3 years ago

At the concession stand, a bag

Mathematics

1 answer:

OverLord2011 [107]3 years ago

4 0

Answer:

$1.00 because .75 plus .25 equals 100 and 100 is equal to 1.00

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3,450 ÷ ___________ = 3.45

Alex_Xolod [135]

Answer:

1000

Step-by-step explanation:

3,450/3.45=1000

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3 years ago

How do you convert 16.2 km to m

mojhsa [17]

Remember that 1 kilometer is equivalent to 1000 meters, so for this just multiply 16.2 by 1000, and your answer will be $16.2\ \textsf{km}=16,200\ \textsf{m}$ 

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3 years ago

Find, correct to four decimal places, the length of the curve of intersection of the cylinder 4x2 + y2 = 4 and the plane x + y +

kolbaska11 [484]

$4x^2+y^2=4\iff x^2+\left(\dfrac y2\right)^2=1$
$x+y+z=9\iff z=9-x-y$

Let $x=\cos t$ and $y=2\sin t$ . Then the cylinder is given when we take $0\le t\le2\pi$ .

The cylinder's equation is independent of $z$ , which means the intersection is completely determined by the value of $z$ in the plane equation. So the intersection can be described by the vector function $\mathbf r(t)=\langle\cos t,2\sin t,9-\cos t-2\sin t\rangle$ .

The length of the intersection curve $C$ is given by the line integral

$\displaystyle\int_C\mathrm d\mathbf r=\int_{t=0}^{t=2\pi}\|\mathbf r'(t)\|\,\mathrm dt$
$=\displaystyle\int_0^{2\pi}\sqrt{\cos^2t+4\sin^2t+(9-\cos t-2\sin t)^2}\,\mathrm dt$
$\approx57.4449$

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3 years ago

Candy is at the balloon shop and sees that 10 balloons cost $0.15. He needs 50 balloons to decorate his room. How much will 50 b

bazaltina [42]

They will have to pay $7.50. And you just multiply 0.15 times 50.

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4 years ago

Read 2 more answers

Simplify this expression. 8g^3h^3/ 24g Enter the correct answer.

Naddika [18.5K]

Answer: (g^2 h^3) / 3

Step-by-step explanation: