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
andrezito [222]
3 years ago
9

What is 2 1/2 ft × 3 1/2 ft

Mathematics
2 answers:
vredina [299]3 years ago
5 0
1 1/2

Hoped this helps! Mark as branliest if possible!
AlekseyPX3 years ago
3 0
Seventeen and a half, sry my number pad isn't working
You might be interested in
The volume of a sphere is 562.51 in? How many inches are in the radius of the sphere?
olya-2409 [2.1K]

Answer:C

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST! the sum of seven consecutive integers is zero. what is the value of the smallest integer?
kati45 [8]

Answer:

-3

Step-by-step explanation:

x + (x+1) +(x+2)+(x+3)+(x+4)+(x+5)+(x+6) = 0

7x + 21 = 0

x = -3

7 0
3 years ago
The Student Monitor surveys 1200 undergraduates from 100 colleges semiannually to understand trends among college students. Rece
nlexa [21]

Answer:

A sample size of 385 is needed.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1 - \alpha.

That is z with a pvalue of 1 - 0.025 = 0.975, so Z = 1.96.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

You feel that a reasonable estimate of the standard deviation is 10.0 hours.

This means that \sigma = 10

What sample size is needed so that the expected margin of error of your estimate is not larger than one hour for 95% confidence?

A sample size of n is needed. n is found when M = 1. So

M = z\frac{\sigma}{\sqrt{n}}

1 = 1.96\frac{10}{\sqrt{n}}

\sqrt{n} = 1.96*10

(\sqrt{n})^2 = (1.96*10)^2

n = 384.16

Rounding up:

A sample size of 385 is needed.

7 0
3 years ago
The area of a rectangle is 56 square yards. Its length is 2 yards more than three times its width. Find its dimensions
Mandarinka [93]
Its a quadratic. Since x cant be a negative number i used the x=4 answer to plug into the length and width

6 0
2 years ago
How many solutions does this system have?
zhenek [66]

Answer:

A. None

General Formulas and Concepts:

<u>Algebra I</u>

  • Perpendicular Lines/Intersecting Lines have 1 solution.
  • 2 identical Lines have infinitely many solutions.
  • Parallel Lines have no solution.

Step-by-step explanation:

According to the graph, we see that we have 2 parallel lines. Therefore, there will be no solution.

5 0
3 years ago
Other questions:
  • HELP!!!!!
    10·1 answer
  • What function do you know from calculus is such that its first derivative is a constant multiple k of itself
    8·1 answer
  • Which of the following steps were applied to ABC obtain A’B’C’?
    9·1 answer
  • Bob, Celia, Sam and Daniel gave money to buy their boss a retirement gift. Sam and Daniel each gave the same amount of money. Ce
    7·1 answer
  • Sketch the graph of each rational function showing all the key features. Verify your graph by graphing the function on
    11·1 answer
  • You have been saving money to buy a new pair of shoes. Three different stores are having sales on them. Which store has the best
    7·1 answer
  • 210 students were asked whether they want to go to a water park or a roller skating rink for a class party. 50 students are girl
    11·1 answer
  • Help confused on what to do
    6·1 answer
  • The points are (-2,3) and (6,r) lie in a line with slope (3/2). find the missing coordinate
    13·1 answer
  • Add or subtract each fraction and write it as a decimal in simplest form
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!