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DIA [1.3K]
3 years ago
13

THE AP CALCULUS EXAM SCORES WERE RELEASED IN JULY. THE SECONDARY MATH SPECIALIST PREPARED THE BOX PLOT SHOWN TO PRESENT THE SCOR

ES TO THE SUPERINTENDENT. WHAT'S THE RANGE OF SCORES THAT REPRESENTS THE MIDDLE 50 PERCENT OF THE STUDENTS WHO TOOK THE TEST?
    
  A. 65%–89%
  B. 65%–94%
  C. 81%–89%
  D. 65%–81%

Mathematics
1 answer:
Ganezh [65]3 years ago
8 0

Answer : option A

To find the range of scores that represents the middle 50 % of the student who took the test , we find inter quartile

Inter quartile range is the middle 50% of the given range of scores.

The difference between the upper quartile and lower quartile is the inter quartile that is middle 50%

From the diagram , we can see that

Upper quartile = 89

lower quartile = 65

So range is 65%  to 89%

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Suppose that an individual has a body fat percentage of 18.2% and weighs 162 pounds. how many pounds of his weight is made up of
vivado [14]

Answer:

29.5 pounds

Step-by-step explanation:

The amount of his weight made up of fat is his fat percentage times his body weight.

This is 18.2% * 162, which is \frac{7371}{250} or 29\frac{121}{250} which is 29.484

Rounded to the nearest tenth (1 decimal place), it is 29.5.

4 0
3 years ago
To kick off the summer, Colton is planning a "School's Out!" party for all his friends. He and his mom pick up a giant sub and a
marshall27 [118]

Answer:

(a)6 feet

(b)24 sections

Step-by-step explanation:

(a)We are required to find the length of the Giant Sub.

If each section is 1/3 of a foot long and there are 18 equal parts.

Length of the Giant Sub =

Length per Section X Number of Sections

= 1/3 X 18 = 6 feet

(b)If each section is 1/4 of a feet long

Length of the Giant Sub =

Length per Section X Number of Sections

6= 1/4 X Number of Sections

Number of Sections =6 X 4 =24 sections

4 0
3 years ago
I need help plzzzzzzo
antoniya [11.8K]

Answer:

→ {x}^{3}  + 2 {x}^{2}  - 9x - 18 \\  =  {x}^{2} (x + 2) - 9(x + 2) \\ =  (x + 2)( {x}^{2}  - 9) \\  =  \boxed{(x + 2)(x + 3)(x - 3)}

  • <u>A. (x + 2)</u> is a factor of the polynomial.
7 0
3 years ago
Please help me with this :/ I will give Brainiest! I just really need help. Please
ollegr [7]

Did you ever get the answer to this?

8 0
3 years ago
the slope of a line is 3/2 and the line contains the points (5,9) and (3, a). what is the value of a?
vivado [14]
Y = mx + b
slope(m) = 3/2
(5,9)...x = 5 and y = 9
now we sub and find b, the y int
9 = 3/2(5) + b
9 = 15/2 + b
9 - 15/2 = b
18/2 - 15/2 = b
3/2 = b
so ur equation is : y = 3/2x + 3/2.........(3,a)....so x = 3

y = 3/2(3) + 3/2
y = 9/2 + 3/2
y = 12/2
y = 6

so ur missing value is 6...a (or y)  = 6
7 0
3 years ago
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