answer.
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
solmaris [256]
2 years ago
7

The standard kilogram (fig. 1.1a) is a platinum–iridium cylinder 39.0 mm in height and 39.0 mm in diameter. what is the density

of the material?
Mathematics
1 answer:
ra1l [238]2 years ago
6 0
The volume of a cylinder is calculated as pi*h*d^2/4, so in this case, V = pi*(39 mm)(39 mm)^2 / 4 = 46,589 mm^3. Dividing the mass of 1 kg by the volume of 46,589 mm^3 gives a value of 2.1464 x 10^-5 kg/mm^3. Usually, density values are given in kg/m^3, so we can convert by multiplying by 1x10^9, which gives a value of 21,464 kg/m^3.
You might be interested in
Compare A and B if 70% of A is equal to $0.7a and 35% of B is equal to $0.35a
MrRa [10]

Answer:

A=B

Step-by-step explanation:

Equation 1: 70% of A = 0.7a

Equation 2: 35% of B = 0.35a

Equation 3 = (Equation 2) • 2

Equation 3: 70% of B = 0.7a

Equation 3 = Equation 1

A = B

3 0
2 years ago
Read 2 more answers
Compare the functions shown below: f(x) = 4x + 5 g(x) tangent function with y intercept at 0, 2 h(x) = 3 sin(2x + π) − 2 Which f
KATRIN_1 [288]
The y-intercept of the graph of a function is the value of f(0) for any function f.
That is, it is the y-value in the pair (0, y)



The y-intercept of <span>f(x) = 4x + 5 is f(0)=4*0+5=5

The y-intercept of (0, 2) is 2.

The y-intercept of </span>h(x) = 3 sin(2x + π) − 2 is:

h(0) = 3 sin(2*0 + π) − 2=3 sin(π) − 2=3*0-2=-2


<span>Answer: The function f has the greatest y-intercept.


</span>
7 0
2 years ago
Bryan is 122 pages into his adventure novel, and he can't wait to finish it tonight. Luckily, he reads quickly, 45 pages per hou
MAXImum [283]

Answer: 302

Step-by-step explanation:

45 pages per hour X 4 hours = 180  pages in total

180 + 122 = 302

so 302 pages in total

'please can i have brainliest? i need it for my goal'

3 0
2 years ago
Read 3 more answers
There are 450 seats in the lower level of a concert hall with b balcony seats in the upper level. So far, 170 tickets have been
slamgirl [31]

There are 400 balcony seats in the concert hall.

<u>Step-by-step explanation</u>:

Step 1 :

  • The number of lower seats = 450 seats

Total seats = Lower seats + balcony seats

Step 2 :

  • Tickets sold = 170 tickets
  • Total tickets = x

Tickets sold = 1/5 of total tickets.

⇒ 170 = (1/5)x

⇒ x = 5\times170

⇒ x = 850 tickets

∴ Total seats in the concert hall is 850.

Step 3 :

Total seats = 450 + balcony seats

850 - 450 = balcony seats

∴ balcony seats = 400

7 0
2 years ago
Suppose two individuals (smith and jones) each have 10 hours of labor to devote to producting either ice cream (x) or chicken so
sattari [20]
It has to be either 10x or 10y
5 0
2 years ago
Other questions:
  • After 8 years a loan grows to $75 210. If the interest was compounded annually at a rate of 8.5%, find the size of the initial l
    7·1 answer
  • Express 0.32 as a fraction in simplest form.<br> The 2 is repeating.<br><br> Thanks So Much!
    11·2 answers
  • Roy's average balance checking account pays simple interest of 4.8% annually and he made $2.25 in interest last month. What was
    12·1 answer
  • Which properties are used to add these complex numbers? Choose all that apply.
    15·2 answers
  • What is the value of z in the equation 3z - 7 = 14
    8·1 answer
  • The glee club has $90 to spend on pens and pencils. Each pen costs $0.75 and each pencil costs $0.15. Let x represent the number
    8·2 answers
  • Henri has $24,000 invested in stocks and bonds. The amount in stocks is $6,000 more than three times the amount in bonds. Call t
    12·3 answers
  • 18.) The cost of textbooks for a school increases with the average class size. Identify the independent and dependent quantity i
    8·1 answer
  • Julio takes a multivitamin and a calcium vitamin every day. One at a time, he randomly
    12·1 answer
  • A new car is purchased for 22400 dollars. The value of the car depreciates at 11% per year. To the nearest tenth of a year , how
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!