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
Sidana [21]
3 years ago
10

Cynthia wants to buy a round photo frame for her brother. the radius of the photo frame is 9 cm. what is the photo frame circumf

erence?
Mathematics
1 answer:
Vsevolod [243]3 years ago
8 0

Answer:

I don't know

Step-by-step explanation:

You gave me the wrong answer on study island.

You might be interested in
Let represent the number of tires with low air pressure on a randomly chosen car. The probability distribution of is as follows.
Sindrei [870]

Answer:

a) P(X=3) = 0.1

b) P(X\geq 3) =1-P(X

And replacing we got:

P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4

c) P(X=4) = 0.3

d) P(X=0) = 0.2

e) E(X) =0*0.2 +1*0.3+2*0.1 +3*0.1 +4*0.3= 2

f) E(X^2)= \sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2) =0^2*0.2 +1^2*0.3+2^2*0.1 +3^2*0.1 +4^2*0.3= 6.4

And the variance would be:

Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4

And the deviation:

\sigma =\sqrt{2.4} = 1.549

Step-by-step explanation:

We have the following distribution

x      0     1     2   3   4

P(x) 0.2 0.3 0.1 0.1 0.3

Part a

For this case:

P(X=3) = 0.1

Part b

We want this probability:

P(X\geq 3) =1-P(X

And replacing we got:

P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4

Part c

For this case we want this probability:

P(X=4) = 0.3

Part d

P(X=0) = 0.2

Part e

We can find the mean with this formula:

E(X)= \sum_{i=1}^n X_i P(X_i)

And replacing we got:

E(X) =0*0.2 +1*0.3+2*0.1 +3*0.1 +4*0.3= 2

Part f

We can find the second moment with this formula

E(X^2)= \sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2) =0^2*0.2 +1^2*0.3+2^2*0.1 +3^2*0.1 +4^2*0.3= 6.4

And the variance would be:

Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4

And the deviation:

\sigma =\sqrt{2.4} = 1.549

4 0
3 years ago
Which answer is correct? It wouldn’t let me click mathematics btw
Bad White [126]
6)
KM bisects on <NKL so m<MKN = m<MKL = 3x + 5

2(m<MKL) + m<JKN = 180
2(3x+5) + 8x + 2 = 180
6x + 10 + 8x + 2 = 180
14x + 12 = 180
14x = 168
    x = 12

so 
 m<MKN = m<MKL = 3x + 5 = 3(12) + 5 = 36 + 5 = 41

answer
b. 41

7)

2 supplementary has sum = 180
x + x + 14 = 180
2x + 14 = 180
2x = 166
  x = 83
  x + 14 = 83 + 14 = 97

2 angles are 83 and 97

answer
b. 83, 97
7 0
3 years ago
Congruent Triangles will mark brainiest with thorough explanation.
klasskru [66]

ASA

Angle-Side-Angle

AAS is the same but the order in different.

SAS is a no because there are no two S.

Can't determine bah! You can determine.

PLEASE BRAINLIEST

4 0
2 years ago
Read 2 more answers
Line passing through (2,5) and the m= -5/6
kiruha [24]

Answer:

y - 5 = (-5/6)(x - 2)

y - 5 = (-5/6)x + 10/6

y - 30/6 = (-5/6)x + 10/6

y = (-5/6)x + 20/3

Step-by-step explanation:

5 0
3 years ago
Natasha spends nine dollars for supplies to make necklaces that she sells for two dollars each. Her profit is given by the expre
Vera_Pavlovna [14]
The amount of money  for each necklace sold
4 0
3 years ago
Read 2 more answers
Other questions:
  • A parking garage has spaces for 70 cars and charges each driver $6 per day for parking. If the garage is full, how much more wou
    9·2 answers
  • ASAP!!! PLEASEEE!!!
    10·1 answer
  • Find ​(a) the slope of the curve at the given point​ p, and ​(b) an equation of the tangent line at p. y=−2−9x2​; ​p(2​,−38​)
    12·1 answer
  • What is |27| ? find the ansrew
    7·2 answers
  • Please help me with all 3 parts! :
    11·1 answer
  • About 25% of the students in Mr. Goodman's class got an Aon their last math test. Of those, 50% are girls. The class has 12 girl
    7·1 answer
  • Heyyyy are you good at word problems? Well you will get 20 points if you get this correct
    7·1 answer
  • Find the domain when f (x) = 5.<br> х<br> -5<br> -1<br> 9<br> 4<br> 5<br> 8<br> f(x) -6<br> -6 | 0
    5·1 answer
  • For the area of the rectangle is 10 square inches. Determine both dimensions of the length is 8 inches les than than twice the w
    13·1 answer
  • Which of these procedures is NOT the same as multiplying a whole number by 1,000?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!