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
Lelechka [254]
3 years ago
13

Does anyone know this?

Mathematics
1 answer:
Bumek [7]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Initial mean = 156, Changed mean = 163.92

So, mean increases. Only condition that satisfies this is B.

You might be interested in
A farmer is able to prepare 1/2 are of soil in 3 days. How long will it take him to prepare 2 1/4 acres of soil?
Alexxx [7]

Answer:

x = 13 1/2 days

Step-by-step explanation:

1/2 acre              2 1/4 acre

------------ = -------------------------

3 days           x days


using cross products

1/2 * x = 2  1/4 * 3

change 2  1/4 to an improper fraction   (4*2+1)/4 =9/4

1/2 x = 9/4*3

1/2x = 27/4

multiply each side by 2

2 * 1/2 x = 27/4 * 2

x = 27/2

change back to a mixed number

x = 13 1/2

8 0
3 years ago
What is the product of -2/7 and -3/7
Hitman42 [59]

Answer:

6/49 is the answer of this question

3 0
3 years ago
Read 2 more answers
The quotient of x and 4<br> minus five is the same<br> as three times a<br> number increased by 8.
Stells [14]
Answer is

X/4 - 5 = 3x + 8
8 0
3 years ago
Which two values of X are roots of the polynomial below 4x^2-6x+1
PtichkaEL [24]

4x^2-6x+1=0\\\\a=4,\ b=-6,\ c=1\\\\\Delta=b^2-4ac\\\\\Delta=(-6)^2-4(4)(1)=36-16=20\\\\\sqrt\Delta=\sqrt{20}=\sqrt{4\cdot5}=\sqrt4\cdot\sqrt5=2\sqrt5\\\\x_1=\dfrac{-b-\sqrt\Delta}{2a},\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\x_1=\dfrac{-(-6)-2\sqrt5}{2\cdot4}=\dfrac{3-\sqrt5}{4}\\\\x_2=\dfrac{-(-6)+2\sqrt5}{2\cdot4}=\dfrac{3+\sqrt5}{4}

5 0
3 years ago
Determine the value of c for each figure
erica [24]

Answer:

can you tell me a little bit more?

6 0
3 years ago
Other questions:
  • Write the rule for the nth term of the sequence. Then find a11-3.5, 3, 2.5, 2, 1.5, ...
    8·1 answer
  • Easy question!<br><br> 2x - 3 = 8<br><br> solve plz
    7·1 answer
  • The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of serv
    13·1 answer
  • Solve 7x +2x over 3 =5
    14·1 answer
  • On what interval(s) of x does f have positive concavity?
    5·1 answer
  • If the product of 375 x 25 is 9,375, what is the product of 375 x 2.5 ? How do you know?
    13·2 answers
  • 18 × [ 7+(-3) ] = [ 18 x 7] + [ 18 × (-3) ]​
    11·2 answers
  • Use long division to find the quotient below.<br> (2x3 + x2 + 25) /(2x+5)
    13·1 answer
  • Kala received a $70 gift card for a coffee store. She used it in buying some coffee that cost $8.58 per pound. After buying the
    8·1 answer
  • Which is not a binomial in the following expressions? *
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!