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
Gnom [1K]
3 years ago
11

1. If a, b, c, d, and e are whole numbers and a(b(c

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0

Answer:

a CANNOT be even ⇒ answer A

Step-by-step explanation:

* Lets revise the rules of even and odd numbers

- Even numbers any number its unit digit is (0 , 2 , 4 , 6 , 8)

- Odd numbers any number its unit digit is (1 , 3 , 5 , 7 , 9)

# even + even = even ⇒ 2 + 4 = 6  

# odd + odd = even ⇒ 1 + 3 = 4  

# odd + even = odd ⇒ 1 + 2 = 3  

# even × even = even ⇒ 2 × 4 = 8

# odd × odd = odd  

⇒ 3 × 5 = 15

# odd × even = even  ⇒ 5 × 6 = 30

∵ a[b(c + d) + e] = odd

∵ odd × odd = odd  

∴ a must be odd and [b(c + d) + e] must be odd

∵ odd + even = odd

∵ odd × even = even

# Case 1

∴ b(c + d) must be odd  if e even

∵ b(c + d) is odd

∴ b must be odd and (c + d) must be odd

∵ c + d must be odd

∵ odd + even = odd

∴ c or d can be even

- We now now that e , c and d can be even

# case 2

∴ b(c + d) must be even  if e odd

∵ b(c + d) is even

∵ even × even = even

∴ b and (c + d) both can be even

∵ c + d can be even

∴ c or d can be even or odd

- We now now that e , c , d and b can be even

∴ Only a can not be even

* a CANNOT be even

You might be interested in
I WILL GIVE BRAINLIEST ANSWER!!!
Blababa [14]

Answer:

10 is unbiased

11 is biased

Step-by-step explanation:

10 is unbiased

11 is biased

Have an amazing day!

PLEASE RATE!!

7 0
2 years ago
Read 2 more answers
A number is less than 20 units away from 7 on the number line. What numbers are within these parameters? Choose the inequality t
Alex787 [66]

Answer:

For the pull out menu it was B

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A+B=44 A+B=44 A:B A:B is equivalent to 4:7. A= B=
ipn [44]
I think is going to be
A=1
B=43 
I WISH IF YOU LOOKING FOR
6 0
4 years ago
Choose Yes Or no to indicate wether the percent and the fraction represent the same amount.
romanna [79]

Answer:

1, yes

2, no

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve for h in 9=h-5
Misha Larkins [42]

Answer:

h = 14

Step-by-step explanation:

9=h-5

9 + 5 = h -5 +5

14 = h

3 0
3 years ago
Other questions:
  • A watch gains 18 seconds in a day. how many minutes will the watch gain in 3 weeks?
    13·2 answers
  • Solve the linear equation.
    15·2 answers
  • Can someoneeee helpppp
    14·1 answer
  • a number n is multiplied by 3. The result is the same as when n is divided by 3. What is the value of n?
    7·2 answers
  • 3. start fraction x over 5 end fraction + 6 = 10 (1 point) 44 30 20 –20 4. 3(4 – 2x) = –2x (1 point) –1 1 2 3
    14·1 answer
  • Find all the zeros of the polynomial function. f(x)=x^4+62^2+128x+65 I want to find the zeros of the polynomial function
    8·1 answer
  • In your own words, how would you define slope?
    14·2 answers
  • Jayne is making a patchwork quilt. She is following a pattern for a triangular section but only knows the measurements shown. Wh
    14·1 answer
  • In the neighborhood of Silver Hills, the Hot Press Newspaper reports that residents (homes) per street purchase their newspaper.
    14·1 answer
  • Write each recurring decimal as a fraction in simplest form.<br> 0.286
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!