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
Ber [7]
3 years ago
13

What number minus one-half is equal to negative one half

Mathematics
1 answer:
kherson [118]3 years ago
8 0
X-1/2=-1/2
X= -1/2+1/2
X= 0
You might be interested in
Explain how knowing that 5÷8=0.625 helps you write the decimal for 4 5/8
bonufazy [111]
When you trying to write the decimal value of 4 5/8 then you will get 4+ 5/8. If you know how much 5/8 value in decimal form then you don't need to divide 5 with 8. You just need to convert it separately, make it become 4+0.625 = 4.625.

Since you are skipping a stage it definitely helps and making you write the decimal faster.
4 0
3 years ago
A school will offer pizza on Friday's if at least 30% of the students will buy it. A sample of 50 students asked if they would b
Whitepunk [10]

Answer:

0.0614

Step-by-step explanation:

Solution:-

- The school offers pizza on friday when at-least 30% students are willing to buy.

- The minimum required proportion of students, p = 30%

- A sample of n = 50 students were taken and out of the sample x = 10 people responded willing to buy pizza.

- We will denote a random variable X: the number of students willing to buy Pizza on fridays.

- For the sample of n = 50, for Pizza to be offered on friday the expected number of student who should opt for buying must be at-least:

           Expected ( Mean - u ) = n*p = 50*0.3 = 15 people.

- The standard deviation for the normal distribution can be determined as follows:

          standard deviation ( s ) = √n*p*(1-p)

                                                 = √50*0.3*(0.7)

                                                 = √10.5 = 3.2404

- We will assume that the random variable X follows normal distribution:

                       X ~ Norm ( 15 , 3.2404^2 )

- To determine the probability of sample of size n = 50 with proportion or lower. The number of people willing to buy pizza on friday as per survey are x = 10.

- Evaluate the standard normal ( Z-score ):

                      P ( X < x ) = P ( Z < ( x - u ) / s )

                      P ( X < 10 ) = P ( Z < ( 10 - 15 ) / 3.2404 )

                      P ( X < 10 ) = P ( Z < -1.54301 )

- Use the standard normal tables to determine the value of P ( Z < -1.54301 ):

                     P ( X < 10 ) = P ( Z < -1.54301 ) = 0.0614

Answer: The probability of getting a sample with the proportion or lower given a population with a proportion of .30 is 0.0614.

5 0
3 years ago
The two right triangular prisms are similar solids.
Zanzabum

Answer:

<h2>The volume of the larger prims is eight times greater than the smaller prism.</h2>

Step-by-step explanation:

If the scale factor of the larger prims to the smaller prism is 3, that means each side is triple.

We know the a triangular prims has a volume defined by

V_{small} =\frac{b \times h_{1} }{2} \times h_{2}

If we take that formula as the smaller prism, then the larer prism has a volum of

V_{large} =\frac{2b \times 2h_{1} }{2} \times 2h_{2}=8(\frac{b \times h_{1} \times h_{2}  }{2} )

If we compare, we can deduct that

V_{large}=8V_{small}

In words, the volume of the larger prims is eight times greater than the smaller prism.

4 0
3 years ago
Read 2 more answers
How to find the volume of a room
yuradex [85]

multiply the height x the length x the width to find the volume of a room (or another 3d object)

5 0
2 years ago
Identify the mean and standard deviation of the graph
fgiga [73]
The answer is C, mean =100 and standard deviation=15
5 0
3 years ago
Other questions:
  • On a compass, what bearing is South East?​
    7·1 answer
  • Maureen bought 200 shares of BETA Corp. for 12 1/2 per share. What was
    15·1 answer
  • The bus fare in a city is $1.75. People who use the bus had the option of purchasing a monthly coupon book for $21 . With the co
    12·1 answer
  • Each greater than 2/5 with a product less than 2/5
    15·1 answer
  • Ray created the list of factors for 48 below.
    11·2 answers
  • Is the dilation an enlargement or a reduction
    5·2 answers
  • Beth won 53 pieces of gum playing basketball at her school's game night. Later, she gave two to each of her friends. She only ha
    6·1 answer
  • The box plots show the grades of two different students in Ms.
    8·1 answer
  • ‼️help‼️ If anyone could please help with this I would very much appreciate it, it’s due today!!!!
    9·1 answer
  • Answer correctly for branliest!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!