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
loris [4]
3 years ago
15

Which expression is equivalent to 5.42 x 10-4?

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
6 0

Answer: 0.000542

Step-by-step explanation: the -4 is the exponent so 10^-4 makes the decimal move to the left 4 times thus it gives you the answer: 0.000542

storchak [24]3 years ago
3 0

Answer:

54.2 - 4

Because when you multiply 5.42 and 10 and subtract it by 4 the answer is the same.

You might be interested in
C/2+5=1 what does C equal?
8_murik_8 [283]
C/2 + 5 =1
=> c/2 = 1 - 5 
=> c/2 = -4
=> c = -4 * 2 
=> c =  -8

hope it helps !!
7 0
3 years ago
. A circulating pump consumes 450 W for 24 hr a day. a. Determine the energy consumed for a one-year period. b. Calculate the ut
Anit [1.1K]

Answer:

  a. 3942 kWh

  b. $473.04

  c. 1314 kWh

  d. $157.68

Step-by-step explanation:

<h3>a. </h3>

There are 1000 W in 1 kW, so 450 W = 0.450 kW. The energy used per day is ...

  (0.45 kW)(24 h) = 10.8 kWh . . . . energy per day

Then in a 365-day year, the energy used is

  (365 da/yr)(10.8 kWh/da) = 3942 kWh/yr

__

<h3>b.</h3>

At the rate of $0.12/kWh, the cost of running the pump is ...

  ($0.12/kWh)(3942 kWh/yr) = $473.04/yr

__

<h3>c.</h3>

Switching the pump off for 1/3 of the time will save 1/3 of the energy found in part (a):

  1/3(3942 kWh) = 1314 kWh . . . . energy saved by switching off the pump

__

<h3>d.</h3>

The savings will be 1/3 of the cost of running the pump full time:

  1/3($473.04/yr) = $157.68/yr

4 0
2 years ago
What is the expression (x+1)(x2+3x+2) as a polynomial in standard form?
andrezito [222]

Step-by-step explanation:

hope u like it.......

3 0
3 years ago
Diana baked 36 cookies with 4 scoops of flour. How many scoops of flour does Diana need in order to bake 45 cookies? Assume the
max2010maxim [7]

Answer:

5 scoops of flour

Step-by-step explanation:

36 divided by 4 is 9

9 x 5 is 45

5 0
3 years ago
Write in an algebraic expression
SpyIntel [72]
What was the answer to the proble above
6 0
3 years ago
Other questions:
  • A dolphin is swimming 4 feet below the surface of the water. the number -4 represents the dolphins position relative to the surf
    12·1 answer
  • When originally purchased, a vehicle costing $25,200 had an estimated useful life of 8 years and an estimated salvage value of $
    8·1 answer
  • DESPERATE FOR HELP!!!<br> MATHS!!!<br> WILL AWARD BRAINLIEST!!!
    11·1 answer
  • In the diagram below, \overline{XY}
    15·1 answer
  • HURRY PLEASE DON'T HAVE MUCH TIME TO FINISH!
    5·2 answers
  • Plzzz answer thisss
    15·1 answer
  • A news site offers a subscription that costs $28.50 for 6 months. What is the unit price per month.
    14·1 answer
  • The term at position n in a sequence is 3n
    12·1 answer
  • Points A,M and P are collinear with M in between A and P. If AP=29, AM =5x-3 and MP=8x+6, what does MP=?
    13·1 answer
  • Y =40x^2 find X when y =10,360,1000,4000​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!