NEED HELP ASAP!!!

Mathematics

2 answers:

Liula [17]3 years ago

3 0

The answer is 84tt yd2

Klio2033 [76]3 years ago

3 0

You need 3 formulas for this problem.

area of rectangle = length × width
circumference =
$2\pi \times r$
area of circle =
$\pi \times {r}^{2}$

you use circumference to find length of rectangle so you can find the area of the rectangle and the add up th e area for the rectangle and both circles for surface area

$2\pi \times 3 = 18.84$
$18.84 \times 14 = 263.76$
$\pi \times {3}^{2} = 28.26$

$sa = 263.76 + 2(28.26) = 320.28$

320.28 ÷ 3.14 = 102tt yd^2

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boyakko [2]

Answer:

The first table

Step-by-step explanation:

the third and fourth table are incorrect because it says Jo bought 25 apples in total but in the third and fourth table there are 35 apples in total.

the second table is incorrect because it said three of the 12 large apples were red. In the second table its says 12 large apples when its supposed to say three and the total in 15 instead of 12.

3 0

3 years ago

Read 2 more answers

A tank contains 1600 L of pure water. Solution that contains 0.04 kg of sugar per liter enters the tank at the rate 2 L/min, and

goldfiish [28.3K]

Let S(t) denote the amount of sugar in the tank at time t. Sugar flows in at a rate of

(0.04 kg/L) * (2 L/min) = 0.08 kg/min = 8/100 kg/min

and flows out at a rate of

(S(t)/1600 kg/L) * (2 L/min) = S(t)/800 kg/min

Then the net flow rate is governed by the differential equation

$\dfrac{\mathrm dS(t)}{\mathrm dt}=\dfrac8{100}-\dfrac{S(t)}{800}$