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
geniusboy [140]
3 years ago
10

Evaluate the expression described below if the number is 4. The difference between a number squared and the number. A. 0 B. 4 C.

12 D. 20
Mathematics
1 answer:
svet-max [94.6K]3 years ago
5 0
What the above statement is saying is:
If the number is 4, find the difference between the square of the number (the number is 4) and the number itself (the number is still 4).

The square of the number is:
The number^2
= 4^2
= 4 × 4
= 16

The difference between the square of the number and the number is:
The number^2 - The number
= 16 - 4
= 12

Hope this helps! :)
You might be interested in
10 people can paint a building in 5 days. if each person painted as quickly as the others then how much of the building could 7
Paul [167]
So basically it takes 10 people to paint a whole building. Forget about the 5 days. That's just there to confuse you. You have to first find out how much of a building can one person paint so, 1/10. So that means that 7 people can paint 7/10 of a building in 5 days
8 0
3 years ago
Read 2 more answers
What is the slope of the line y = -5x +1 ?
laila [671]

Answer:

-5

Step-by-step explanation:

Remember the slope intercept form:

y = mx + b

m = Slope value

b = y-intercept

So in this case,

y = (-5)x + b

m = -5

b = 1

Thus the answer is -5

3 0
3 years ago
PLEASE HELP THANK YOU
arsen [322]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the Similarities.

Since here, first figure is a Triangle, hence similarity of a triangle is given by ratio of it sides and make them equate,

hence for,

1.) 16/12 = x/9 ===> 4/3 = x/9 ===> x = 9*4/3 ==> x = 36/3

hence the value of x is 12 , ===> x = 12 .

2.) here,in the case of a Reactangle the relation is such that, length = 2* breadth,

hence we apply the relation,

x = 2*4.5 ===> x = 9 units.

5 0
3 years ago
Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
julsineya [31]

Answer:

see below

Step-by-step explanation:

Dosage= 500 mg

Frequency= twice a day (every 12 hours)

Duration= 10 days

Number of dosage= 10*2= 20

residual drug amount after each dosage= 4.5%

We can build an equation to calculate residual drug amount:

d= 500*(4.5/100)*t= 22.5t, where d- is residual drug, t is number of dosage

After first dose residual drug amount is:

  • d= 500*0.045= 22.5 mg

After second dose:

  • d= 22.5*2= 45 mg

As per the equation, the higher the t, the greater the residual drug amount in the body.

Maximum residual drug will be in the body:

  • d= 20*22.5= 450 mg at the end of 10 days

Maximum drug will be in the body right after the last dose, when the amount will be:

  • 500+19*22.5= 927.5 mg
5 0
2 years ago
Will someone please solve this. Give answer in form of square root.
aleksklad [387]
The answer is : 46.4758001545 ( in square root )
3 0
3 years ago
Other questions:
  • Can someone help me please im very confused and please use step by step please<br><br> -2/3x+1&lt;7
    5·1 answer
  • Solve systems of equations by graphing
    10·1 answer
  • ALGEBRA 2 word PROBLEM HELP ME PLEASE !!!
    6·1 answer
  • Write a function rule for “The output is 5 less than the input.” Let x be the input and let y be the output.
    10·1 answer
  • Please help me idk this
    6·1 answer
  • What cause an anti immigrant sentiment to in crease in the us during the 1800?
    12·1 answer
  • HURRY PLEASE! i need this asap
    12·1 answer
  • What does 3+3 (a) simplify to when a=5
    12·2 answers
  • Please help me asap!!
    13·2 answers
  • The area of the regular pentagonal base of this prism is 43.06 square units. What is the volume of this prism?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!