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ICE Princess25 [194]
2 years ago
10

Help with 38 and 39 please!! 15 pts!!!

Mathematics
2 answers:
Temka [501]2 years ago
6 0

Answer:

38. -2.2

39. -1

Step-by-step explanation:

38.

First let's count how far C is from F.

5 - (-4)=5 + 4 = 9

There are 9 spaces between C and F.

Let's find 9/5, which is 1.8

Because we're finding the distance from C to F, we add 1.8 to the value C.

-4 + 1.8 = -2.2

The point X in CF that is 1/5 of the distance from C to F is -2.2

Note: It's your judgement on whether or not your professor would want this in decimal form or rounded to -2. I'd keep it as -2.2 if you're not sure, because that is the correct answer.

39.

Now let's do the same thing with BD.

How far is B from D? 1 - (-5) = 1 + 5 = 6

What's (6*2)/3? 12/3 = 4

What's B + 4? -5 + 4 = -1

The point X on BD that is 2/3 of the distance from B to D.  is -1

fgiga [73]2 years ago
3 0

Answer: X=-2 1/5, X=-1

Step-by-step explanation:

The distance from CF is 9 units, 1/5 that = 1 4/5, add that to -4 is -2 1/5.

The distance from BD is 6 units, 2/3 that =4, add that to -5 is -1.

Hope this helps!

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the data represents the heights of fourteen basketball players, in inches. 69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 8
Daniel [21]
If you would like to know the interquartile range of the new set and the interquartile range of the original set, you can do this using the following steps:

<span>The interquartile range is the difference between the third and the first quartiles.

The original set: </span>69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82
Lower quartile: 72
Upper quartile: 76.25
Interquartile range: upper quartile - lower quartile = 76.25 - 72 = <span>4.25
</span>
The new set: <span>70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77
</span>Lower quartile: 72.5
Upper quartile: 76
Interquartile range: upper quartile - lower quartile = 76 - 72.5 = 3.5

The correct result would be: T<span>he interquartile range of the new set would be 3.5. The interquartile range of the original set would be more than the new set.</span>
6 0
3 years ago
Read 2 more answers
Two parallel lines are cut by a transversal, as shown below. Solve for b. Then explain your reasoning.
Svetlanka [38]

Answer:

b = 14

Step-by-step explanation:

Since both angles are diagonal each other, they are equal to each other.

5b = b + 56

-b      -b           (subtract b from both sides)

<u>4b</u> = <u>56</u>

4       4            (divide both sides by 4 to solve for b)

 b = 14

3 0
2 years ago
(12x - 30) = (2x - 5)​
zzz [600]

Answer:

x = 5/2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

12x - 30 = 2x - 5

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 2x on both sides:                    10x - 30 = -5
  2. Add 30 to both sides:                            10x = 25
  3. Divide 10 on both sides:                        x = 5/2
8 0
2 years ago
Please i really need help on this.
Studentka2010 [4]

Answer:

it is C

Step-by-step explanation: please brainliest

6 0
2 years ago
A model car is 5 inches long. The actual length of the car is 15 feet . What is the scale factor of the model car?
Elodia [21]

Answer:

1 : 36

Step-by-step explanation:

To obtain the scale factor, the dimensions must be in the same units.

Using the conversion

1 foot = 12 inches, then

15 feet = 15 × 12 = 180 inches, thus

scale factor = 5 : 180 ← divide both parts by 5

scale factor = 1 : 36

7 0
3 years ago
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