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
TEA [102]
3 years ago
10

Solve for z: −0.25z=−1.25 z=?

Mathematics
1 answer:
lakkis [162]3 years ago
7 0

- 0.25z =  - 1.25 \\ \Leftrightarrow \: z =  \frac{ - 1.25}{ - 0.25}  =  \frac{ -  \frac{5}{4} }{ -  \frac{1}{4} }  = 5

You might be interested in
×1.4=0.4845 first missing number <br>​
Alenkinab [10]

Answer:

the answer is x=1.21125

4 0
3 years ago
a car can complete a journey of 300 km with a speed of 60 km per hour I) how much does it take the to complete the journey and w
Verdich [7]

Step-by-step explanation:

First step:

Distance = 300km

Speed = 60km/hr

We know,

Using Speed = Distance ÷ Time

Time = Distance ÷ Speed

we have Total Time = 300÷60

Total Time = 5hr

Again,

Distance = 200km. (Time = 5hr,

Speed =? Distance = 200)

Speed = Distance÷ Time

= 200÷5

= 40km/hr

6 0
3 years ago
Consider a normal population with the mean of 40 and standard deviation of 10. A random sample of was selected: 39.2, 45.7, 27.4
Tems11 [23]

Answer:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

And replacing we got:

\bar X= 38.91

And we can find the bias with this formula:

Bias= \bar X -\mu

And replacing we got:

Bias = 38.91 -40 = -1.09

Step-by-step explanation:

For this problem we know that the random variable of interest follows this distribution:

X \sim N(\mu =40, \sigma= 10)

And we have the following random sample given:

39.2, 45.7, 27.4, 25.9, 25.1, 46.3, 42.9, 49.0, 40.6, 47.0

And we can calculate the sample mean with the following formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

And replacing we got:

\bar X= 38.91

And we can find the bias with this formula:

Bias= \bar X -\mu

And replacing we got:

Bias = 38.91 -40 = -1.09

5 0
3 years ago
I NEED HELP NOW PLEASE
Lera25 [3.4K]

Answer

the answer is C

Step-by-step explanation:

nothing

3 0
2 years ago
Read 2 more answers
A box is sitting on the floor. The box was then pulled with a force, Ft. The box did not move. The free-body diagram of the box
WINSTONCH [101]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Joe makes $1,298.50 in one week. How much does he make in one day?
    12·1 answer
  • Item
    14·1 answer
  • If number is decreased by 14, the result is 24​
    14·2 answers
  • How to graph 3 ordered pairs
    14·2 answers
  • This is the hardest question on here and it’s worth points so I need help
    5·2 answers
  • In ABC, b = 68 inches, B=65° and C=93º. Find the length of a, to the nearest<br> inches
    12·1 answer
  • Identify a transformation of the function f(x) = x2 by observing the equation of the function g(x) = (x - 1)
    11·1 answer
  • Marcus plots the point (4, 7) in Quadrant I on the coordinate plane. Nicole then plots the point (4, –3) in Quadrant IV of the s
    8·1 answer
  • The dimensions of a building are 300 meters by 100 meters. If one centimeter represents
    9·1 answer
  • Hazel knits 5 centimeters of scarf eachnight. After 5 nights of knitting, how manycentimeters of scarf will Hazel have knit into
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!