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
ss7ja [257]
2 years ago
14

45 popcorn kernels pop in the microwave in 3 seconds, how long will it take for a bag of 220 kernels to pop completely?

Mathematics
1 answer:
Papessa [141]2 years ago
4 0

Answer:

14.4 Seconds

Step-by-step explanation:

220 divided by 4 is 4.8

4.8 times 3 is 14.4

You might be interested in
W is 80%of y. How many singers were there
sergey [27]
Where did you get the singers from? And what does 80% of y have to do with singers?
7 0
3 years ago
In a Gallup poll, 1025 randomly selected adults were surveyed and 29% of them said that they used the Internet for shopping at l
svetoff [14.1K]

Answer:   (0.25,0.33)

Step-by-step explanation:

A 99% confidence interval for population proportion is given by:-

\hat{p}\pm 2.576\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}, where \hat{p} = sample proportion, n = sample size.

Given: n=1025, \hat{p}=0.29

A 99% confidence interval estimate of the proportion of adults who use the Internet for shopping:

0.29\pm 2.576\sqrt{\dfrac{0.29(1-0.29)}{1025}}\\\\=0.29\pm 2.576\sqrt{0.00020087804878}\\\\=0.29\pm2.576(0.01417)\\\\=0.29\pm0.03650192\\\\=(0.29-0.03650192,\ 0.29+0.03650192)\\\\=(0.25349808,\ 0.32650192)

\approx(0.25,\ 0.33)

Thus, a 99% confidence interval estimate of the proportion of adults who use the Internet for shopping = (0.25,0.33)

5 0
3 years ago
Please help me with this question and explain it
Stells [14]

Answer:

(1, 1)

Step-by-step explanation:

Multiply x and y by 0.25 to find the new coordinates after dilation

6 0
3 years ago
What is 1189^2 x 1809
Trava [24]

Answer:

the answer is : 2557421289

8 0
3 years ago
Read 2 more answers
Write the equation of a line perpendicular to 2x + 3y = 4 and passing through (-3,-5).
Tasya [4]

Answer:

Step-by-step explanation:

A line perpendicular to the given line has a slope that is the negative inverse of the reference line.  

Rewrite the given equation in the format of y=mx+b, where mi is the slope and b is the y-intercept (the value of y when x = 0.

2x + 3y = 4

3y=-2x+4

y = -(2/3)X + (4/3)

The reference slope is -(2/3).  The negative inverse is (3/2), which will be the slope of a perpendicular line.  We can write the new line as:

y = (3/2)x + b

Any value of b will still result in a line that is perpendicular.  But we want a value of b that will shift the line so that it intersects the point (-3,-5).  Simply enter this point in the above equation and solve for b.

y = (3/2)x + b

-5 = (3/2)(-3) + b

-5 = -(9/2) + b

-5 = -4.5 + b

b = - 0.5

The equation of the line that is perpendicular to 2x + 3y = 4 and includes point (-3,-5) is

y = (3/2)x - 0.5

6 0
1 year ago
Other questions:
  • Round to the nearest hundredth 0.633
    14·2 answers
  • Does the equation represent a direct variation? If so, find the constant of variation.
    7·1 answer
  • Triangle MNP is the image of triangle JKL after a 120 degrees counterclockwise rotation about point Q. If the measure of angle L
    7·1 answer
  • 5+ (9.7 - b ) =6.8 what is the value of b
    6·1 answer
  • The ratio of boy to girls in a class is 3 : 2. There are 15 boys in the class. How many total boys and girls are in the class?
    7·2 answers
  • The angular velocity of a fan blade is 4.6 radians per second.
    7·2 answers
  • Surface area &amp; volume<br><br>Need some help please
    15·1 answer
  • What is the additive inverse of 4x
    10·2 answers
  • The Stahl family bought some new camping gear at REI that totaled $348.25. If they receive a 25% discount, how much did they sav
    13·1 answer
  • You begin with $20 in a savings account and $100 in a checking account. Each week you deposit $20 into savings and $10 into chec
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!