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
VladimirAG [237]
2 years ago
12

the radius of the base of a cylinder is 7cm and height is 8cm find the volume and surface area of the solid cylinder​

Mathematics
1 answer:
Musya8 [376]2 years ago
8 0

Answer:

Volume=1232cm Surface area=660cm

Step-by-step explanation:

Volume=π x r² x t

=22/7 x 7 x 7 x 8

=1232cm

Surface area=2 x π x r x (r+t)

=2 x 22/7 x 7 x (7+8)

=44 x 15

=660cm

SORRY IF I AM WRONG, I'M TRYING MY BEST

You might be interested in
What is 1 1/2 into a whole number
drek231 [11]
It can't be a whole number. It can be 1.5, or 1 1/2.
4 0
3 years ago
Read 2 more answers
Im struggling with stupid math problems and i need help
a_sh-v [17]
Add the x and y and you will get 4x^4=8y^2
3 0
3 years ago
We’ve shown that matrix multiplication is generally not commutative, meaning that as a general rule for two
ValentinkaMS [17]

Answer:

a) Observe that

G=\left[\begin{array}{ccc}2&6\\4&0\end{array}\right] =2\left[\begin{array}{ccc}1&3\\2&0\end{array}\right] =2F

Then, FG=F(2F)=2FF, \text{ and } GF=(2F)F=2FF

b) The zero matrix satisfies that for every matrix B such that the product is well defined, 0B=0=B0.

Since the matrix G is the zero matrix then FG=F0=0F=GF

c) The identity(Id) matrix satisfies that for  that for every matrix B such that the product is well defined Id*B=B=B*Id. Observe that G is the identity matrix, then FG=F*Id=F=Id*F=GF

d) Observe that

G=\left[\begin{array}{ccc}3&0&0\\0&3&0\\0&0&3\end{array}\right] =3\left[\begin{array}{ccc}1&0&0\\0&1&0\\0&0&1\end{array}\right] =3Id.

Then GF=3Id*F=3F\\FG=F(3Id)=3F*Id=3F

6 0
3 years ago
Charles invests $425 in a savings account that pays interest at an annual rate of 4 percent, compounded continuously. Approximat
Ira Lisetskai [31]

Answer: it will take 17.33 years to double.

Step-by-step explanation:

The formula for continuously compounded interest is

A = P x e^(r x t)

Where

A represents the future value of the investment after t years.

P represents the present value or initial amount invested

r represents the interest rate

t represents the time in years for which the investment was made.

e is the mathematical constant approximated as 2.7183.

From the information given,

P = 425

A = 2 × 425 = 850

r = 4% = 4/100 = 0.04

Therefore,

850 = 425 x 2.7183^(0.04 x t)

850/425 = 2.7183^(0.04t)

2 = 2.7183^(0.04t)

Taking ln of both sides, it becomes

Ln 2 = 0.04t ln 2.7183

0.693 = 0.04t

t = 0.693/0.04

t = 17.325

5 0
3 years ago
Find the surface area of this net
MaRussiya [10]

Answer:

SA: 231

Step-by-step explanation:

8(12) + 2(5(12)) + 5(3)

96 + 120 + 15 = 231

I hopoe I helped you ;)

6 0
3 years ago
Other questions:
  • For what values of x does 25^x = 5^x^2-3?
    9·2 answers
  • Which function has the same domain as (m•n)(x)
    10·2 answers
  • How do find the circumference of part of a circle
    7·2 answers
  • Solve for xxx. Your answer must be simplified. \dfrac x{-6}\geq-20 −6 x ​ ≥−20
    11·1 answer
  • I have an 80 mark math exam this tuesday and there are no study holidays in between. I have 5 chapters coming. I want to practic
    9·1 answer
  • Find the slope of the line that passes through (10, 7) and (1,8).
    12·2 answers
  • In a class of 33 students, the ratio of girls to boys is 6:5. How many are there
    5·1 answer
  • What is the product?
    13·1 answer
  • PLEASE HELP!
    12·1 answer
  • What is the solution to the system of two equations shown?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!