3 years ago

What is the radius of the following circle

Mathematics

1 answer:

stepladder [879]3 years ago

4 0

I got 11.5 lol I don’t really know why

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Use differentials to estimate the amount of paint needed to apply a coat of paint 0.07 cm thick to a hemispherical dome with dia

Sav [38]

Answer:

10.12 $m^{3}$

Step-by-step explanation:

Given:

0.07 cm thick = 0.007m and it is dr (the change in radius)

As we know that, the volume of a hemispherical dome with diameter 48 m is:

V = $\frac{2}{3}$ π $r^{3}$

Take the derivative of V we have:

$\frac{dV}{dr}$ = 2π $r^{2}$

<=> dV = 2π $r^{2}$ *dr

<=> dV = 2π* $48^{2}$ *0.0007 = 10.12 $m^{3}$

Hope it will find you well.

6 0

3 years ago

Read 2 more answers

If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle Burns at 1/5 inch per hour after how many hours would both c

zavuch27 [327]

We must solve

$8 - \frac{7}{10}x = 6 - \frac{1}{5}x \\ or \\ 80 - 7x = 60 - 2x \\ now \\ 20 = 5x \: so \: x = 4 \\$
Means the candles will be the same size in 4 hours

8 0

3 years ago

HOW DO U COMBINE LIKE TERMS in math?? DO NOT LOOK IT UP :) THX

gayaneshka [121]

Answer:

See below

Step-by-step explanation:

"Like terms" are terms with the same variable or exponents.

You can add or subtract these just like you would with regular numbers.

Examples:

2x + 4x = 6x

5xy + 7xy = 12xy

6 $x^{2}$ + 5 $x^{2}$ = 11 $x^{2}$

Let me know if you need more examples or have any questions :)

6 0

3 years ago

What is the largest factor of 54,321 that is less than 54,321?

Reil [10]

Answer:smallest factor is 3

Largest factor is 18107

Step-by-step explanation:

54321 = 3x18107 = 3x19x953 ................Ans

5 0

3 years ago

Veronica has been saving dines and quarters. she has 94 coins in all and the total value is $19.30. How many dimes and quarters

Murrr4er [49]

D+q=94
.10d+.25q=19.30

7 0

3 years ago