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ArbitrLikvidat [17]
2 years ago
8

A rectangular prism with a length of 14 meters, width of 5 meters, and height of 4.5 meters. A square pyramid with a base of 8 f

eet by 8 feet and height of 6 feet.
Find the volumes of the three-dimensional figures.

Rectangular prism:

Pyramid:

Mathematics
2 answers:
mixer [17]2 years ago
8 0
There are two answers first is 315 and then 128
velikii [3]2 years ago
6 0

Answer: The rectangular prism is 315m^3 and the pyramid is 128ft^3

Step-by-step explanation:

Volume of a rectangular prism = length times width times height

Volume of a square pyramid = a^2 times height/3

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devlian [24]

Answer:

y=x+2

Step-by-step explanation:

y-y1=m(x-x1)

y-2=1(x-0)

y-2=1(x)

y-2=x

y=x+2

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3 years ago
Fractional form of 0.8
Vika [28.1K]

Answer:

8/10

Step-by-step explanation:

6 0
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Apply Gaussian quadrature with n = 4 to approximate integrate sin x^2dx from 1 to 5
maks197457 [2]
First, recall that Gaussian quadrature is based around integrating a function over the interval [-1,1], so transform the function argument accordingly to change the integral over [1,5] to an equivalent one over [-1,1].

x=2t+3\iff t=\dfrac x2-\dfrac32\implies2\mathrm dt=\mathrm dx
x=1\implies t=\dfrac{2-6}4=-1
x=5\implies t=\dfrac{10-6}4=1

So,

\displaystyle\int_{x=1}^{x=5}\sin x^2\,\mathrm dx=\displaystyle2\int_{t=-1}^{t=1}\sin(2t+3)^2\,\mathrm dt

Let f(t)=2\sin(2t+3)^2. With n=4, we're looking for coefficients c_i and nodes x_i, with 1\le i\le4, such that

\displaystyle\int_{-1}^1f(t)\,\mathrm dt\approx c_1f(x_1)+\cdots+c_4f(x_4)

You can either try solving for each with the help of a calculator, or look up the values of the weights and nodes (they're extensively tabulated, and I'll include a link to one such reference).

Using the quadrature, we then have

\displaystyle\int_{-1}^1f(t)\,\mathrm dt\approx0.3749f(-0.8611)+0.6521f(-0.3400)+0.6521f(0.3400)+0.3749f-0.8611)
\displaystyle\int_{-1}^1f(t)\,\mathrm dt\approx0.5790
4 0
3 years ago
There are 1500 bees in a colony. Each month, the number of bees decreases by 12%. There are 800 flowering plants in a garden. Ea
dusya [7]
 So the answer to this question is:

A= bees: f(t) = 1500 × (0.88)∧t

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B: (Bees) 1500 × (0.88)∧6= 696.60
After 6 months (696 bees ):
800 - 25×6 = 650 (Flowering Plants)
After 6 months:

650 flowering plants

C: 1500 × (0.88)∧t=800 - 25×t
t = 6.779965672

Answer is it will take 7 months or 6 for the bees and the plants.
Hope this helps!

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After 2 hours, there were 10 puppies available for adoption. After 3 hours, there were 8 puppies available for adoption.After the 4th hour,there would be 6 puppies avaliable for adoption.After the 5th hour, there would be 4 puppies available for adoption.After the 6th hour,there would be 2 puppies available for adoption.
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