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
Korolek [52]
2 years ago
7

Evaluate the following expression 1/5^-2

Mathematics
1 answer:
Kitty [74]2 years ago
6 0

Answer:

25

Step-by-step explanation:

If (1/5)^2 equals 1/25, then (1/5)^-2 should be the opposite.

(1/5)^-2 equals 25

You might be interested in
Your company is considering submitting a bid on a major project. You determine that the expected completion time is 130 weeks an
Olenka [21]

Answer:

Option C) 146.5

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 130 weeks

Standard Deviation, σ = 10 weeks

We are given that the distribution of completion time is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(X<x) = 0.95

We have to find the value of x such that the probability is 0.95

P(X < x)  

P( X < x) = P( z < \displaystyle\frac{x - 130}{10})=0.95  

Calculation the value from standard normal z table, we have,  

P(z

\displaystyle\frac{x - 130}{10} = 1.645\\x = 146.45 \approx 146.5  

The project should be completed in 146.5 weeks or less.

Hence, 146.5 weeks should be set the due date such that there is a 95 percent chance that the project will be finished by this time.

7 0
3 years ago
Mid Linear Equation // ALGEBRA I HELP PLSS
Rzqust [24]

Answer:

1. y = -125000x + 700000

2. Negative

3. Positive

Step-by-step explanation:

1. The no. Of gallons before irrigation

= 700000

After irrigation = 200000

This means that there was a reduction of 500000 gallons in 4 hours which indicates that 125000 gallons were used (on an average) in 1 hour

So the equation is

y = 700000 - 125000x

Hope this helps

Can u plz mark me as brainliest?

My rank needs to increase so plz

8 0
3 years ago
Please help.................
Leni [432]

Answer:

Is that thick line an equal or a minis sign? I cant see it.

4 0
2 years ago
What is x in the equation 4+1/4+3=10
Zepler [3.9K]

Answer:

There is no x in this equation

7 0
3 years ago
Hello, I need some help
____ [38]
Graph shows x at 6 and y at -2

8 0
2 years ago
Other questions:
  • The contrapositive of the following statement is true “If two angles are vertical angles, then they are congruent”
    14·1 answer
  • A group of thirty people is selected at random. What is the probability that at least two of them will have the same birthday? (
    5·1 answer
  • 1. Based on the information in the table, is the relationship between time
    11·1 answer
  • Help please with this
    13·1 answer
  • What is 22 times 2 do it quickly
    12·2 answers
  • You are considering two investment opportunities. For investment A there is a 25% chance that you lose $20,000, a 50% chance tha
    11·2 answers
  • Which article headline indicates a correlation between two variables?
    13·2 answers
  • What is the image of the point (-8,0) after a rotation of 270° counterclockwise
    13·2 answers
  • Find the probability that a randomly selected point within the square falls in the blue shaded area (circle). r = 2 in [? ]% Rou
    5·1 answer
  • 5m + 26 - 3p when m = 3 and p = 4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!