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
dimulka [17.4K]
2 years ago
13

Eorge sells baseball cards online. He estimates he can make $4.75 per card. If George has 83 cards, using front-end estimation,

which choice would be closest to the amount George would make if he sells all his cards?
A. $320
B. $400
C. $470
D. $500
Mathematics
1 answer:
qwelly [4]2 years ago
5 0

Answer:

b

Step-by-step explanation:

4.75 rounds to 5 because the 7, 83 rounds to 80 because of the 3. 80*5=400

You might be interested in
If tim spends 1/3 each weekday sleeping and about 7/24 each weekday in school what fraction of a weekday does Tim spend either s
Ganezh [65]
Tim spends 1/3 each weekday sleeping and 7/24 in school. We can write 1/3 as 8/24 so we have a common denominator. Now we can see that Tim sleeps for 1/24 time of a weekday more then he spends in school.

I hope that's what you meant.
3 0
3 years ago
Help me!!11111111111111
zheka24 [161]
How to solve:

( x , y )

Plug the values in to the equation and solve

-3x+5y=2x+3y

(2,4) plugged in would be

-3(2)+5(4)=2(2)+3(4)

All you have to do is solve this and if the two sides are not equal(like 4=20), then it is not a solution. Just plug in (3,3) next.

Hope this helped!!!
3 0
3 years ago
Cheryl thinks that the
liubo4ka [24]

Answer:

yes she is right

Step-by-step explanation:3x + 3 is the same as 3 + 3x.  

the zero adds nothing to the 3x term. So this means that 3x +3 and 3 + 3 are the same.

i hope this helps you.

3 0
3 years ago
Show all work:
DerKrebs [107]

Answer:

m=-3

Step-by-step explanation:

m - 7 = -10

Ok so,

in order to get m by itself you just need to do the opposite of -7 which is +7 so you have to add 7 to both sides. On the left, both of the 7's cancel out and on the right -10 + 7 = -3. So, now it should look like this.

m=-3

To check you just need to plug in -3 into the question

Hope this helps! Have a good day

4 0
3 years ago
Which of the following is an improper integral?
guapka [62]

Answer:

A)  \displaystyle \int\limits^3_0 {\frac{x + 1}{3x - 2}} \, dx

General Formulas and Concepts:

<u>Calculus</u>

Discontinuities

  • Removable (Hole)
  • Jump
  • Infinite (Asymptote)

Integration

  • Integrals
  • Definite Integrals
  • Integration Constant C
  • Improper Integrals

Step-by-step explanation:

Let's define our answer choices:

A)  \displaystyle \int\limits^3_0 {\frac{x + 1}{3x - 2}} \, dx

B)  \displaystyle \int\limits^3_1 {\frac{x + 1}{3x - 2}} \, dx

C)  \displaystyle \int\limits^0_{-1} {\frac{x + 1}{3x - 2}} \, dx

D) None of these

We can see that we would have a infinite discontinuity if x = 2/3, as it would make the denominator 0 and we cannot divide by 0. Therefore, any interval that includes the value 2/3 would have to be rewritten and evaluated as an improper integral.

Of all the answer choices, we can see that A's bounds of integration (interval) includes x = 2/3.

∴ our answer is A.

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit:  Integration

Book: College Calculus 10e

6 0
3 years ago
Other questions:
  • What is the value of x2 + 4 for x = 5?
    11·2 answers
  • 2. Which relations represent a function? Check all that apply.
    15·1 answer
  • What is the to this question 5x+7x=72
    5·1 answer
  • Please help me.<br> I need your help
    14·1 answer
  • Given area of a rectangle: 7x^2+57x+8 <br> Find Perimeter:
    14·1 answer
  • Help me please help me thanks again help me thanks
    11·1 answer
  • Geometry need answer to this due soon ​
    11·1 answer
  • X+y+(y-2)=60,1/2(x)(y-2)=120 what is x and y​
    11·2 answers
  • The cost, c, of paper towels, based on the number of rolls, r, is given by this equation.
    11·2 answers
  • - Ben sells appliances in a large department store. He makes a weekly salary plus 3% on sales. One
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!