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
Assoli18 [71]
2 years ago
11

In the last 150 years, the average height of people in the industrialized nations has increased by 1/3 foot. Today, American men

have an average height of 5 7/12 feet. What was the average height of American men 150 years ago? show your work
Mathematics
1 answer:
Alla [95]2 years ago
4 0

Answer:

  • 5 1/4 feet

Step-by-step explanation:

<u>Average height now:</u>

  • 5 7/12 feet

<u>The difference:</u>

  • 1/3 foot

<u>Average height 150 years ago:</u>

  • 5 7/12 - 1/3 =
  • 5 + 7/12 - 4/12 =
  • 5 + 3/12 =
  • 5 + 1/4 =
  • 5 1/4 feet

You might be interested in
Find the surface area of a sphere with a radius of 8cm
Andreas93 [3]
I believe the proper way to find the surface area of a sphere is 4 times 3.14 (which is Pi) times the radius squared. Or 4(3.14)*r^2.

Where I found 804.25
3 0
3 years ago
What number should be placed in the box to help complete the division calculation?
Drupady [299]
Multiply 13 by the 2 above the divide line

13*2 = 26
 so the number in the box should be 260
5 0
3 years ago
The surface of a circular plate has an area of 64\piπ square cm. What is the circumference of the plate?
cluponka [151]
Ok I will let you know tomorrow afternoon when I get to the school
7 0
2 years ago
Form a quatratic polynomial ome of whose zero is 2+root5 and sum of two zeros is 4
siniylev [52]
2+sq root of 5
and the sum of zeros = 4
other zero =4-(2+sq root of 5)=2-sq root of 5

6 0
3 years ago
Let H and K be subgroups of a group G, and let g be an element of G. The set <img src="https://tex.z-dn.net/?f=%5Cmath%20HgK%20%
34kurt

Answer:

Yes, double cosets partition G.

Step-by-step explanation:

We are going to define a <em>relation</em> over the elements of G.

Let x,y\in G. We say that x\sim y if, and only if, y\in HxK, or, equivalently, if y=hxk, for some h\in H, k\in K.

This defines an <em>equivalence relation over </em><em>G</em>, that is, this relation is <em>reflexive, symmetric and transitive:</em>

  • Reflexivity: (x\sim x for all x\in G.) Note that we can write x=exe, where e is the <em>identity element</em>, so e\in H,K and then x\in HxK. Therefore, x\sim x.
  • Symmetry: (If x\sim y then y\sim x.) If x\sim y then y=hxk for some h\in H and k\in K. Multiplying by the inverses of h and k we get that x=h^{-1}yk^{-1} and is known that h^{-1}\in H and k^{-1}\in K. This means that x\in HyK or, equivalently, y\sim x.
  • Transitivity: (If x\sim y and y\sim z, then x\sim z.) If x\sim y and y\sim z, then there exists h_1,h_2\in H and k_1,k_2\in K such that y=h_1xk_1 and z=h_2yk_2. Then, \\ z=h_2yk_2=h_2(h_1xk_1)k_2=(h_2h_1)x(k_1k_2)=h_3xk_3 where h_3=h_2h_1\in H and k_3=k_1k_2\in K. Consequently, z\sim x.

Now that we prove that the relation "\sim" is an equivalence over G, we use the fact that the <em>different equivalence classes partition </em><em>G.</em><em> </em>Since the equivalence classes are defined by [x]=\{y\in G\colon x\sim y\} =\{y\in G \colon y=hgk\ \text{for some } h\in H, k\in K \}=HxK, then we're done.

5 0
2 years ago
Other questions:
  • What is the multiplicative inverse of 6-9i?
    9·2 answers
  • Find the total cost if wacky widget company makes 350 widgets
    12·1 answer
  • Given Triangle DEF has point D(-1,-5), E(-2,-1) and F(-4,-3) and is
    13·1 answer
  • Write the given second order equation as its equivalent system of first order equations. u″+5u′+4u=0 u″+5u′+4u=0 use vv to repre
    14·1 answer
  • You start driving north for 27 miles, turn right, and drive east for another 36 miles. At the end of driving, what is your strai
    7·1 answer
  • George borrowed $25,000 for a new car. If George pays simple interest at a rate of
    10·1 answer
  • For each sentence, write an equation. Solve the equation to find the number
    6·1 answer
  • What is the domain for the set of ordered pairs? (1,5) (3,7) (5,9) (10, 9) *
    9·1 answer
  • الزاوية في الوضع القياسي التي تكون الزاوية °82 زاوية مرجعية لها هي :
    14·2 answers
  • 0.36 divided by 2.34
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!