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
gizmo_the_mogwai [7]
3 years ago
11

Jeremy has an $8 gift card to use to buy comic books. Each comic book costs $5.25. The function f(x)=5.25x−8 represents the amou

nt of cash required to purchase x comic books after using his gift card. How much cash does Jeremy need to buy 3 comic books?
A
$7.75

B
$8.25

C
$10.50

D
$15.75
Mathematics
2 answers:
KATRIN_1 [288]3 years ago
8 0

Answer:

a

Step-by-step explanation:

since we need to find out the price of 3 comic books we are going to input the 3 into the function. you will do 5.25(3)-8 which will equal $7.75

EleoNora [17]3 years ago
6 0

Answer:

Step-by-step explanation:

a

You might be interested in
I need the answers to #1,#2 and #3
Ede4ka [16]
The answers are #1 45 #2 24 #3 10
6 0
3 years ago
How do the values in Pascal’s triangle connect to the coefficients?
damaskus [11]

Explanation:

Each row in Pascal's triangle is a listing of the values of nCk = n!/(k!(n-k)!) for some fixed n and k in the range 0 to n. nCk is <em>the number of combinations of n things taken k at a time</em>.

If you consider what happens when you multiply out the product (a +b)^n, you can see where the coefficients nCk come from. For example, consider the cube ...

  (a +b)^3 = (a +b)(a +b)(a +b)

The highest-degree "a" term will be a^3, the result of multiplying together the first terms of each of the binomials.

The term a^b will have a coefficient that reflects the sum of all the ways you can get a^b by multiplying different combinations of the terms. Here they are ...

  • (a +_)(a +_)(_ +b) = a·a·b = a^2b
  • (a +_)(_ +b)(a +_) = a·b·a = a^2b
  • (_ +b)(a +_)(a +_) = b·a·a = a^2b

Adding these three products together gives 3a^2b, the second term of the expansion.

For this cubic, the third term of the expansion is the sum of the ways you can get ab^2. It is essentially what is shown above, but with "a" and "b" swapped. Hence, there are 3 combinations, and the total is 3ab^2.

Of course, there is only one way to get b^3.

So the expansion of the cube (a+b)^3 is ...

  (a +b)^3 = a^3 + 3a^2b +3ab^2 +b^3 . . . . . with coefficients 1, 3, 3, 1 matching the 4th row of Pascal's triangle.

__

In short, the values in Pascal's triangle are the values of the number of combinations of n things taken k at a time. The coefficients of a binomial expansion are also the number of combinations of n things taken k at a time. Each term of the expansion of (a+b)^n is of the form (nCk)·a^(n-k)·b^k for k =0 to n.

6 0
3 years ago
What is 0.98 rounded to the nearest thousandth?
aksik [14]
0.98 is already rounded
it may also be asking for 0.980, which is equal but shows the thousandth place
6 0
3 years ago
PLZ HELP FASTTT (including brainliest
ddd [48]

Answer:

open circle at 7; arrow points left

Step-by-step explanation:

To Solve:

4x - 10 < 18

    + 10   +10

4x < 28

/4    /4

x < 7   *only flip sign when multiply/divide by negative

< means the arrow will point left and that it will be an open circle

4 0
3 years ago
Read 2 more answers
(2^2 + 8) x 7 solve the following problem​
tekilochka [14]

Answer:

84

Step-by-step explanation:

2^2=4

4 + 8=12

12 times 7= 84

7 0
3 years ago
Read 2 more answers
Other questions:
  • 2/3(6y+9)<br> Need help
    15·2 answers
  • Write an equation of a line that passes through the point (7,3) and is parallel to the line y=-2/3x+3
    14·2 answers
  • I need help community
    11·1 answer
  • Write the equation of the graphed circle.
    10·1 answer
  • A number divisible by 5 but not by 2 but the number should be even​
    6·1 answer
  • ASAP NOW AND YOULL GET 20 and ILL ANSWER ONE OF URS
    14·1 answer
  • What are the measures of angle a,b,c? show your work and explain
    15·1 answer
  • Could someone check this answer for me?
    9·2 answers
  • 3x+3 solve for x PLLSSSS HELP giving brainliest
    7·2 answers
  • \text{Emily runs 11 feet per second.}
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!