10

s:i = 3:5 (simplify)

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FIRST CORRECT ANSWER WILL GET BRAINLIEST!!!
Mars2501 [29]
Their are 6 equilateral triangles in a regular hexagon:
The area of one triangle = (x²√3)/4, then:
1st answer: The area of the hexagon base: is  6 TIMES the area of one equilateral triangle [or, needed for 2nd, question, TOT AREA:(6x²√3)/4] = (3x²√3)/2] unit²

2nd answer: :
Volume of pyramid: (base area)(height)/3
Volume of pyramid: (3x²√3).(3x)/3 (because height = 3x, given)
Then Volume of pyramid= 3x³√3 unit³.
3 is the answer for the second question
and 6 for the 1st
4 0
4 years ago
The area of a pizza is 220 square centimeters .
Zanzabum
Area of pizza = pi × r^2
pi × r^2 = 220 Sq. cm
22/7 × r^2 =220
r^2 = 220 × 7/22
r^2 = 70
r = square root of 70
r = 8.36

therefore , radius of the pizza is 8.36 cm


(please do mark as brainliest)
7 0
3 years ago
Which expression is equivalent to 7h^2-252k^2?
gulaghasi [49]

Answer:

c

Step-by-step explanation:

252 = 7 *36

36 = 6 *6 = 6²

a² -b²  = (a + b)(a - b)

7h² - 252k² =  7(h² - 36k²)

                   = 7(h² - [6k]² )

                  = 7(h  +6k)(h - 6k)

6 0
3 years ago
Read 2 more answers
Which amount of money is possible for Katie to spend for pens and notebooks?
Degger [83]

Answer:

the answer the B

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the middle term of the product of (5a - 7)(2a - 1)?
rodikova [14]
(5a-7) (2a-1) = -19a
7 0
3 years ago
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