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
yulyashka [42]
3 years ago
13

A hubcap has a redius of 16 centimeter.What is the area of the hubcap?

Mathematics
1 answer:
gavmur [86]3 years ago
6 0
Area=πr^2
Area=π(16)^2
Area≈804.2477 cm^2

I left the number large enough in case you need to round it off to some other decimal place.
You might be interested in
I'll give brainiest to the first correct answer
Elanso [62]

Answer: the first one is the answer I think

Step-by-step explanation:

6 0
3 years ago
Bailey sold pumpkin pies for two days. on Monday, she sold 13 pies and on Tuesday she sold 23 pies. If she used 3/4 cup of pumpk
MArishka [77]

Answer:

27

Step-by-step explanation:

13 + 23 = 36 x 3/4 = 27

8 0
3 years ago
Determine if the given mapping phi is a homomorphism on the given groups. If so, identify its kernel and whether or not the mapp
shtirl [24]

Answer:

(a) No. (b)Yes. (c)Yes. (d)Yes.

Step-by-step explanation:

(a) If \phi: G \longrightarrow G is an homomorphism, then it must hold

that b^{-1}a^{-1}=(ab)^{-1}=\phi(ab)=\phi(a)\phi(b)=a^{-1}b^{-1},

but the last statement is true if and only if G is abelian.

(b) Since G is abelian, it holds that

\phi(a)\phi(b)=a^nb^n=(ab)^{n}=\phi(ab)

which tells us that \phi is a homorphism. The kernel of \phi

is the set of elements g in G such that g^{n}=1. However,

\phi is not necessarily 1-1 or onto, if G=\mathbb{Z}_6 and

n=3, we have

kern(\phi)=\{0,2,4\} \quad \text{and} \quad\\\\Im(\phi)=\{0,3\}

(c) If z_1,z_2 \in \mathbb{C}^{\times} remeber that

|z_1 \cdot z_2|=|z_1|\cdot|z_2|, which tells us that \phi is a

homomorphism. In this case

kern(\phi)=\{\quad z\in\mathbb{C} \quad | \quad |z|=1 \}, if we write a

complex number as z=x+iy, then |z|=x^2+y^2, which tells

us that kern(\phi) is the unit circle. Moreover, since

kern(\phi) \neq \{1\} the mapping is not 1-1, also if we take a negative

real number, it is not in the image of \phi, which tells us that

\phi is not surjective.

(d) Remember that e^{ix}=\cos(x)+i\sin(x), using this, it holds that

\phi(x+y)=e^{i(x+y)}=e^{ix}e^{iy}=\phi(x)\phi(x)

which tells us that \phi is a homomorphism. By computing we see

that  kern(\phi)=\{2 \pi n| \quad n \in \mathbb{Z} \} and

Im(\phi) is the unit circle, hence \phi is neither injective nor

surjective.

7 0
3 years ago
A caterer has 56 liters of punch to use for a upcoming event. The foundation for the punch has the capacity measurements in gall
BARSIC [14]
Drdrdfdfdfdfdfdfdfdf
6 0
3 years ago
NEED THE ANSWER PLEASE...
sesenic [268]

<u>Answer:</u>

The correct answer option is D. \frac { 3 n ^ { 3 } } { 5 m ^ { 2 } }.

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

We are given the following expression and we are to simplify it:

\frac { 3 m ^ { - 2 } } { 5 n ^ { - 3 } }

Here the variables m and n are having negative powers. So to change these powers from negative to positive, we will take their reciprocals to get:

\frac { 3 n ^ { 3 } } { 5 m ^ { 2 } }

7 0
4 years ago
Read 2 more answers
Other questions:
  • What is the quotient of 65,610 ÷ 18?
    7·2 answers
  • **WILL MARK BRAINLIEST AND THANK YOU**
    5·1 answer
  • Is this the right answer?
    5·1 answer
  • In 1967, New Zealander Burt Munro set the world record for an Indian motorcycle, on the Bonneville Salt Flats in Utah, with a ma
    5·1 answer
  • PLEASE HELP I WILL GIVE 25 POINTS AND BRAINLIEST TO WHOEVER ANSWERS CORRECTLY! John is making baked goods for a party. He can ei
    12·1 answer
  • When an object moves on a circular path, the centripetal force varies directly as the square of the velocity and inversely as th
    5·1 answer
  • Find the missing side. Round your answer to the nearest tenth. help
    14·1 answer
  • After Lynda's initial client assessment, she has noted that her client will require inventory management to avoid out-of-stock s
    15·1 answer
  • ................................................................................................................................
    6·2 answers
  • I need help with this pls help!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!