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
prisoha [69]
3 years ago
11

Express 4 8/9 as an improper fraction A 36/9 B 21/9 C 44/9 D 40/9

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
8 0
The answer is c because 9×4=36 then add eight which equals 44. therefore, it is 44/9
You might be interested in
How many passwords of 4 digits are there(a)if none of the digits can be repeated?(b)start with 5 and end in an even digit?
liraira [26]

Answer:

5040,56

Step-by-step explanation:

We have to construct pass words of 4 digits

a) None of the digits can be repeated

We have total digits as 0 to 9.

4 digits can be selected form these 10 in 10P4 ways (since order matters in numbers)

No of passwords = 10P4

= 10(9)(8)(7)\\=5040

b) start with 5 and end in even digit

Here we restrain the choices by putting conditions

I digit is compulsorily 5 and hence only one way

Last digit can be any one of 0,2,4,6,8 hence 5 ways

Once first and last selected remaining 2 digits can be selected from remaining 8 digits in 8P2 ways (order counts here)

=56

3 0
3 years ago
What is the scale factor of 5mm:1cm
Goryan [66]
<span>
1 cm = 10mm

5 mm : 10mm : :1 : 2

hoped i helped. ^-^
</span>
5 0
3 years ago
Please help me!! Just help me solve
Kruka [31]
The solution for the system of equations are:
x =  \frac{7}{5} \\ y =  \frac{11}{5}
Attached is the graph of lines y=3x-2 and y=-2x+5.

4 0
3 years ago
One measure of an athlete’s ability is the height of his or her vertical leap. Many professional basketball players are known fo
almond37 [142]

Answer:

(1) P(\bar X < 26 inches) = 0.0436

(2) P(27.5 inches < \bar X < 28.5 inches) = 0.2812

Step-by-step explanation:

We are given that the mean vertical leap of all NBA players is 28 inches. Suppose the standard deviation is 7 inches and 36 NBA players are selected at random.

Firstly, Let \bar X = mean vertical leap for the 36 players

Assuming the data follows normal distribution; so the z score probability distribution for sample mean is given by;

            Z = \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \mu = population mean vertical  leap = 28 inches

            \sigma = standard deviation = 7 inches

            n = sample of NBA player = 36

(1) Probability that the mean vertical leap for the 36 players will be less than 26 inches is given by = P(\bar X < 26 inches)

   P(\bar X < 26) = P( \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } < \frac{26-28}{\frac{7}{\sqrt{36} } } ) = P(Z < -1.71) = 1 - P(Z \leq 1.71)

                                                 = 1 - 0.95637 = 0.0436

(2) <em>Now, here sample of NBA players is 26 so n = 26.</em>

Probability that the mean vertical leap for the 26 players will be between 27.5 and 28.5 inches is given by = P(27.5 inches < \bar X < 28.5 inches) = P(\bar X < 28.5 inches) - P(\bar X \leq 27.5 inches)

    P(\bar X < 28.5) = P( \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } < \frac{28.5-28}{\frac{7}{\sqrt{26} } } ) = P(Z < 0.36) = 0.64058 {using z table}                      

    P(\bar X \leq 27.5) = P( \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } \leq \frac{27.5-28}{\frac{7}{\sqrt{26} } } ) = P(Z \leq -0.36) = 1 - P(Z < 0.36)

                                                        = 1 - 0.64058 = 0.35942

Therefore, P(27.5 inches < \bar X < 28.5 inches) = 0.64058 - 0.35942 = 0.2812

6 0
3 years ago
Is the following relation a function (0.3, 0.6), (0.4,0.8), (0.3, 0.7), (0.5,0.5)
Elena L [17]

Answer is B...........

3 0
3 years ago
Other questions:
  • Luisa liked 7 miles of a 21 mile trail. What percent of the trail did she hike?
    8·1 answer
  • What does |-100| equal?
    15·2 answers
  • At the register Annie notices her grocery bill was marked with $14 for the 7 pounds of meat she purchased. What is another way
    6·2 answers
  • Kaitlyn was asked to find which expression below is equivalent to -3x + 5(x + 2)?
    7·2 answers
  • Will give brainiliest to whoever answers it and gives it step by step please help me
    13·1 answer
  • What value or values of x satisfy 2x + 5.31 = 4.2?
    5·1 answer
  • Ik this is the easiest question but who wanna do it for me?:(
    5·2 answers
  • The scatterplot shows the average miles per gallon versus the age, in years, of a car.
    15·1 answer
  • Find the first derivative of f'(a) using first principle, for the given value of
    11·1 answer
  • 308 miles in 7 hours. Find the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!