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olya-2409 [2.1K]
2 years ago
13

Help , i need this assignment don asap

Mathematics
2 answers:
Yakvenalex [24]2 years ago
8 0

Answer:

I think it's 17/28 but I don't knkw

Anarel [89]2 years ago
8 0
What grade are you in ? I think ik what this is
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:Sarah and bryan went shopping and spent a total of 47:50. bryan spent 15.50 less than what sarah spent. How much did bryan spen
Elena L [17]

Answer:

its 32.00

Step-by-step explanation:

47.50

-15.50

---------

32.00

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3 years ago
Click on the least amount of rainfall.
Andreas93 [3]

The least amount is the smallest amount, 1/8.

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The total bill for a dinner party
melamori03 [73]

Answer:


Step-by-step explanation:

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6 0
3 years ago
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Suppose a spherical balloon grows in such a way that after t seconds, its volume is V = 4 sqrt(t) cm3. What is the volume of the
Arisa [49]
:<span>  </span><span>You need to know the derivative of the sqrt function. Remember that sqrt(x) = x^(1/2), and that (d x^a)/(dx) = a x^(a-1). So (d sqrt(x))/(dx) = (d x^(1/2))/(dx) = (1/2) x^((1/2)-1) = (1/2) x^(-1/2) = 1/(2 x^(1/2)) = 1/(2 sqrt(x)). 

There is a subtle shift in meaning in the use of t. If you say "after t seconds", t is a dimensionless quantity, such as 169. Also in the formula V = 4 sqrt(t) cm3, t is apparently dimensionless. But if you say "t = 169 seconds", t has dimension time, measured in the unit of seconds, and also expressing speed of change of V as (dV)/(dt) presupposes that t has dimension time. But you can't mix formulas in which t is dimensionless with formulas in which t is dimensioned. 

Below I treat t as being dimensionless. So where t is supposed to stand for time I write "t seconds" instead of just "t".

Then (dV)/(d(t seconds)) = (d 4 sqrt(t))/(dt) cm3/s = 4 (d sqrt(t))/(dt) cm3/s = 4 / (2 sqrt(t)) cm3/s = 2 / (sqrt(t)) cm3/s. 

Plugging in t = 169 gives 2/13 cm3/s.</span>
4 0
3 years ago
Can you please tell me the answer ​
KiRa [710]
Can you show the whole question?
8 0
2 years ago
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