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
blagie [28]
3 years ago
11

Janet completed this entire column of math homework in 10 minutes. How many seconds per question did Janet spend?

Mathematics
1 answer:
puteri [66]3 years ago
5 0

Answer:

Assuming that Janet spent an equal amount of time on each question, he would have spent 75 seconds on each question.

Step-by-step explanation:

10 minutes = 600 seconds

600 seconds / 8 questions = 75 seconds.

You might be interested in
Help with this math question please
Debora [2.8K]
Part 1: getting the area of the entrance
The entrance has a trapezoid shape.
Area of trapezoid can be calculated using the following rule:
Area of trapezoid = average base * height
The aveage base = (b1+b2)/2 = (8+16)/2 = 12 ft
height of trapezoid = 4 ft
Therefore:
area of entrance = 12*4 = 48 ft^2

Part 2: getting the area of the house:
area of house = area of back porch + area of side deck + area of play room + area of entrance
i- getting the area of the back porch:
The back porch is a square with side length = 6 ft
Therefore:
area of back porch = 6*6 = 36 ft^2
ii- getting the area of side deck:
The side deck is a rectangle whose length is 14 ft and width is 3 ft
Therefore:
area of side deck = 14*3 = 42 ft^2
iii- getting the area of play room:
The play room is a rectangle whose length is 14 ft and width is 16 ft
Therefore:
area of play room = 14*16 = 224 ft^2
iv- area of entrance is calculated in part 1 = 48 ft^2
Based on the above:
area of house = 36 + 42 + 224 + 48 = 350 ft^2

hope this helps :)
5 0
3 years ago
Write an equation passing through the point and perpendicular to the given line: (-3,5);y = 3/4x-4
balandron [24]

Hey!

So the first thing we realize is that it says that the equation is perpendicular to the line, meaning that the slope of the line is the negative reciprocal of the slope of the line you are given. Since we are given the slope of this line as 3/4 we can take the negative reciprocal of this to get -(4/3).

Now that we have the slope and a point on the line you can plug those into the equation y = mx + b to find b. The slope of the line is m and the point contains the x and y values.

5 = -(4/3)(-3) + b

5 = 4 + b

1 = b

Since we have the y-intercept and the slope now we can plug that into the slope-intercept form equation to get the equation we need:

y = -(4/3)x + 1

7 0
3 years ago
The purpose of statistical inference is to make estimates or draw conclusions about a.
Free_Kalibri [48]

<u>When we make estimates of or draw conclusions about one or more characteristics of a population based upon the </u><u>sample</u><u>, we are using the process of </u><u>statistical inference</u><u>.</u>

  • To estimate this sample to sample variance or uncertainty is the goal of statistical inference.

What is the purpose of statistical inferences ?

  • To be able to make inferences about a population based on data from a sample is the goal of statistical inference.
  • The process of statistical inference involves selecting a sample, gathering data from that sample, calculating a statistic from the data, and drawing conclusions about the population from that statistic.

How is statistical inference used to draw conclusions?

Estimation and hypothesis testing are components of statistical inference (evaluating a notion about a population using a sample) (estimating the value or potential range of values of some characteristic of the population based on that of a sample).

Learn more about statistical inference

brainly.com/question/3640262

#SPJ4

4 0
2 years ago
We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of
sergiy2304 [10]

Answer:

Margin of error = 0.773

Step-by-step explanation:

We are given the following information in the question.

Sample size, n = 20

Sample mean = 8

Sample standard deviation = 2

90% Confidence interval

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.729  

Margin of error:

t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

1.729(\frac{2}{\sqrt{20}} ) = 0.773  

7 0
3 years ago
What is the domain of Y = log2X?
pashok25 [27]

Answer:

All real numbers greater than 0

Step-by-step explanation:

When you look at   y = log (2)  x

Base 2,   exponent y.

x =  2^y

x  can only be a positive number.

7 0
3 years ago
Other questions:
  • Prevent as a decimal 21%
    12·1 answer
  • 45/28 is what in a mixed number??
    15·1 answer
  • What is the derivative of 4pi and why?
    10·1 answer
  • When building a house you have a choice of seven different floor plans two different exteriors and two different types of floori
    14·1 answer
  • In the diagram below, AB is parallel to CD. what is the value of x?
    8·1 answer
  • Simplify. 7²+2² A9 B53 C81 D94
    6·2 answers
  • Which is more, 8 yards or 287 inches?​
    9·2 answers
  • What is 3 1/3 as a percentage and a decimal? Thank you!!
    13·1 answer
  • Please help!! Thanks!
    9·2 answers
  • I really ned help on this, any answers?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!