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
Neporo4naja [7]
3 years ago
6

Write an equation for the statement. Then, solve the equation:

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
4 0

Answer:

V = 125.6 in³

Step-by-step explanation:

let V be volume, h the height and r the radius, then the equation relating the quantities is

V = khr² ← k is the constant of variation

To find k use the condition V = 402.12, h = 8, r = 4

402.12 = k × 8 × 4² = 128k ( divide both sides by 128 )

3.14 = k [ note 3.14 is π )

V = 3.14hr² ← equation of variation [ V = πr²h ]

Given r = 2 and h = 10, then

V = 3.14 × 10 × 2² = 3.14 × 40 = 125.6

You might be interested in
Reflect (2.5,4.5) in the x-axis.
lawyer [7]
You can’t .................
5 0
3 years ago
Someone please help me
Mars2501 [29]

Answer:

x=-1,-2

Step-by-step explanation:

Multiply the given equation with (x+1) on both sides. We'll get,

x+2/x=-3

or,x^2+2=-3x

or,x^2+3x+2=0

or,x^2+2x+x+2=0

or,x(x+2)+1(x+2)=0

or,(x+2)(x+1)=0

or,x=-2,-1

4 0
3 years ago
Please help me with this
dexar [7]

Answer:0.28divide by7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
4 thousands + 21 tens
mafiozo [28]
4 x 1 thousand (1000) = 4000

21 x 1 ten (10) = 210


 4000
+ 210
---------
 4210

=4210 (four thousand-two hundred and ten
7 0
3 years ago
Read 2 more answers
-3x + 6 = 18 I want the answer
zhenek [66]
-3x + 6 = 18...subtract 6 from both sides
-3x = 18 - 6
-3x = 12...divide both sides by -3
x = -12/3 reduces to -4 <===
7 0
3 years ago
Read 2 more answers
Other questions:
  • If c is between a and b then ac=cb choices: sometimes, never, always
    14·1 answer
  • 3x/4 +2/3=x/3 find the exact answer to the simplest form
    11·1 answer
  • From 11:50 a.m. to 12:40 p.m. is
    12·1 answer
  • The collection of all value is called the range of the function​
    5·1 answer
  • We have N cars on a circular one-way road; they have the same make, same model, same year and the same fuel economy. The total a
    7·1 answer
  • Help me please !!!!!
    8·2 answers
  • 10. please for 25 points​
    13·2 answers
  • Delanie deposited $3,000 into an account that earns 2.5% interest compounded annually. After 2 years, how much interest in dolla
    8·1 answer
  • Question 2 of 10
    12·1 answer
  • Laura’s printer takes 5 minutes to print 85 pages.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!