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
RoseWind [281]
2 years ago
14

Explain how you could use the distributive property to find how many gallons of water are pumped out of the black hole in 2 1/2

minutes
Mathematics
1 answer:
Otrada [13]2 years ago
6 0

Answer:

by counting the numbers

Step-by-step explanation:

1 + 1 + 1 + 1 + 1 etc

You might be interested in
The number of violent crimes committed in a day possesses a distribution with a mean of 2.8 crimes per day and a standard deviat
Deffense [45]

Answer:

The distribution is approximately normal with mean = 2.8 and standard error = 0.4

Step-by-step explanation:

We are given;

Mean; μ = 2.8

Standard deviation; σ = 4

Sample size; n = 100

Now, the central limit theorem states that the sample mean with a sample size(n) from a population mean (μ) and population standard deviation(σ) will, for large value of n, have an approximately normal distribution with mean μ and standard error as (σ/√n)

The sample size is 100 and thus it's very large because it's bigger than minimum of 30 for approximate distribution.

Thus, SE = (σ/√n) = 4/√100 = 4/10 = 0.4

Thus,from the central limit theorem I described, we can say that the distribution is approximately normal with mean = 2.8 and standard error = 0.4

8 0
3 years ago
Sec^6x (secxtanx) - sec^4x (secxtanx) = sec^5x tan^3x
Olegator [25]
Let E the expression of the left side of the equation:

E=\sec^6(x) (\sec (x)\tan (x)) - \sec^4(x) (\sec (x)\tan (x))\\\\
E=\sec^7(x)\tan(x)-\sec^5(x)\tan(x)\\\\
E=\sec^5(x)\tan(x)(\sec^2(x)-1)

We must know that \tan^2(x)+1=\sec^2(x)\iff \sec^2(x)-1=\tan^2(x). So, using in the equation above:

E=\sec^5(x)\tan(x)(\underbrace{\sec^2(x)-1}_{\tan^2(x)})\\\\
E=\sec^5(x)\tan(x)(\tan^2(x))\\\\
\boxed{E=\sec^5(x)\tan^3(x)}

Then, the equation is true.
3 0
3 years ago
Find an equation for the line below.
MrMuchimi
Y=1/3x-3/4. I believe is the right equation of the line
5 0
3 years ago
Read 2 more answers
2x² + x + 10 = 0 dengan rumus abc​
Gala2k [10]

Answer:

a = 2, b = 1 and c = 10

Step-by-step explanation:

The given equation is 2x² + x + 10 = 0 ...(1)

The general form of a quadratic equation is given by :

ax²+bx+c=0 ...(2)

We need to find the values of a,b and c in the given equation.

Comparing equation (1) and (2),

a = 2, b = 1 and c = 10

7 0
3 years ago
Pls help me right now! and answer correctly​
Bingel [31]

Answer:

8.a 9.d 10.a 11.b

Step-by-step explanation:

this is multiple one .so no steps

5 0
2 years ago
Other questions:
  • What is the length of PR?
    15·2 answers
  • Find the distance CA
    5·1 answer
  • A number is k units to the left of 0 on the number line . Describe the location of its opposite
    13·1 answer
  • What is 24 = -3 ( x - 2 ) + 3
    12·1 answer
  • Santa Claus is assigning elves to work an eight-hour shift making toy trucks. Apprentice earn five candy canes per hour but can
    5·1 answer
  • How do you do this?<br> Please help
    8·2 answers
  • MATCH THE number WITH ITS OPPOSITE
    12·1 answer
  • X−6y=19 solve for y.
    6·1 answer
  • SEMESTER 2 Benitez thrax
    10·1 answer
  • You enter a room. 2 dogs, 4 horses, one giraffe, and a duck are laying on a bed. 3 chicken are flying over a chair. How many leg
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!