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
adell [148]
3 years ago
7

Can someone explain how to do part b?​

Mathematics
2 answers:
adoni [48]3 years ago
8 0

Answer:

3

Step-by-step explanation:

4(a) The first 3 terms are:

₅C₀ (3)⁵ (bx)⁰ = 1 × 3⁵ × 1 = 243

₅C₁ (3)⁴ (bx)¹ = 5 × 3⁴ × bx = 405b x

₅C₂ (3)³ (bx)² = 10 × 3³ × (bx)² = 270b² x²

4(b) The coefficient of x² (the third term) is twice the coefficient of x (the second term).

270b² = 2 (405 b)

270b² = 810b

270b = 810

b = 3

murzikaleks [220]3 years ago
8 0

Answer:

3

Step-by-step explanation:

Term in x²: 270b²x²

Coefficient: 270b²

Term in x: 405bx

Coefficient: 405b

270b² = 2(405b)

270b² - 810b = 0

270b(b - 3) = 0

b = 0, 3

Since b is non-zero,

b = 3

You might be interested in
What adds to be the bottom number but also multiplies to be the top? 36,12
rusak2 [61]
4 because 12 can be divide by 4 and 36 is also a multiple of 4.

12/4=3
4x9=36

Hope it helped!
-BFF2480
4 0
4 years ago
Can someone help me with this?<br> No links please
Sphinxa [80]

Answer:

3) (4x-9)(4x+9)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is 22.056 in expanded form
exis [7]
20.000+2.000+0.50+.006
8 0
4 years ago
5(2x-3)-3(3+4)
Korolek [52]

Answer:

10x - 36

Step-by-step explanation:

5(2x - 3) - 3(3 + 4) \\ 10x - 15 - 3(3 + 4) \\ 10x - 15 - (3 \times 7) \\ 10x - 15 - 21 \\ 10x - (15 + 21) \\

\boxed{Answer:{\boxed{\green{= 10x - 36}}}}

8 0
3 years ago
Mr.edwards is making sandwiches.he has 4 pounds of cheese.he put 1/8 pound of cheese in each sandwich. what is the total number
dem82 [27]
Answer: 32 sandwiches


explanation: well, if one sandwich uses one eighth of a pound of cheese, that means that eight eighths of a pound (i.e one whole pound) would make eight sandwiches. Since we know that there are four pounds of cheese altogether, we can use this ratio (8 sandwiches per every 1 pound of cheese) to calculate that he made 32 sandwiches (8 times 4).
5 0
4 years ago
Other questions:
  • The number of miles a car can be driven depends on the number of gallons of gas its tank. The function m = 25g models a situatio
    13·1 answer
  • Please help! 50 points
    13·2 answers
  • 1)<br> Find the 29th term of the arithmetic sequence in which a=13 and d = -2.5
    7·1 answer
  • What is the result of adding these two equation?<br> 5x-9y=1<br> -7x+2y=-5
    7·1 answer
  • The average speed to go by car from home to college is 30 miles per hour. The average speed to go back home from college is 20 m
    7·1 answer
  • Franco is solving a system of linear equations algebraically. He find that there
    12·1 answer
  • A. Objeto que cae. La fórmula
    14·1 answer
  • What is the sign of 9(-0.5)
    9·1 answer
  • If the difference when −15 is subtracted from a number is twice the difference when 24 is subtracted from the same number, what
    5·1 answer
  • Can someone pls help me !
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!