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Anna35 [415]
3 years ago
15

What is the perimeter of the rectangle?

Mathematics
2 answers:
UkoKoshka [18]3 years ago
6 0
B. Because 5 t 5 t 4 t 4 equals 18
Sedbober [7]3 years ago
5 0
The answer is B:18 units
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A scuba diver dives 243 feet into the ocean and then swims up 156
wariber [46]

Answer:

Her final position would stop at -87.

Step-by-step explanation:

As she dove 243 feet into the ocean, that means she went down. Therefore she's currently at -243, however she swam up 156 feet ending her up at -87. If that was kinda complicated, then use -243+156 and you'll get -87.

6 0
2 years ago
If the volume of a sphere is 36pi cubic units, what is the radius?
prisoha [69]
The radius is about 2.05
6 0
3 years ago
Read 2 more answers
Find the average value of the function f(x, y, z) = 5x2z 5y2z over the region enclosed by the paraboloid z = 9 − x2 − y2 and the
Katyanochek1 [597]
The paraboloid meets the x-y plane when x²+y²=9. A circle of radius 3, centre origin. 

<span>Use cylindrical coordinates (r,θ,z) so paraboloid becomes z = 9−r² and f = 5r²z. </span>

<span>If F is the mean of f over the region R then F ∫ (R)dV = ∫ (R)fdV </span>

<span>∫ (R)dV = ∫∫∫ [θ=0,2π, r=0,3, z=0,9−r²] rdrdθdz </span>

<span>= ∫∫ [θ=0,2π, r=0,3] r(9−r²)drdθ = ∫ [θ=0,2π] { (9/2)3² − (1/4)3⁴} dθ = 81π/2 </span>


<span>∫ (R)fdV = ∫∫∫ [θ=0,2π, r=0,3, z=0,9−r²] 5r²z.rdrdθdz </span>

<span>= 5∫∫ [θ=0,2π, r=0,3] ½r³{ (9−r²)² − 0 } drdθ </span>

<span>= (5/2)∫∫ [θ=0,2π, r=0,3] { 81r³ − 18r⁵ + r⁷} drdθ </span>

<span>= (5/2)∫ [θ=0,2π] { (81/4)3⁴− (3)3⁶+ (1/8)3⁸} dθ = 10935π/8 </span>

<span>∴ F = 10935π/8 ÷ 81π/2 = 135/4</span>
4 0
3 years ago
Need Help PLZ!!!!!!!!!!!!
d1i1m1o1n [39]

The answer is A. Because you can’t lose the amount of steps you took.

4 0
3 years ago
The function y=f(x) is graphed below. Plot a line segment connecting the the points on f where x=5 and x=7. Use the line segment
aksik [14]

Answer: average y = -8 average y =2

ARC : -4

Step-by-step explanation:

8 0
3 years ago
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