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
djverab [1.8K]
3 years ago
9

A random sample of size 25 from a normal population has the mean = 47.5 and the standard deviation s = 8.4. does this informatio

n tend to support or refuse the claim that the mean of the population is = 42.1
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0
What were your given answer choices
You might be interested in
In the Cartesian Coordinate System, the intersection of the axis is called the origin. What is this called in the Polar coordina
Nookie1986 [14]

it's plural so axes*

and in pilar coordinates, the axes are circular so they never intersect but the centre point is still called origin.

4 0
3 years ago
A line with slope -2/3 passes through the point (-12,16) What is the X-intercept
Troyanec [42]

to find the x-intercept of a function, we simply set y = 0 and then solve for "x", so, let's first find the equation of it and then set y = 0.


\bf (\stackrel{x_1}{-12}~,~\stackrel{y_1}{16})~\hspace{10em} slope = m\implies-\cfrac{2}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-16=-\cfrac{2}{3}[x-(-12)] \\\\\\ y-16=-\cfrac{2}{3}(x+12)\implies \stackrel{\stackrel{y}{\downarrow }}{0}-16=-\cfrac{2}{3}x-8\implies -8=-\cfrac{2x}{3} \\\\\\ -24=-2x\implies \cfrac{-24}{-2}=x\implies 12=x \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill (12,0) ~\hfill

4 0
4 years ago
Which best describes the relationship among the volumes of hemisphere X, cylinder Y, and cone Z?
kogti [31]

Answer: I saw on another post on here with the same question that someone said it was

B. The sum of the volumes of X and Z equals the volume of Y.

6 0
3 years ago
Write a variable expression for 9 more than a number s.
Vladimir [108]
S+9

More than suggests addition.
7 0
3 years ago
A can of soup has a radius of 6 inches and a height of 10 inches. How much soup can fill the can if it is filled to the top? Pla
denpristay [2]

A can of soup is a cylinder. We want to know how much soup can fill the can, which means that we are looking for the volume.

Formula for the volume of a cylinder: V = pi x r^2 x h

V = pi x 6^2 x 10

V = pi x 36 x 10

V = 360pi inches^3

Hope this helps! :)

6 0
3 years ago
Other questions:
  • HOW DO I SIMPLIFY PLZ HELP EXTRA POINT
    9·1 answer
  • While walking home on a dark night, Joanna saw a bright light in the sky and concluded that it must have been a spaceship from a
    11·2 answers
  • What is the answer to this problem:
    6·1 answer
  • Please help!!<br> find h(8)-f(-7)
    9·1 answer
  • A line is defined by the equation 2x + y = 4. Which shows the graph of this line?
    9·1 answer
  • A small amphitheater has 8 rows that have 42 seats in each row. If an act needs to keep the first row empty but has all the rest
    10·1 answer
  • Alberto uses the steps below to solve the equation One-half x minus 3 equals 7. Step 1: One-half x minus 3 plus 3 equals 7 plus
    10·1 answer
  • Find the new price for the markdown. Round to the nearest cent if necessary. $12.99 marked down 25%
    12·1 answer
  • X
    15·1 answer
  • By how many times does the surface area of a sphere differ if radius is double​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!