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
Sav [38]
3 years ago
13

If f(n)=n*2-n, then f(-4)is

Mathematics
1 answer:
katen-ka-za [31]3 years ago
5 0

Answer:

20

Step-by-step explanation:

f(n)=n^2-n

f(-4)=(-4)^2-(-4)

f(-4)=16+4

f(-4)=20

You might be interested in
Y = -8x2 + 665x – 5754
Burka [1]

Answer:

Is the -8x2 a -8x squared? Because the answer of this problem can be different.

Step-by-step explanation:

3 0
3 years ago
Identify the variables in the following.<br> A) 4r- 3<br> B) x + 7
Doss [256]

A). 4r − 3

There are no like terms.

Answer:

= 4r − 3

B). x + 7

There are no like terms.

Answer:

= x + 7

4 0
3 years ago
Angel is x years old, in 15 years how old will Angel be?
Verizon [17]

The age would increase by 15 years that is, x+15

8 0
3 years ago
Find the area under the standard normal probability distribution between the following pairs of​ z-scores. a. z=0 and z=3.00 e.
prohojiy [21]

Answer:

a. P(0 < z < 3.00) =  0.4987

b. P(0 < z < 1.00) =  0.3414

c. P(0 < z < 2.00) = 0.4773

d. P(0 < z < 0.79) = 0.2852

e. P(-3.00 < z < 0) = 0.4987

f. P(-1.00 < z < 0) = 0.3414

g. P(-1.58 < z < 0) = 0.4429

h. P(-0.79 < z < 0) = 0.2852

Step-by-step explanation:

Find the area under the standard normal probability distribution between the following pairs of​ z-scores.

a. z=0 and z=3.00

From the standard normal distribution tables,

P(Z< 0) = 0.5  and P (Z< 3.00) = 0.9987

Thus;

P(0 < z < 3.00) = 0.9987 - 0.5

P(0 < z < 3.00) =  0.4987

b. b. z=0 and z=1.00

From the standard normal distribution tables,

P(Z< 0) = 0.5  and P (Z< 1.00) = 0.8414

Thus;

P(0 < z < 1.00) = 0.8414 - 0.5

P(0 < z < 1.00) =  0.3414

c. z=0 and z=2.00

From the standard normal distribution tables,

P(Z< 0) = 0.5  and P (Z< 2.00) = 0.9773

Thus;

P(0 < z < 2.00) = 0.9773 - 0.5

P(0 < z < 2.00) = 0.4773

d.  z=0 and z=0.79

From the standard normal distribution tables,

P(Z< 0) = 0.5  and P (Z< 0.79) = 0.7852

Thus;

P(0 < z < 0.79) = 0.7852- 0.5

P(0 < z < 0.79) = 0.2852

e. z=−3.00 and z=0

From the standard normal distribution tables,

P(Z< -3.00) = 0.0014  and P(Z< 0) = 0.5

Thus;

P(-3.00 < z < 0 ) = 0.5 - 0.0013

P(-3.00 < z < 0) = 0.4987

f. z=−1.00 and z=0

From the standard normal distribution tables,

P(Z< -1.00) = 0.1587  and P(Z< 0) = 0.5

Thus;

P(-1.00 < z < 0 ) = 0.5 -  0.1586

P(-1.00 < z < 0) = 0.3414

g. z=−1.58 and z=0

From the standard normal distribution tables,

P(Z< -1.58) = 0.0571  and P(Z< 0) = 0.5

Thus;

P(-1.58 < z < 0 ) = 0.5 -  0.0571

P(-1.58 < z < 0) = 0.4429

h. z=−0.79 and z=0

From the standard normal distribution tables,

P(Z< -0.79) = 0.2148  and P(Z< 0) = 0.5

Thus;

P(-0.79 < z < 0 ) = 0.5 -  0.2148

P(-0.79 < z < 0) = 0.2852

8 0
3 years ago
What is the slope- intercept form equation of the line that passes through (5, 7) and (8, 22)
kap26 [50]
M = (22 - 7)/(8 - 5) = 15/3 = 5 
<span>using point (5, 7) </span>
<span>y - 7 = 5(x - 5) in point-slope form </span>
<span>y - 7 = 5x - 25 </span>
<span>y = 5x - 18 in slope-intercept form.</span>
3 0
3 years ago
Other questions:
  • Whats the point and slope of the equation y + 9 = -2/3(x - 3)?
    13·1 answer
  • A scale drawing for the floor of a rectangular office shows the floor to be 33 feet long and 24 feet wide. The business wants to
    13·1 answer
  • The area of a rectangle is 15x^2+6x+7. The length of the rectangle is 5x^2+2x. What is the width?
    13·1 answer
  • 1/4(3c+5)-1/2(2c+3)=1/2<br><br> Please show some work so I can fiqure it out.
    6·2 answers
  • What is the equation of the line that has a slope of 3 and goes through the point (-3,-5)
    10·2 answers
  • There are 44 students going to see a movie. Each row holds 8 people. How many rows do they fill up?
    14·2 answers
  • Which of the following is larfest 15% 0.153 1/7 1/12
    14·2 answers
  • What number would represent the outlier in the following set of data?
    9·1 answer
  • Hi, i'm working on a presentation
    10·2 answers
  • Mr. Oppong makes monthly payments into his savings account. He saved Gh¢800.00 in the second month, Gh¢3,200.00 in the third mon
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!