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
xz_007 [3.2K]
2 years ago
11

eeek i have no idea what im doing and i have like ten more questions to answer :( and i have no idea what im doing

Mathematics
2 answers:
vfiekz [6]2 years ago
7 0

Length of the radius of the small pizza = 15 inches

Circumference of the small pizza :

=\tt 2\pi r

= \tt2 \times 3.14 \times 15

= \tt94.2 \: inches

Thus, the circumference of the small pizza = 94.2 inches

Length of the radius of the large pizza = 24 inches

Circumference of the large pizza :

= \tt2\pi r

\tt2 \times 3.14 \times 24

= \tt150.72

Thus, the circumference of the large pizza = 150.72 inches

Ratio of the circumferences of the two pizzas :

= 94.2 : 150.72

=  \tt\frac{94.2 \times 100}{150.72 \times 100}

= \tt \frac{9420}{15072}

Let us simplify the fraction :

=  \tt\frac{9420}{15072}

=\tt \frac{9420 \div 12}{15072 \div 12}

= \tt \frac{785}{1256}

=  \tt\frac{785 \div 157}{1256 \div 157}

= \color{plum}{ \tt\frac{5}{8} }

Thus, the ratio of their circumferences = 5:8

Therefore, the ratio of the circumferences of the pizzas as a fraction = \color{plum}{ \tt\frac{5}{8} }

myrzilka [38]2 years ago
4 0

Answer:

25/64

Step-by-step explanation:

C=πd

find diameter:

small= 15 x 15= 225

large= 24 x 24= 576

multiply:

225 x 3.14= 706.5

576 x 3.14= 1808.64

ratio:

706.5/1808.64

reduce:

25/64

You might be interested in
PLS HELP QUICK, I HAVE A TEST, more points
bezimeni [28]

Answer:

Options (1), (3), (5) and (6)

Step-by-step explanation:

Option (1)

Both the circles M and H are same in shape. Therefore, both are similar.

True

Option (2)

MH = MS = [Radii of a circle]

MH = MO + OH

MH = ME + OH [Since, MO = ME]

MH = 10 + 25 = 35 cm

Area of circle M = πr²

                          = π(35)²

                          = 1225π

Area of circle H = π(25)²

                           = 625π

\frac{\text{Area of M}}{\text{Area of H}}=\frac{1225\pi }{625\pi }

Area of M = 1.96(Area of H)

False

Option 3

OH + MS = 25 + 35

               = 60 cm

True

Option 4

m∠HMS = 90°

Can't be figured out with the given informations

False

Option 5

Diameter of circle H = 2(radius)

                                 = 2(25)

                                 = 50 cm

True

Option 6

Circumference of circle S = 2πr

                                           = 2π(ES)

Circumference of circle M = 2π(MS)

Ratio of the circumference of circle S and M = \frac{2\pi (ES)}{2\pi (MS)}

                                                                          = \frac{ES}{MS}

True.

Options (1), (3), (5) and (6) are correct.                    

3 0
3 years ago
Please help me with this answer!! I am really stuck...No nonsense answers please.
wariber [46]

Answer:

19

Step-by-step explanation:

Inscribed Angle = 1/2 Intercepted Arc

< DBG = 1/2 ( DG)

< DBG = 1/2 ( 360 - BD - BG)

           = 1/2 ( 360 - 172 - 150)

           = 1/2 (38)

           = 19

8 0
3 years ago
If f (x) = 5 x minus 25 and g (x) = one-fifth x + 5, which expression could be used to verify g(x) is the inverse of f(x)?
Vinil7 [7]

Answer:

The expression used to represent g(x) as inverse of f(x) is \frac{1}{5}(5x-25)+5

Option B is correct.

Step-by-step explanation:

We are given:

f(x)= 5x-25\\g(x)=\frac{1}{5}x+5

We need to find the expression that could be used to verify g(x) is the inverse of f(x).

We know that g(f(x))=x is inverse of function

So placing value of f(x) in g(x)

g(f(x))=\frac{1}{5}(5x-25)+5

So, the expression used to represent g(x) as inverse of f(x) is \frac{1}{5}(5x-25)+5

Option B is correct.

We can also solve to prove that g(f(x))=x

g(f(x))=\frac{1}{5}(5x-25)+5\\g(f(x))=\frac{5}{5}(x-5)+5\\g(f(x))=x-5+5\\g(f(x))=x

5 0
2 years ago
Read 2 more answers
For a group of 100 people, compute(a) the expected number of days of the year that are birthdays of exactly 3 people.(b) the exp
Scilla [17]

Answer:

Step-by-step explanation:

Leaving leap years, a year contains 365 days.

For a group of 100 people, each person is independent of the other and probability of any day being his birthday has a chance of

\frac{1}{365}

a) Probability that  exactly 3 people have same birthday = \frac{1}{365^3}

Each day is independent of the other

And hence no of days having exactly 3 persons birthday out of 100 persons is binomial with n = 365 and p = \frac{1}{365^3}

Expected value of days = np = \frac{1}{365^2}

b) Distinct birthdays is binomail with p =1/365 and n = 365

Hence

expected value = np =1

4 0
3 years ago
Can someone pls help me
Lisa [10]
...hehehe beh ènehbnsjajwuwijwuwiiwhwniqkwiqkwjwmjwujw
7 0
2 years ago
Read 2 more answers
Other questions:
  • Can some one help me with this?????
    13·2 answers
  • How many quarters can you get for a five dollar bill
    11·1 answer
  • 1) The figure at the top is a parallelogram; the area is A = bh; where b is the base and h is the height; use properties of spec
    5·1 answer
  • On a piece of paper, use a protractor to construct △ABC with m∠A=30° , m∠B=60° , and m∠C=90° . Which statements about the triang
    9·2 answers
  • Nick has to build a brick wall. Each row of the wall requires 62 bricks. There are 10 rows in the wall. How many bricks will Nic
    7·1 answer
  • How can I solve this question
    10·1 answer
  • What is the coefficient in the following term? -18ab^2c^2
    8·2 answers
  • Graph the following inequality. Then click to show the correct graph. x &lt; -1
    14·1 answer
  • Which statement is a counterexample to the following conjecture?
    10·2 answers
  • What does CPCTC represent and when would you use it?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!