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nika2105 [10]
3 years ago
6

The average student loan debt for college graduates is $25,800. Suppose that that distribution is normal and that the standard d

eviation is $14,150. Let X = the student loan debt of a randomly selected college graduate. Round all probabilities to 4 decimal places and all dollar answers to the nearest dollar The middle 20% of college graduates' loan debt lies between what two numbers?
Mathematics
1 answer:
qaws [65]3 years ago
3 0
The answer would have to be 10
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Find the value of x.
timofeeve [1]

Answer:

x = 5/3

Step-by-step explanation:

4x= x + 5

3x=5

x = 5/3

5 0
2 years ago
A triangle has side lengths of (7x-4)(7x−4) centimeters, (x+3)(x+3) centimeters, and (3y+2)(3y+2) centimeters. Which expression
Papessa [141]

Answer:

<u>This assumes that the question was meant to read:</u>

"A triangle has side lengths of (7x−4) centimeters, (x+3) centimeters, and (<u>3x+2</u>) centimeters."  <u>And not </u>"A triangle has side lengths of (7x-4)(7x−4) centimeters, (x+3)(x+3) centimeters, and (3y+2)(3y+2) centimeters."

If the revision is correct, the perimeter is 11x + 1 cm

=============================================

<u>If the question was correctly written, then answer is:</u>

50x^2 - 50x + 9y^2  + 12 y  + 29

===============

Step-by-step explanation:

  (7x-4) cm

+ (x+3)  cm

<u>+ (3x+2) cm</u>

11x + 1 cm

If the question was correctly written as is, then:

(7x-4)(7x−4) = 49x^2 - 56x + 16

+(x+3)(x+3)    =     + x^2   + 6x   + 9

+(3y+2)(3y+2) = <u> +9y^2  + 12 y  + 4</u>

                         50x^2 - 50x + 9y^2  + 12 y  + 29 cm

                       

8 0
2 years ago
Question 3
Elan Coil [88]

Answer:

Domain:  -3\leq x\leq 1

Range:  -4\leq y\leq 0

Step-by-step explanation:

If you find the coordinate of the graph you can get the domain and range

(-3,0), (-2,-4), (-1,-2), (0,0), (1, -4)

Now that we have that find the domain and range

Domain -  x coordinate

Range - y coordinate

Domain: (-3, -2, -1, 0, 1)

Range: (-4, -2, 0)

Since the domain ranges from -3 to 1 you can use the inequality -3\leq x\leq 1 to represent the domain and -4\leq y\leq 0 for the range

7 0
3 years ago
Of the donuts we have left to sell, the
Helga [31]

Answer:

37.5%

Step-by-step explanation:

Ratio = 3 : 5

Total part = 3 +5 = 8

Chocolate donuts = 3/8

Percentage = \dfrac{3}{8}*100

= 37.5 %

5 0
2 years ago
Read 2 more answers
Melia put the $30 her Grandmother gave her for her tenth birthday into her piggy bank. Each week after
Vladimir [108]
This is a sequence because the points form a straight line. The expression is: t(n) = 30 + 2x, x is number of weeks. On her 18th birthday, that is 8 years after her 10th. that means 416 weeks have passed since her 10th birthday. Plug 416 into the equation to get: t(416) = 30 + 2(416) = $862. She will have $862 to Spend.
3 0
3 years ago
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