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
Igoryamba
3 years ago
8

In a certain country telephone numbers have 9 digits. the first two digits are the area code and are the same within a given are

a. the last 7 digits are the local number and cannot begin with a zero. how many different telephone numbers are possible within a given area code in this country?
Mathematics
1 answer:
irga5000 [103]3 years ago
6 0
<span>Using the counting principle, the total number of possible telephone numbers is given by N = 1 * 1 * 9 * 10 * 10 * 10 * 10 * 10 * 10 = 9,000,000</span>
You might be interested in
Find the distance between points p (5, 1) and q (3,4)
DENIUS [597]

Answer:

D=3.60

Step-by-step explanation:

D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}

Where

(x_1,y_1) = (5,1)

(x_2,y_2) = (3,4)

Replacing these values in the distance formula

D =\sqrt{(5-3)^2+(1-4)^2}

D =\sqrt{(2)^2+(-3)^2}

D =\sqrt{4+9}

D =\sqrt{13}

D =\sqrt{13}

D= 3.60

4 0
3 years ago
Triangle HKJ is inscribed in the circle as shown. If the triangle is a right triangle, what can you conclude about HJ?
kifflom [539]

Answer:

HJ is diameter.

Step-by-step explanation:

Given Triangle HKJ is inscribed in the circle. we have to conclude about HJ if the triangle is a right triangle.

All the three sides are chord of the circle.

As given HKJ is right angled triangle i.e∠HKJ=90° and angle subtended by diameter in the semicircle is 90° implies HJ is diameter because if the HJ moves towards the angle then the given angle becomes acute and if moves away from the angle then the angle becomes obtuse which contradict the given information.

hence, the only possibility about the line HJ is that it is a diameter.


7 0
3 years ago
Write an expression that goes with this sentence. The sum of three-fifths of w and two -fifths of x, minus 8
Vaselesa [24]

(3/5)w + (2/5)x - 8 is the appropriate expression.  Be sure to use the parentheses as shown.


7 0
4 years ago
Read 2 more answers
150 is 40% of what number
AysviL [449]

Step-by-step explanation:

hope it helps youu.........

5 0
3 years ago
Work out 11.5% of 320
KiRa [710]
11.5/100 (320)
184/5 (decimal:36.8)

hope this helps!
7 0
4 years ago
Other questions:
  • On a snowy day, the amount of money Billy earns, M, varies directly with the number of
    9·1 answer
  • Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour . What is Nina’s rate miles
    10·1 answer
  • region R is revolved about the​ y-axis. The volume of the resulting solid could​ (in principle) be found by using the​ disk/wash
    13·1 answer
  • Find the circumference of the circle. Round to the nearest tenth.
    11·2 answers
  • Find the volume.<br> 12 m<br> 6 m<br> 8 m
    11·2 answers
  • Can someone please help me graph these 4?
    9·1 answer
  • The ratio of boys to girls is 5:4. there are 64 girls in choir. how many boys are in choir?
    10·1 answer
  • HELPPPPPPPPPP FASTTTTTTT
    13·1 answer
  • Oh lord pls help asap
    7·1 answer
  • What is the Compound interest on a 10,000 investment the earns 6% compound monthlyfor5 years
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!