Answer:
13
Step-by-step explanation:
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Answer: 61-24[5
Step-by-step explanation:
Going to use [ as a sq rt
(3[5-4)(3[5-4)
3[5 times 3[5 = 9[25 which is 9 times 5=45
3[5 times -4 = -12[5
-4 times 3[5 = -12[5
-4 times -4 =16
Which is 61-24[5
To obtain the equation for an elliptical region, we divide the boundary curve equation by 36, which gives us:
<span>[9x^2 + 4y^2 = 36] / 36
(x^2)/4 + (y^2)/9 = 1
Since the given cross-sections are isosceles right triangles, the hypotenuse is found on the base. Using trigonometric functions, the hypotenuse is found to be 6 * sqrt(1 - (x^2)/4). The cross-sectional area is then found to be 9 (1 - (x^2)/4).
With the cross-section, we integrate it with limits of -2 to 2 in terms of x to find the volume. This is shown below:
</span><span>
∫ </span>9 (1 - (x^2)/4<span>) dx (-2,2) = 24
Therefore, the volume is 24 units^3.</span>
Answer:
3460 m
Step-by-step explanation:
There are 1000 meters in a kilometer and since Doreen walks 3.46 km, she must walk 3460 m.
3.46 x 1000 = 3460