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
GenaCL600 [577]
4 years ago
8

100 POINTS QUESTION ON ATTACHMENT

Mathematics
2 answers:
Nadya [2.5K]4 years ago
7 0

Answer:

D

Step-by-step explanation:

Vlada [557]4 years ago
3 0

Answer:

the answer is d because you have to follow the order of operations.

Step-by-step explanation:

You might be interested in
→ PLEASE HELP ME! [99 POINTS] ←
zaharov [31]
B.

The cost for x children and y adults to go to the movies if adult tickets are $11 and child tickets are $6.

Example 3 children and 2 adults ( 6(3) + 11(2) )
5 0
4 years ago
Read 2 more answers
If two sides in one triangle are 9 and 21 , then the third side might be
slamgirl [31]

Answer:

13

Step-by-step explanation:

there is a rule that says that if you add any 2 sides, it should be more than the third. 9+21 is greater than 13. 21+13 is greater than 9. 13 is the only number which if you add 9 to it it will be greater than 21. 12 will equal 21, but it still wont work.

hope this helps :))

7 0
2 years ago
So if a video that is 15:34 how long is it when 2 times speed
rusak2 [61]

Answer:

7:47

Step-by-step explanation:

Here are two ways of solving this:

The video will be half the time of 15:34, so you need to divide the time 15:34 by 2.

Method 1)

Use the tip. The video is 15 minutes and 34 seconds long.

Convert minutes to seconds: 15 * 60 = 900

Add 34 seconds to the 15 minutes: 900 seconds + 34 seconds = 934 seconds

The video is 934 seconds long.

Divide the total seconds by 2: 934/2 = 467

467 seconds = 420 seconds + 47 seconds = 7 minutes and 47 seconds

Answer: 7:47

Method 2)

Divide the minutes by 2 and divide the seconds by 2.

15 minutes and 34 seconds.

Divide minutes by 2: 15/2 = 7.5

Divide seconds by 2: 34/2 = 17

Now we need to add 7.5 minutes and 34 seconds.

0.5 minutes is half a minute, so it's 30 seconds.

7.5 minutes + 17 seconds =

= 7 minutes + 0.5 minute + 17 seconds

= 7 minutes + 30 seconds + 17 seconds

= 7 minutes + 47 seconds

= 7:47

Answer: 7:47

6 0
3 years ago
What is the number 0.000706 written in scientific notation?
Alex17521 [72]

Answer:

7.6 x 10^-4

Step-by-step explanation:

5 0
3 years ago
The boundary of a lamina consists of the semicircles y = 1 − x2 and y = 16 − x2 together with the portions of the x-axis that jo
oksano4ka [1.4K]

Answer:

Required center of mass (\bar{x},\bar{y})=(\frac{2}{\pi},0)

Step-by-step explanation:

Given semcircles are,

y=\sqrt{1-x^2}, y=\sqrt{16-x^2} whose radious are 1 and 4 respectively.

To find center of mass, (\bar{x},\bar{y}), let density at any point is \rho and distance from the origin is r be such that,

\rho=\frac{k}{r} where k is a constant.

Mass of the lamina=m=\int\int_{D}\rho dA where A is the total region and D is curves.

then,

m=\int\int_{D}\rho dA=\int_{0}^{\pi}\int_{1}^{4}\frac{k}{r}rdrd\theta=k\int_{}^{}(4-1)d\theta=3\pi k

  • Now, x-coordinate of center of mass is \bar{y}=\frac{M_x}{m}. in polar coordinate y=r\sin\theta

\therefore M_x=\int_{0}^{\pi}\int_{1}^{4}x\rho(x,y)dA

=\int_{0}^{\pi}\int_{1}^{4}\frac{k}{r}(r)\sin\theta)rdrd\theta

=k\int_{0}^{\pi}\int_{1}^{4}r\sin\thetadrd\theta

=3k\int_{0}^{\pi}\sin\theta d\theta

=3k\big[-\cos\theta\big]_{0}^{\pi}

=3k\big[-\cos\pi+\cos 0\big]

=6k

Then, \bar{y}=\frac{M_x}{m}=\frac{2}{\pi}

  • y-coordinate of center of mass is \bar{x}=\frac{M_y}{m}. in polar coordinate x=r\cos\theta

\therefore M_y=\int_{0}^{\pi}\int_{1}^{4}x\rho(x,y)dA

=\int_{0}^{\pi}\int_{1}^{4}\frac{k}{r}(r)\cos\theta)rdrd\theta

=k\int_{0}^{\pi}\int_{1}^{4}r\cos\theta drd\theta

=3k\int_{0}^{\pi}\cos\theta d\theta

=3k\big[\sin\theta\big]_{0}^{\pi}

=3k\big[\sin\pi-\sin 0\big]

=0

Then, \bar{x}=\frac{M_y}{m}=0

Hence center of mass (\bar{x},\bar{y})=(\frac{2}{\pi},0)

3 0
3 years ago
Other questions:
  • The product of a rational and irrational number is rational
    11·2 answers
  • Order these numbers from least to greatest.<br> 171/20 8 7/11 7.549 8.59
    14·2 answers
  • The Point located at open ( 3, –1 ) is reflected across the y-axis what are the coordinates of the reflected point
    9·1 answer
  • How many square feet are there in 3 1/2 Acres
    8·2 answers
  • In the figure below, AB is a diameter of circle P.
    8·1 answer
  • On this day last year we got 14 inches of snow. This year we got 2 inches. What is the percent of change and is it an increase o
    8·1 answer
  • Please helps, no links or i will report
    8·1 answer
  • The Future Government Club wants to sponsor a panel discussion on the upcoming national election. The club wants four of its mem
    11·1 answer
  • (PLEASE HELP) The height of a plants increase in the ratio 4 : 6. The height at present is 280 cm, what is new height?
    9·1 answer
  • What do you get when you combine the following numbers? -4-4-4-4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!