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
EastWind [94]
4 years ago
12

2 1\4 - 3\4 it for my little sister

Mathematics
1 answer:
professor190 [17]4 years ago
3 0

Answer:

1 2/4 or 1 2/4

Step-by-step explanation:

convert 2 1/4 into an improper fraction.

9/4-3/4=6/4

make 6/4 into a mixed number.

1 2/4

simplify

1 1/2

You might be interested in
The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a standard deviation of 4.2 mi
dangina [55]

Answer:

A.0.4477

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 16.3, \sigma = 4.2

What is the probability that a randomly selected exam will require between 14 and 19 minutes to​ grade?

This probability is the pvalue of Z when X = 19 subtracted by the pvalue of Z when X = 14. So

X = 19

Z = \frac{X - \mu}{\sigma}

Z = \frac{19 - 16.3}{4.2}

Z = 0.64

Z = 0.64 has a pvalue of 0.7389.

X = 14

Z = \frac{X - \mu}{\sigma}

Z = \frac{14 - 16.3}{4.2}

Z = -0.55

Z = -0.55 has a pvalue of 0.2912

0.7389 - 0.2912 = 0.4477

So the correct answer is:

A.0.4477

7 0
3 years ago
HELP HELP HELP HELP HELLPP
Veronika [31]
The rectangular prism has the greatest volume

Rectangular Prism Volume= 72
Triangular Prism Volume = 70

Volume formulas:
(R.Prism) V=l•w•h
(T. Prism) V= b•h

Work:
(R.Prism)

V= 4•6•3
V= 72

(T.Prism)

V= (1/2•4•5)(7)
V= 70

Hope this helps
4 0
3 years ago
Witch one is greater
d1i1m1o1n [39]
Lance it incorrect. Even though there are more decimal places .5 is always larger than .4
5 0
4 years ago
(-0.3) + 0.9 find the sum
IceJOKER [234]

Answer: (-0.3) + 0.9= 0.6


Step-by-step explanation:


3 0
4 years ago
Read 2 more answers
H ELP!!!
klemol [59]
De donde está no debes a gente não tem como você me llamo Marta não tem como você me llamo Marta e o que
4 0
4 years ago
Read 2 more answers
Other questions:
  • Plotting points for y=5x+4
    14·1 answer
  • Which equation is graphed here?
    13·2 answers
  • Find the required annual interest rate to the nearest tenth of a percent for $1,400 to grow to $1,800 if interest is compounded
    10·2 answers
  • Help I have no clue please I just don't get it
    6·2 answers
  • What value of x makes the equation 3(x-6) -8 = -2+5(2x+1
    13·1 answer
  • Anna earns 50 points every time she shops at a grocery store. She needs a total of 3,470 points to receive a free prize. So far
    6·2 answers
  • Please help somebody
    7·1 answer
  • How do you label an angle
    14·1 answer
  • a stockbroker charges customers $30 to open an account and $15 per month to manage the account. write an equation to represent t
    11·1 answer
  • Find all angles, 0≤θ<360, that satisfy the equation below, to the nearest 10th of a degree.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!