1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sphinxa [80]
3 years ago
10

Sharon read a 300-page book. She read at a rate of 15 pages per day in d days. Write an equation to describe this situation.​

Mathematics
1 answer:
777dan777 [17]3 years ago
3 0

Answer:

300 ÷ 15 = D

D=20

You might be interested in
F = 1.8C + 32 what is c
zepelin [54]

Step-by-step explanation:

right.

and therefore c is in this case the name of the variable in the equation (or function).

add on.

ah, do you mean (and does this strange problem description mean) that you want the reverse formula : to get C out of F ?

in that case

F = 1.8c + 32 = 9/5 × c + 32

F - 32 = 9/5 × c

5/9 × (F - 32) = c

or

c = 5/9 × (F - 32)

that's it.

5 0
2 years ago
What is the area of the parallelogram? A parallelogram with a base of 14 centimeters and a height of 5 centimeters. 32 cm2 65 cm
Svetllana [295]

Answer:

70 cm2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the Least common multiple (LCM) of the denominators in the equation below?
xz_007 [3.2K]

Answer:

32

Step-by-step explanation:

because

32 : 32 =1

32 : 16 = 2

32 : 8 = 4

6 0
3 years ago
Max is thinking of a double fact. It has a sum greater than 10 but less than 13. What number fact could it be?
igor_vitrenko [27]
The answere would be 11 and 12
4 0
3 years ago
The intensity of light with wavelength λ traveling through a diffraction grating with N slits at an angle θ is given by I(θ) = N
Ymorist [56]

Answer:

0.007502795

Step-by-step explanation:

We have

N = 10,000

\bf d=10^{-4}

\bf \lambda = 632.8*10^{-9}

Replacing these values in the expression for k:

\bf k=\frac{\pi Ndsin\theta}{\lambda}=\frac{\pi10^4*10^{-4}sin\theta}{632.8*10^{-9}}=\frac{\pi 10^9sin\theta}{632.8}

So, the intensity is given by the function

\bf I(\theta)=\frac{N^2sin^2(k)}{k^2}=\frac{10^8sin^2(\frac{\pi 10^9sin\theta}{632.8})}{(\frac{\pi 10^9sin\theta}{632.8})^2}

The <em>total light intensity</em> is then

\bf \int_{-10^{-6}}^{10^{-6}} I(\theta)d\theta=\int_{-10^{-6}}^{10{-6}}\frac{10^8sin^2(\frac{\pi 10^9sin\theta}{632.8})}{(\frac{\pi 10^9sin\theta}{632.8})^2}d\theta

Since \bf I(\theta) is an <em>even function</em>

\bf \int_{-10^{-6}}^{10^{-6}} I(\theta)d\theta=2\int_{0}^{10^{-6}}I(\theta)d\theta

and we only have to divide the interval \bf [0,10^{-6}] in five equal sub-intervals \bf I_1,I_2,I_3,I_4,I_5 with midpoints \bf m_1,m_2,m_3,m_4,m_5

The sub-intervals and their midpoints are

\bf I_1=[0,\frac{10^{-6}}{5}]\;,m_1=10^{-5}\\I_2=[\frac{10^{-6}}{5},2\frac{10^{-6}}{5}]\;,m_2=3*10^{-5}\\I_3=[2\frac{10^{-6}}{5},3\frac{10^{-6}}{5}]\;,m_3=5*10^{-5}\\I_4=[3\frac{10^{-6}}{5},4\frac{10^{-6}}{5}]\;,m_4=7*10^{-5}\\I_5=[4\frac{10^{-6}}{5},10^{-6}]\;,m_5=9*10^{-5}

<em>By the midpoint rule</em>

\bf \int_{0}^{10^{-6}}I(\theta)d\theta\approx\frac{10^{-6}}{5}[I(m_1)+I(m_2)+...+I(m_5)]

computing the values of I:

\bf I(m_1)=I(10^{-5})=\frac{10^8sin^2(\frac{\pi 10^9sin(10^{-5})}{632.8})}{(\frac{\pi 10^9sin(10^{-5})}{632.8})^2}=13681.31478

\bf I(m_2)=I(3*10^{-5})=\frac{10^8sin^2(\frac{\pi 10^9sin(3*10^{-5})}{632.8})}{(\frac{\pi 10^9sin(3*10^{-5})}{632.8})^2}=4144.509447

Similarly with the help of a calculator or spreadsheet we find

\bf I(m_3)=3.09562973\\I(m_4)=716.7480066\\I(m_5)=211.3187228

and we have

\bf \int_{0}^{10^{-6}}I(\theta)d\theta\approx\frac{10^{-6}}{5}[I(m_1)+I(m_2)+...+I(m_5)]=\frac{10^{-6}}{5}(18756.98654)=0.003751395

Finally the the total light intensity

would be 2*0.003751395 = 0.007502795

8 0
3 years ago
Other questions:
  • I need help I don't know how to do it
    7·1 answer
  • PLEASE HELP 99 POINTS!
    9·2 answers
  • What is the difference between the mean and the median of the data set?
    14·1 answer
  • If an relationship is proportional what is the missing value from the table?​
    15·1 answer
  • Last week a pound of grapes cost $3. This week they are 12% more expensive.
    11·1 answer
  • Ill give brainliest if it’s quick!
    10·1 answer
  • Write the equation of a line that contains (2,−2) and perpendicular to another line with slope −1. (20 POINTS)
    5·1 answer
  • 1) (-11) + 15 =
    15·2 answers
  • A circle has a circumference of 1474 inches. What is the diameter of the circle
    13·2 answers
  • Ms. Crane has a jar with 6 white marblos, 4 red marbles, and 5 blue marbles. If
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!