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
Dvinal [7]
3 years ago
11

Sean missed 8 questions when he took his quiz for the first time. when he took it the second time he only missed 3 questions. By

what percent did the number of questions he missed decrease?
Mathematics
1 answer:
Ivanshal [37]3 years ago
8 0

Answer:

37.5

Step-by-step explanation:

You might be interested in
The real part of the complex number –5 + 3i is
photoshop1234 [79]

Answer:

-5

Step-by-step explanation:

The real part of -5 + 3i is -5, and the imaginary part is 3.

7 0
2 years ago
72
Zigmanuir [339]

Answer:

Ai. Arithmetic sequence

Aii. Tn = 5 + 7n

Bi. Geometric

Bii. Tn = 8 × 2ⁿ¯¹

Step-by-step explanation:

To successfully answer the questions given above, note the following:

1. If the sequence is Arithmetic, then:

2nd – 1st = 3rd – 2nd = common difference (d)

2. If the sequence is geometric, then,

2nd / 1st = 3rd / 2nd = common ratio (r)

3. A sequence can not be arithmetic geometric at the same time.

4. The nth term of arithmetic sequence is:

Tn = a + (n – 1)d

5. The nth term of geometric sequence is:

Tn = arⁿ¯¹

A. Sequence => 12, 19, 26

i. Determination of the type of sequence.

We'll begin by calculating the common difference

1st term = 12

2nd term = 19

3rd term = 26

Common difference (d) = 2nd – 1st

d = 19 – 12 = 7

OR

d = 3rd – 2nd

d = 26 – 19 = 7

Since a common difference exist in the sequence, the sequence is arithmetic sequence.

ii. Determination of the nth term.

Common difference (d) = 7

1st term (a) = 12

nth term (Tn) =?

Tn = a + (n – 1)d

Tn = 12 + (n – 1)7

Tn = 12 + 7n – 7

Tn = 5 + 7n

B. Sequence => 8, 16, 32

Bi. Determination of the type of sequence.

Let us begin by calculating the common ratio.

1st term = 8

2nd term = 16

3rd term = 32

Common ratio (r) = 2nd / 1st

r = 16 / 8

r = 2

OR

r = 3rd / 2nd

r = 32 / 16

r = 2

Since a common ratio exist in the sequence, the sequence is geometric.

Bii. Determination of the nth term.

Common ratio(r) = 2

1st term (a) = 8

nth term =?

Tn = arⁿ¯¹

Tn = 8 × 2ⁿ¯¹

8 0
2 years ago
8^(x+4)=2^x..........
Ludmilka [50]

Answer:

Step-by-step explanation:

x = 0

6 0
3 years ago
The altitude to the hypotenuse of a right triangle divides the hypotenuse into segments of lengths 64 and 4. What is the length
Brilliant_brown [7]
Here, Ratio of corresponding length would be equal.
Let, Altitude = x
Then, 64 / x = x / 4
x² = 256
x = √256
x = 16

In short, Your Answer would be 16 units

Hope this helps!
8 0
3 years ago
A field is in the shape of a rectangle 5/6 mile long and 3/4 mile wide. What is the area of the field? *
Lynna [10]

Area = length x width

Area = 5/6 x 3/4

= (5x3) / (6x4)

= 15/24

= 5/8 square miles

7 0
3 years ago
Other questions:
  • Solve for h in this equation
    12·2 answers
  • Find the solution of the differential equation 3e^(3x)dy/dx=â9x/y^2
    11·1 answer
  • Solve for x<br><br> 2/3x -2= 16
    7·2 answers
  • What is the greatest common factor for each group?
    15·2 answers
  • What is the solution of 5 x + 1] + 6 = 21?
    7·2 answers
  • Find the slope.....<br>​
    9·1 answer
  • I need a answer to 77.5% of 13.270​
    10·1 answer
  • You spend $40 on 5 pounds of concrete. How much would it cost for 7 pounds of concrete
    7·2 answers
  • I need all the points marked
    6·1 answer
  • Calculate the cost (omit commission) of buying the 500 shares of Delta Air at $50.61.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!