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3 years ago

Unit 11: volume & surface area homework 7: volume of prisms & cylinders

Mathematics

1 answer:

JulijaS [17]3 years ago

4 0

Answer:

what

Step-by-step explanation:

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Noaya read a book cover to cover in a single session, at a rate of 55 pages per hour. After 4 hours, he had 350 pages left to re

natali 33 [55]

Answer:

55 pages/hour

350 - 55x = y

6 0

4 years ago

Rachel and her cousin Lena live in different cities about 100 miles apart.On the map the two cities measure 5 inches apart . Wha

Ostrovityanka [42]

On her map 1 inch is equal to 20 miles.

5x=100

divide both sides by 5

x=20

5 is for the 5 inches.
x is for the unknown.
100 is the 100 miles between the cities.

So the scale 1:20

7 0

4 years ago

Read 2 more answers

Calculus 3 chapter 16

o-na [289]

Evaluate $\vec F$ at $\vec r$ :

$\vec F(x,y,z) = x\,\vec\imath + y\,\vec\jmath + xy\,\vec k \\\\ \implies \vec F(\vec r(t)) = \vec F(\cos(t), \sin(t), t) = \cos(t)\,\vec\imath + \sin(t)\,\vec\jmath + \sin(t)\cos(t)\,\vec k$

Compute the line element $d\vec r$ :

$d\vec r = \dfrac{d\vec r}{dt} dt = \left(-\sin(t)\,\vec\imath+\cos(t)\,\vec\jmath+\vec k\bigg) \, dt$

Simplifying the integrand, we have

$\vec F\cdot d\vec r = \bigg(-\cos(t)\sin(t) + \sin(t)\cos(t) + \sin(t)\cos(t)\bigg) \, dt \\ ~~~~~~~~= \sin(t)\cos(t) \, dt \\\\ ~~~~~~~~= \dfrac12 \sin(2t) \, dt$

Then the line integral evaluates to

$\displaystyle \int_C \vec F\cdot d\vec r = \int_0^\pi \frac12\sin(2t)\,dt \\\\ ~~~~~~~~ = -\frac14\cos(2t) \bigg|_{t=0}^{t=\pi} \\\\ ~~~~~~~~ = -\frac14(\cos(2\pi)-\cos(0)) = \boxed{0}$

3 0

2 years ago

By weight, one fertilizer is 10% potassium, 40% nitrogen, and 50% phosphorus. A second fertilizer has percent of 10, 20, and 70,

irina [24]

Answer:

I dont know

Step-by-step explanation:

4 0

3 years ago

A parallelogram has a base of 16 centimeters and a height of 4 centimeters

jasenka [17]

Answer:

Area = 64 cm²

Step-by-step explanation:

The area of a parallelogram is found by using the formula A = b x h

Where A is the area, b is the base and h is the height

A = 16 x 4

A = 64

4 0

3 years ago