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
Rufina [12.5K]
3 years ago
9

At noon, a tank contained 5 cm of water. After several hours, it contained 4 cm of water. What is the percent decrease of water

in the tank?​
Mathematics
1 answer:
dolphi86 [110]3 years ago
6 0

Answer:

2cm I think sorry If its wrong

You might be interested in
this table shows input and output values for a linear function f(x). What is the difference of outputs for any two inputs that a
Solnce55 [7]
The answer is 0.5.

X is the input and f(x) is the output. Between -3 and -2 the difference is 0.5. Because it goes from -0.5 to 1
5 0
3 years ago
Read 2 more answers
Compute i^1+i^2+i^3....i^99+i^100
fgiga [73]

Good morning ☕️

Answer:

<h3>i¹ + i² + i³ +. . .+ i⁹⁹ + i¹⁰⁰ = 0</h3>

Step-by-step explanation:

Consider the sum S = i¹ + i² + i³ +. . .+ i⁹⁹ + i¹⁰⁰

S =  i¹ +  i² +  i³ + . . . + i⁹⁹  +  i¹⁰⁰

S = a₁ + a₂ + a₃ +. . . + a₉₉ + a₁₀₀

then, S is the sum of 100 consecutive terms of a geometric sequence (an)

where the first term a1 = i¹ = i  and the common ratio = i

FORMULA:______________________

S=(term1)*\frac{1-(common.ratio)^{number.of.terms}}{1-(common.ratio)}

_______________________________

then

S=i*\frac{1-i^{100} }{1-i}

or i¹⁰⁰ = (i⁴)²⁵ = 1²⁵ = 1  (we know that i⁴ = 1)

Hence

S = 0

7 0
3 years ago
What are the solution(s) to the quadratic equation 40 - x2 = 0?
Zanzabum

Answer:

  x=\pm2\sqrt{10}

Step-by-step explanation:

You want to solve ...

  40 -x^2=0\\\\40=x^2\qquad\text{add $x^2$}\\\\\pm\sqrt{40}=x\qquad\text{take the square root}\\\\\boxed{x=\pm2\sqrt{10}}\qquad\text{simplify}

5 0
3 years ago
20 POINTS!! EASY QUESTION! WILL MARK BRAINLIEST!! READ THE INFO! THEN FILL IN THE BLANKS!
LUCKY_DIMON [66]

To find the unit rate in cost per hour, you will write the amount of money over the total time for each class. Then divide the cost by the time to find the unit rate.


New Steps: $7.50/1.5 hours = $5 per hour


Stepping High: $6.50/1.25 hours = $5.20 per hour

8 0
3 years ago
Read 2 more answers
(1.02)
AVprozaik [17]

Answer:

-14

Step-by-step explanation:

3r2-5s+6t

3.2.2-5(-4)+6.(-1)

12-20-6

12-26

-14

7 0
3 years ago
Read 2 more answers
Other questions:
  • Jenny's weight is 65kg. 1stone=14 pounds. what is jenny's weight in stonesand pounds​
    13·1 answer
  • 3/5 of the class were boys. The teacher divided the boys equally into groups so the each group of boys had 1/10 of the number of
    11·1 answer
  • Write the equation 2y - 4x = 5 in the form y = mx + b
    10·2 answers
  • What is the answer to 7/8 times 2/9
    9·2 answers
  • Solve: 0.5a+2.54=0.8a+4.94.
    15·2 answers
  • Estimate by clustering: 56.9, 63.2, 59.3, 61.1<br> A. 240.0<br> B. 225.0<br> C. 200.0<br> D. 250.0
    11·2 answers
  • The amount of time it takes Heather to cook dinner is directly proportional to the number of ingredients involved. If it takes h
    10·2 answers
  • Plz help
    15·1 answer
  • 5 in.
    6·2 answers
  • I need help answering this question for my geometry homework
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!