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
Iteru [2.4K]
3 years ago
10

Twice a number decreased by seven

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0
The equation would be 2n-7
You might be interested in
If f(x)=3/x and g(x)=3x, which of the following statements is true?
bagirrra123 [75]

Answer:

d. (g*f)(-9)=-1

Step-by-step explanation:

In this problem, we have two functions:

f(x)=\frac{3}{x}

and

g(x)=3x

The notation:

(f*g)(x) represents the composite function of f and g; this can be calculated by using the output of g(x) as input for f(x), in other words:

(f*g)(x)=f(g(x))

Simiarly, the notation (g*f)(x) can be calculated by using the output of f(x) as input for g(x), mathematically:

(g*f)(x)=g(f(x))

Using the definitions of f(x) and g(x), we can derive an expression for the two composite functions here:

(f*g)(x)=f(g(x))=\frac{3}{g(x)}=\frac{3}{3x}=\frac{1}{x}

And

(g*f)(x)=3(f(x))=3(\frac{3}{x})=\frac{9}{x}

Now we can analyze the given statements:

a. (f*g)(2)=2  --> FALSE, because (f*g)(2)=\frac{1}{2}

b. (g*f)(2)=0  --> FALSE, because (g*f)(0)=\frac{9}{0}=\infty

c.(f*g)(9)=1  --> FALSE, because (f*g)(9)=\frac{1}{9}

d. (g*f)(-9)=-1 --> TRUE, because (g*f)(-9)=\frac{9}{-9}=-1

6 0
4 years ago
In a sweepstakes sponsored by Gemini Paper Products, 175,000 entries have been received. If 1 grand prize is drawn, and 3 first
Allushta [10]

Answer:

The correct answer are given by (A) \frac{1}{175000} ; (B) \frac{429}{175000}.

Step-by-step explanation:

Total number of entries to the sweepstakes offered by Gemini Paper Products = 175,000.

Total number of prizes to be awarded includes 1 grand prize, 3 first prizes, 25 second prizes and 400 third prizes = 1 + 3 + 25 + 400 = 429.

(A) Required Probability for a person who has put one entry to win the grand prize is given by the fraction \frac{1}{175000}.

(B) Required Probability for a person who has put one entry to win any prize offered is given by \frac{429}{175000}.

5 0
3 years ago
If it’s right I will give Brainlyist
larisa [96]

Answer:

The only one that is true is J

Step-by-step explanation:

if a is between 0 and 1, the image of the polygon is smaller than the polygon.

6 0
3 years ago
Hello! This is my first question ever. I am in AP Calculus and am working on a redo. I know the correct answer but don't know ho
Kipish [7]
Since \Delta x=\dfrac{b-a}n, and you have a corresponding term in the given Riemann sum of \dfrac5n, you know the integral is being taken over an interval of length 5, so you can omit the second choice.

Next, f(a+i\Delta x) corresponds to a=3 with \Delta x=\dfrac5n. The fact that a=3 alone tells you that the interval of integration starts at 3, and since we know the interval has length 5, that leaves the first choice as the correct answer.
6 0
3 years ago
The graph below shows the distance (y) between Hannah and her home, in km, after a certain time (x), in hours:
natka813 [3]
The best answer is
B)  <span>It is increasing in the interval 2 < x < 3 hours.

The time in which Hanna's distance is decreasing is also the interval in which the slope is negative. This happens on the interval 2 < x < 3 hours. </span>
8 0
4 years ago
Read 2 more answers
Other questions:
  • Need help just give me he answer
    14·1 answer
  • Plz help ill give brainlist to you
    7·1 answer
  • What is m&lt;1 if m&lt;3=80
    9·1 answer
  • Find the area of the trapezoid. leave your answer in the simplest radical form.
    13·2 answers
  • IM NOT SURE IF THE ANSWER IS ACTUALLY C
    12·1 answer
  • What is the area of the figure ?
    6·1 answer
  • Suppose you have a collection of 24 candles. There are 6 candles each of 4 different colors, and they are identical in every oth
    8·1 answer
  • Classify the following triangle . check all that apply​
    7·2 answers
  • Solve each system of linear equations by using substitution method.
    7·2 answers
  • Pls help!! need answer asap!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!