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
jok3333 [9.3K]
2 years ago
8

Debit cards and credit cards look the same. However, they work very differently. Which statement is true about debit cards? A) e

ach purchase is a loan that is repaid later B) interest is charged if balance is not paid each month C) consumers can purchase items now and pay for them later D) you must have enough money in your account to cover your purchases
Mathematics
1 answer:
Ostrovityanka [42]2 years ago
3 0
D sorry if not right
You might be interested in
Geometry question 6 please. I need help with this question
katrin2010 [14]
I would try drawing the line on a coordinate plane to help.
6 0
3 years ago
Read 2 more answers
A road perpendicular to a highway leads to a farmhouse located d miles away. An automobile traveling on this highway passes thro
pshichka [43]

Answer:

\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+900}}

Step-by-step explanation:

A road is perpendicular to a highway leading to a farmhouse d miles away.

An automobile passes through the point of intersection with a constant speed \frac{dx}{dt} = r mph

Let x be the distance of automobile from the point of intersection and distance between the automobile and farmhouse is 'h' miles.

Then by Pythagoras theorem,

h² = d² + x²

By taking derivative on both the sides of the equation,

(2h)\frac{dh}{dt}=(2x)\frac{dx}{dt}

(h)\frac{dh}{dt}=(x)\frac{dx}{dt}

(h)\frac{dh}{dt}=rx

\frac{dh}{dt}=\frac{rx}{h}

When automobile is 30 miles past the intersection,

For x = 30

\frac{dh}{dt}=\frac{30r}{h}

Since h=\sqrt{d^{2}+(30)^{2}}

Therefore,

\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+(30)^{2}}}

\frac{dh}{dt}=\frac{30r}{\sqrt{d^{2}+900}}

3 0
3 years ago
What is the domain of the graph ?
marysya [2.9K]
The domain of the graph is all real numbers because the value doesn’t have an end point.
3 0
3 years ago
A 14 foot ladder is leaning against a building. The ladder makes a 45 degree angle with the building. How far up the building do
3241004551 [841]
Sin 45 = X / 14
X = 14 * sin45
X = 7√2≈9.89949
Thus ladder will reach to ≈ 9.9 (rouded-up) foot height in the building
5 0
3 years ago
Simplify.<br> (8^3)^7 = 8^n<br><br> n=?
DiKsa [7]

Hello User,

Answer: n = 488

3 0
2 years ago
Other questions:
  • What percent is equivalent to 840 ? 8% 20% 25% 40%
    11·2 answers
  • In a paint factory, an old conveyer line has filled 40 barrels of paint, and is filling more at a rate of 10 barrels per minute.
    11·2 answers
  • What is a quadrilateral that has no lines of symmetry
    13·2 answers
  • Dons class rents a bus for $168. They want to take the bus to the theater. What is the total cost of the bus rental and theater
    5·1 answer
  • I need help as soon as possible
    7·1 answer
  • Which statements describe the function f(x)=2x+24/x^2+4x-96<br> Check all that apply.
    14·1 answer
  • 22 less than the quotient of an unknown number and 35 is -25
    14·1 answer
  • twins Denise and Deandre always flip a coin to describe who gets to ride in the front seat to school. during a 6-week period (30
    10·1 answer
  • How do I find the missing sides in this triangle?
    9·1 answer
  • Choose and appropriate data display for the situation. Select all that apply.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!