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
shepuryov [24]
2 years ago
14

Insert 2 sets of parentheses to make each sentence true: 2 x 14 - 9 - 17 - 14 = 7

Mathematics
1 answer:
Mandarinka [93]2 years ago
6 0
It’s most definitely C
You might be interested in
Problem 1.(32 points) A random sample of 100 Uber rides in Chicago has on average 5.4miles per ride. Assume the distribution of
marshall27 [118]

Answer:

a) CI = ( 5,1 ; 5,7 )

b) SE =  0,1  

Step-by-step explanation:

a) Sample random     n  = 100

Mean  =  μ = 5,4

Standard deviation   s = 1,3

CI = 99 %    α = 1 %   α = 0,01     α/2 =  0,005

z(c) for  0,005 is from z-table    z(c)  = 2,575

z(c)  =  ( X - μ ) /s/√n          CI  =  μ ± z(c) * s/√n

CI =  5,4 ± 2,575* 1,3/10

CI = 5,4 ± 0,334

CI = ( 5,1 ; 5,7 )

b) SE = Standard deviation / √n

SE = 1,3 /10       SE =  0,1  

We can support that with 99 % of probability our random variable will be in the CI.

6 0
2 years ago
Help me with this question, please!
AURORKA [14]

Answer:

3,432 m²

Step-by-step explanation:

The amount of aluminum in square meters needed to make the mailboxes = 1863(surface area of each mailbox)

Surface area of each mail box = ½(surface area of cylinder) + (Surface area of rectangular prism/box - area of the surface of the box that joins the half-cylinder)

✔️Surface area of ½-cylinder = ½[2πr(h + r)]

r = ½(0.4) = 0.2 m

h = 0.6 m

π = 3.14

Surface area of ½-cylinder = ½[2*3.14*0.2(0.6 + 0.2]

= 0.628(0.8)

Surface area of ½-cylinder = 0.5024 m²

✔️Surface area of the rectangular box/prism = 2(LW + LH + WH)

L = 0.6 m

W = 0.4 m

H = 0.55 m

Surface area = 2(0.6*0.4 + 0.6*0.55 + 0.4*0.55)

Surface area of rectangular box = 1.58 m²

✔️Area of the surface joining the half cylinder and the box = L*W = 0.6*0.4 = 0.24 m²

✅Surface area of 1 mailbox = (0.5024) + (1.58 - 0.24)

= 0.5024 + 1.34

= 1.8424

Amount of aluminum needed to make 1863 mailboxes = 1863 × 1.8424 = 3,432.3912

= 3,432 m²

8 0
3 years ago
The sale price of a bike is $189.50. The sale tax is 5%. What is the total price?
Roman55 [17]
It would be $947.50 because you would multiply $189.50 by 0.05.
3 0
3 years ago
Read 2 more answers
Greatest Common Factor (GCF)<br> 1. 12a - 27
Ilya [14]

Answer:

  3

Step-by-step explanation:

The factors of 12a are ...

  2×2×3×a

The factors of 27 are ...

  3×3×3

The only common factor is 3.

_____

  12a -27 = 3(4a -9)

8 0
2 years ago
PLEASE HELP ASAP
VARVARA [1.3K]

Answer:

okok so the anwser is 1+1

Step-by-step explanation:

1 and add another is 2

boom.

:)

3 0
2 years ago
Other questions:
  • How do you identify the angle of rotation including the direction
    13·1 answer
  • John wants to make two frames for his artwork. One frame requires 3 1/2 feet of molding the other requires 4 2/3 feet of the sam
    8·1 answer
  • To get to the next term in this sequence, multiply the last term by 2.5. What is the value of the next term?
    12·1 answer
  • 8 added to 7 and x cubed
    12·1 answer
  • A recipe that serves four people calls for 2 1/4 cups of butter. How many cups of butter needed to serve 10 people? Show your wo
    8·1 answer
  • Four times a number +3 is the same as 5+ the number.
    6·1 answer
  • A square has an area of 25yd what is the length of each side
    5·2 answers
  • A rectangular sheet of paper has an area of 1/2 square feet. The length of the paper is 2 feet. What is the width of the paper i
    10·2 answers
  • Radio stations in a certain country use a sequence of 5 or 6 letters as their station identification call letters. The first let
    8·1 answer
  • hunter has a jar of 368 nickels and dimes. the total value of coins is $28.40. which system of equations below would be the best
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!