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
kari74 [83]
2 years ago
14

Si disponemos de 4 sillas y los simbolizamos por 4s y por otros lados tenemos 2 mesas los simbolizamos por 2m, al reducir los té

rminos semejantes obtendremos lo siguiente.
a) 45
b) 2m
c) 45 - 2m
d) 45 + 2m
Mathematics
2 answers:
Arisa [49]2 years ago
4 0
The answer is I had it before
Alja [10]2 years ago
3 0
It’s should be letter b I hope you have a great day
You might be interested in
9dx10=240 pls hurry
vaieri [72.5K]

Answer:

2.6 or \frac{8}{3}

Step-by-step explanation:

9d×10=240

÷10        ÷10

9d =24

÷9      ÷9

2.6 or \frac{8}{3}

8 0
2 years ago
The size of the left upper chamber of the heart is one measure of cardiovascular health. When the upper left chamber is enlarged
Ganezh [65]

Answer:

a) P [ X < 24 mm ] = 0,3015          or     P [ X < 24 mm ] =  30,15 %

b) P [ X > 32 mm ]  = 0,1251          or        P [ X > 32 mm ]  = 12,51 %

c) P [  25 < X < 30 ] = 0,4964      or     P [  25 < X < 30 ] = 49,64 %

d) z(s) = 0,84

Step-by-step explanation:

Normal Distribution    N (  μ₀  ;   σ )   is  N ( 26,5 ; 4,8 )

a) P [ X < 24 mm ] = ( X - μ₀ ) / σ

P [ X < 24 mm ] = (24 - 26,5)/ 4,8 = - 0,5208 ≈ - 0,52

P [ X < 24 mm ] = - 0,52  

And from z-table we find area for z score

P [ X < 24 mm ] = 0,3015          or     P [ X < 24 mm ] =  30,15 %

b)P [ X > 32 mm ]  =  1  - P [ X < 32 mm ]

P [ X < 32 mm ]  = ( 32 - 26,5 ) / 4,8

P [ X < 32 mm ]  = 5,5/4,8  =  1,1458 ≈ 1,15

P [ X < 32 mm ]  = 1,15

And from z-table  we get

P [ X < 32 mm ]  = 0,8749

Then:

P [ X > 32 mm ]  =  1  -  0,8749

P [ X > 32 mm ]  = 0,1251          or        P [ X > 32 mm ]  = 12,51 %

c) P [  25 < X < 30 ] = P [ X < 30 ] - P [ X < 25 ]

P [ X < 30 ]  = 30 - 26,5 / 4,8   =  0,73

From  z-table    P [ X < 30 ]  =  0,7673

P [ X < 25 ] = 25 - 26,5 / 4,8  = - 0,3125  ≈  - 0,31

From z-table  P [ X < 25 ] =  0,2709

Then

P [  25 < X < 30 ] =  0,7673 -  0,2709

P [  25 < X < 30 ] = 0,4964      or     P [  25 < X < 30 ] = 49,64 %

d) If  20 %

z- score for 20% is from z-table

z(s) = 0,84

6 0
3 years ago
A study of a population of 1,080 frogs revealed that 15 out of every 180 frogs in the population have spots on their back. Based
avanturin [10]
I think it’s 990 maybe not I did 1080/180=6 then 15*6=90 then did 1080-90=990 I think
8 0
3 years ago
40 - 10 + 20
marin [14]

Answer:

The answer is 50

Step-by-step explanation:

40-10=30

30+20=50

4 0
2 years ago
If CE=7 in and AE=23 in AC=
dusya [7]
I think it = 16 but then again I could be wrong
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression is equivalent to 5(x + 7)?
    7·2 answers
  • 25 POINTS PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • HELP PLEASE!! IM REALLY STUPID!! // You have nickels and dimes in your wallet with a total value of $1.10. You have 17 coins in
    5·1 answer
  • Find the value of x so that (x,-4) is on the line given by -2x + 3y = 6.
    11·1 answer
  • Determine the fraction for 0.54 in simplest form
    9·2 answers
  • Riding a proportion of 15 is 1 and a half percent of what number​
    11·1 answer
  • Pls help^^^^ <br> i dont understand this hw
    11·1 answer
  • I think its a because of the way it looks
    10·2 answers
  • The Brown’s used 50 feet of rope to surround their rectangular garden. The length of the garden is 4 times as much as its width.
    8·2 answers
  • How much lower was the 6 a.m temperature in juneau than in chicago
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!