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
attashe74 [19]
3 years ago
12

Which statement must always be true?

Mathematics
1 answer:
Gennadij [26K]3 years ago
6 0
the statement c will always be true in the end
You might be interested in
Substitute the value n = 4 in the expressions<br><br>2n<br>n + 2<br>3(n+4)​
Lelu [443]

Step-by-step explanation:

Given n = 4

2n = 2* 4= 8

n + 2 = 4 + 2 = 6

3(n + 4) = 3( 4 + 4) = 3 * 8 = 24

Hope it will help :)

4 0
2 years ago
Solve this equation 3x-√6y=3​
Hunter-Best [27]

Answer:

Step-by-step explanation:

3

x

−

6

y

=

3

Rewrite in slope-intercept form.

Tap for more steps...

y

=

1

2

x

−

1

2

Using the slope-intercept form, the y-intercept is  

−

1

2

.

b

=

−

1

2

Tap for more steps...

y

=

1

2

x

−

1

2

Using the slope-intercept form, the slope is  

1

2

.

m

=

1

2

3 0
3 years ago
2/5 of a class are girls. 3/4 of the boys are called Paul. What fraction of the whole class is not called Paul?
Novay_Z [31]

Answer:

1/4

Step-by-step explanation:

3/4 + 1/4 = 4/4

7 0
3 years ago
Read 2 more answers
Graph the solution set for the inequality z-4≤3
OleMash [197]

Answer:

  see below

Step-by-step explanation:

Add 4 to find the solution:

  z ≤ 7

The value 7 is included in the solution set, so there will be a solid dot at that point. Numbers less than 7 are also included in the solution set, so the number line will be shaded to the left of that solid dot.

6 0
3 years ago
Show that the following functions are probability density functions for some value of k and determine k. Then, determine the mea
lord [1]

Answer:

a) 17.5

b) 15.6

c) 13.3

d) 21.51

Step-by-step explanation:

The given function is equal to:

f(x)=kx^2

where

\int\limits^y_0 {kx^{2} } \, =1

where y=23

Clearing k=0.00025

a) Ex=\int\limits^y_0 {xf(x)} \, dx =\int\limits^y_0 {x*0.00025x^{2} } \, dx =17.5

b)Vx=Ex^{2} -(Ex)^{2} =\int\limits^y_0 {x^{2}f(x) } \, dx-17.5^{2}  =\int\limits^y_0 {x^{2} *0.00025x^{2} } \, dx -17.5^{2} =321.82-306.25=15.6

c) The function is equal to:

f(x)=k(1+2x)

\int\limits^y_0 {k(1+2x)} \, =1

where y=20

k=0.0024

Ex=\int\limits^y_0 {xf(x)} \, dx =\int\limits^y_0 {x*0.0024(1+2x)} \, dx =13.3

d) Vx=Ex^{2} -(Ex)^{2} =\int\limits^y_0 {x^{2} f(x)} \, dx -13.3^{2}=\int\limits^y_0 {x^{2} *0.0024(1+2x)} \, dx-13.3^{2}   =198.4-176.89=21.51

8 0
3 years ago
Other questions:
  • Find the circumference of the circle to the nearest tenth.
    5·1 answer
  • The ratio of marbles to stones in a large pot 6 to 7. if there are 42 marbles, then how many stones are there
    11·1 answer
  • PLS HELP MEEE!!! Susan earned 3,528 frequent flyer miles last year. In January she earned 526 more. In order to fly to Spain for
    13·1 answer
  • If point A is between B and C then BA + AC = BC. always sometimes never
    14·2 answers
  • Is this statement true or false? A regular triangle has four lines of symmetry.
    11·2 answers
  • In Livingston the library is 8 miles due south of the courthouse and 15 miles due west of the community swimming pool what is th
    6·1 answer
  • What are the excluded values of the fraction x+6/4x
    12·1 answer
  • 5. Write 2/3 and 3/4 as equivalent fractions using a common denominator.​
    6·2 answers
  • Simplify the problem thank you
    11·2 answers
  • You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!