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
ahrayia [7]
3 years ago
14

Can someone do help with any of these please?

Mathematics
1 answer:
laiz [17]3 years ago
8 0
39.

|z+7|=12/3
|z+7|=4
z+7=4
-(z+7)=4
solve the first equation:
z+7=4
z=-3
solve the second equation:
-(z+7)=4
z=-11

z=-11,-3

You might be interested in
Somebody help me out
Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

what math is this?

5 0
3 years ago
suppose that the distribution for total amounts spent by students vacationing for a week in florida is normally distributed with
pentagon [3]

The probability that the SRS of 10 students will spend an average of between 600 and 700 dollars is 0.8132.

Let x be the total amount spent by students.

x follows normal distribution with mean μ = 650,

                                  standard deviation δ = 120

We take a simple random sample of size n = 10

We are asked to find average spending of 10 students ( x ) is between 600 and 700

We have to find P( 600 <= x <= 700)

According to the sampling distribution of the sample mean x, it follows an approximately normal distribution with mean μ{x} = μ and standard deviation  δ{x} = {δ}/{√n}

Therefore here mean of x,( μ{x} ) = 650 and

standard deviation of x, δ{x} = {120}/{√10} = 37.9473

The probability that the SRS of 10 students will spend an average of between 600 and 700 dollars is,

Let Z= x - μ / δ

Z₁ = 600 - 650 / 37.9473 = -1.32 similarly

Z₂ = 700 - 650 / 37.9473 = 1.32

From standard normal distribution table, P( -1.32 <  x  <  1.32) = 0.8132

The probability that the SRS of 10 students will spend an average of between 600 and 700 dollars is 0.8132

To learn more about Normal distribution click here:

brainly.com/question/15103234

#SPJ4

3 0
1 year ago
A mural inspired by photo graph measures 107 inches by 180 inches.the scale factor is 12.what are the dimensions of the photogra
laila [671]
\bf \cfrac{mural}{photo}\qquad \cfrac{12}{1}\implies \stackrel{mural}{12}:\stackrel{photo}{1}\qquad \qquad \cfrac{\stackrel{width}{107}}{w}=\cfrac{12}{1}\implies \cfrac{107\cdot 1}{12}=w&#10;\\\\\\&#10;\cfrac{\stackrel{height}{180}}{h}=\cfrac{12}{1}\implies \cfrac{180\cdot 1}{12}=h
5 0
3 years ago
Question: What is 7 /16 written as a decimal? Show your work.
Burka [1]
0.4375 because if you divide it by its self youll get it 

4 0
3 years ago
Read 2 more answers
What is the simplified form of i14
cestrela7 [59]

Answer:

-1

Step-by-step explanation:

Rewrite i 14 as ( i 4 ) 3 × i 2 . If i = √ − 1 , then i 2 = − 1 .

From here ( i 2 ) 2 = ( − 1 ) 2 , so i 4 = 1 . If i 4 = 1 ,

then we can say that: i 14 = ( 1 ) 3 × i 2 = i 2 = − 1

7 0
3 years ago
Read 2 more answers
Other questions:
  • The radius of the inscribed circle is cm, and the radius of the circumscribed circle is cm.
    13·2 answers
  • If x represents time, the average rate of change of the function f(x) in the first three seconds is ___.
    12·2 answers
  • Factor. If the polynomial is not factorable write prime . 3. 3c^2-8c+5 5. 5y^2+4y-1 7. 5u^2-6u-2 9. 7x^2+8x+1 11. 5x^2-17x+6 SHO
    14·1 answer
  • What does |a|=|b| mean?
    15·2 answers
  • HELP PLEASE........ on these 2​
    13·1 answer
  • Describe how you would classify the shape below on the hierarchy. Start at the top and describe how you know if the shape fits i
    12·1 answer
  • The perimeter of a rectangle is 30 cm. The height is 5 cm . what is the area of that rectangle.​
    6·2 answers
  • Convert 5.82% to an equivalent decimal​
    13·2 answers
  • Select the correct ans
    11·1 answer
  • Which regions have population ls with 7 as the power of 10
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!