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
Juli2301 [7.4K]
3 years ago
7

Alan thinks of a number. he squares it, then takes away 5, next multiplies it by 4, takes away 7, divides it by 3 and finally ad

ds 6. his answer is 9. what number did he start with? 1 2 3 4 5 6
Mathematics
2 answers:
miskamm [114]3 years ago
5 0
Its 3
3^2 = 9.. - 5 = 4... x 4 = 16... - 7 = 9/3 = 3.. + 6 = 9
Karolina [17]3 years ago
3 0
He started with 3. 3 X 3 = 9. 9 - 5 = 4. 4 X 4 = 16. 16 - 7 = 9. 9 divided by 3 = 3. 3 + 6 = 9.
You might be interested in
You have two exponential functions. One function has the formula g(x) = 3 x . The other function has the formula h(x) = 2-x . Wh
Vlada [557]

Answer:

see graph


Step-by-step explanation:

g(x) = 3^ x .

h(x) = 2^-x

We want to subtract them

f(x) = 3^x - 2^(-x)

I will rewrite without the negative exponent

f(x) = 3^x - (1/2)^(x)

Lets pick a couple of points

f(0)  = 3^0 - (1/2) ^ 0 = 1-1 = 0

As x gets large 3^x gets large and 1/2^x gets close to 0, so it will get large

As x goes to negative infinity, 3^x goes to zero and 1/2^ gets large  so we get - infinitity

5 0
2 years ago
X^100+1 divide by x+1​
timofeeve [1]

Answer:

x=-1

Step-by-step explanation:

\frac{x ^{100} + 1 }{x + 1}

x + 1 = 0

x =  - 1

7 0
2 years ago
How to solve x^2>4x+3
Papessa [141]
Treat this as you would the quadratic equation x^2 - 4x - 3 + 0.   Solve this by completing the square:

x^2 - 4x + 4 - 4 - 7 = 0

(x^2 - 4x + 4) = 11

    (x-2)^2 = 11, and so x-2 = plus or minus sqrt(11).

Graph this, using a dashed curve (not a solid curve).  Then shade the coordinate plane ABOVE the graph.
7 0
2 years ago
1/ab + a^2/b^2 <br> find the sum?
maxonik [38]

\dfrac 1{ab} + \dfrac{a^2}{b^2}\\\\\\=\dfrac{b+a^3}{ab^2}\\\\\\=\dfrac{a^3 +b}{ab^2}

7 0
1 year ago
Simplify.
pantera1 [17]
-12 + 9 - (-3) - 11

Remember PEMDAS: This is the order of operation.
P-Paragrahp
E-Exponent
M-Multiply
D-Divide
A-Add
S-Subtract

1st step: PEM
-(-3) is actually -1 * -3 = + 3

-12 + 9 + 3 - 11

2nd step: D is not possible, so we do A.
9 + 3 = 12

3rd Step: Subtract
12 - 12 - 11 = 0 - 11 = -11 CHOICE B. 

7 0
3 years ago
Other questions:
  • The graph of y=f(x) is shown below. Determine the value of x when f(x) =-5
    14·1 answer
  • Eight increased by the product of a number and 5 is at most -28 (translate the sentence into an inequality)
    5·1 answer
  • Please help! show work if possible​
    15·1 answer
  • What is the factored form of x2 – x – 2?
    5·2 answers
  • If the volume of the pyramid is 72cm3, what is it’s height in cm? A.3. B.9. C.12. D.18
    5·1 answer
  • What is every known number of \pi? If you have it please paste it in answer. :3
    8·1 answer
  • A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fai
    11·1 answer
  • Isolate the y 3x+y=5
    12·1 answer
  • How does the geography contribute to the economy of the land?
    13·1 answer
  • write a general formula to describe variation: S varies jointly with the inverse of the cube root of P and the inverse of the sq
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!