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3 years ago

What is the value of x?

Mathematics

1 answer:

gayaneshka [121]3 years ago

6 0

Find MA:

MA = 67.2-32 = 35.2

Now set up a ratio:

35.2/67.2 = x/81.9

Cross multiply:

67.2x = 2882.88

Divide both sides by 67.2:

X = 42.9

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The diameter of a cone is X cm the height is 18 cm mThe The height is 18 cm and the volume is 301.44 cm what is x

HACTEHA [7]

The volume of a cone is V=(1/3)(area of the base)(height)= (1/3)(pi*r^2)(h)
r^2= (d/2)^2 = (d^2)/4. Given: V= 301.44cm^3 and h= 18cm.
r^2= V/[(1/3)(pi)(h)]
r^2= 3V/(pi)(h)
(d^2)/4= 3(301.44)/(3.14)(18)
d^2= 12(301.44)/(3.14)(18)
d^2= 63.967
d= 7.997
d~= 8cm.

4 0

3 years ago

Whats 4.25 increased by 15%

Firlakuza [10]

You would turn the 15% into a decimal which is .15 then multiply .15 by 4.25. After multiplying those together add 4.25 to the answer.

5 0

3 years ago

Read 2 more answers

5a-3b+c+(4-5b-c) ayuda

JulsSmile [24]

La respuesta es 5a - 8b + 4

5 0

3 years ago

Write one pair of brackets in this calculation so that the answer is correct. 5 + 2 × 7 – 4 = 11

BartSMP [9]

Answer:

$5+2*(7-4) =11$

Step-by-step explanation:

This expression was kind of trial and error for me seeing as I'm not really good at logic, but this is pretty basic. There are three possible places the parentheses can be placed (assuming each pair holds 2 terms);

$(5+2)*7-4\\5+(2*7)-4\\5+2*(7-4)$

The answer to the first expression would be 45, which is not equal to 11.

The answer to the second expression would be 15, which is also not equal to 11.

The answer to the last expression is 11, so that is the correct answer.

Hope this helped :D

- Shay

5 0

3 years ago

Help with this please!!

kompoz [17]

Answer:

Positive hope it help :D

Step-by-step explanation:

Sorry if I’m not right :/

6 0

2 years ago