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4 years ago

Danae paints the front and back of a door

Mathematics

1 answer:

beks73 [17]4 years ago

5 0

Answer: 2686 feet squared, you would do “79x34”

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A silo is to be built by attaching a hemisphere roof onto a circular cylinder. The hemisphere part of the silo is constructed by

crimeas [40]

The radius and height, in two decimal places are mathematically given as

r=10.60

<h3>What is the radius and height, in two decimal places?</h3>

Generally, the equation for the volume is mathematically given as

$V=\pi r^{2} h+\frac{2}{3} \pi r^{3}$

Therefore

$5000 &=\pi 0^{2} h+\frac{2}{3} \pi r^{3}$

$V(r, h) &=\pi r^{2} h+\frac{2}{3} \pi r^{3}-5000 \\\nabla V &=\left\langle 2 \pi r h+2 \pi r^{2}, \pi r^{2}\right\rangle \\$

$\cos t &=100\left(2 \pi r^{2}\right)+75(2 \pi r h) \\\\\cos t &=200 \pi r^{2}+150 \pi r h \\\\\nabla C(r, h) &=\langle 400 \pi r+150 \pi h, 150 \pi r\rangle$

Using Lagrange method

$\langle 400 \pi \gamma+150 \pi \gamma h, 150 \pi \gamma\rangle=\lambda\left\langle 2 \pi \gamma h+2 \pi \gamma^{2}, \pi r^{2}\right\rangle$

$400 \pi r+150 \pi r=\left(2 \pi r h+2 \pi r^{2}\right) \lambda$

$$400 \pi \gamma+150 \pi h=300 \pi h+300 \pi r \\\\$

$400 \pi r-300 \pi r=150 \pi h$

$$160 \pi r=150 \pi h \quad \\\\\\$

with

$h=\frac{2}{3} r $$

$\pi r^{2} h+\frac{2}{3} \pi r^{3}=5000$

$\pi r}\left(\frac{2}{3} r \right)+\frac{2}{3} \pi^{3}=5000$$

$$\frac{4 \pi \gamma^{3}}{3}=5000 \quad$

$r^{3}=\left(\frac{5000 \times 3}{4 \pi}\right)$$

r=10.60

In conclusion, the radius and height, in two decimal places is

r=10.60

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8 0

2 years ago

if the federal reserve sells 50,000in treasury bonds to a bank at 6% interest ,what is the immediate effect on the money supply

Vitek1552 [10]

Answer:

if the federal reserve sells 50,000 in treasury bonds to a bank at 6% interest, the immediate effect on the money supply would be; the money supply would decrease by $50,000

Step-by-step explanation:

if the federal reserve sells 50,000 in treasury bonds to a bank at 6% interest, the immediate effect on the money supply would be; the money supply would decrease by $50,000.

The $50,000 will be transferred to the federal reserves and thus not available to be borrowed by the public.

8 0

3 years ago

How do I round 3.8129 to 3 decimal places?Please help!!!

Scilla [17]

$3.8129\\\\Since\ the\ fourth\ place\ is\ 5\ or\ more\ (here\ it's\ 9),\\the\ third\ place\ is\ increased\ by\ 1.\\\\Answer:3.8129\approx3.813$