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Vikki [24]
3 years ago
8

A random sample of 10 employees for the Department of Health and Human Services has the following salaries in thousands of dolla

rs. Assuming normality, use a TI-83, TI-83 plus, or TI-84 calculator to find the 98% confidence interval for the true population mean salary. Round your answers to two decimal places and use increasing order. Salary
72
71
66
71
69
71
72
69
70
71
Mathematics
1 answer:
julsineya [31]3 years ago
6 0

Answer:

(68.58,71.82)

Step-by-step explanation:

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Allushta [10]
Answer is 4x x 3y >e3£
5 0
3 years ago
Please answer ASAP!
7nadin3 [17]

Answer:

h = 4.5 inches

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 (b1+b2) h

We know A b1 and b2

20.25 = 1/2 (5+4)*h

20.25 = 9/2 h

Multiply each side by 2/9 to isolate h

2/9 * 20.25 = 2/9 *9/2 h

4.5 =h

6 0
3 years ago
How many solutions are there to the equation below 9x + 27 = 9( x + 2 ) + 9
Nataly [62]

Let's solve the equation:

9x+27 = 9(x+2)+9 ← Distribute 9 to the x and 2

9x+27 = 9x+18+9 ← Combine like terms

9x+27 = 9x + 27 ← Subtract 27 from both sides

9x = 9x


Infinitely many solutions would be correct because no matter what x is, it will always equal each other the both sides of the equation because it is 9 times x on both sides.


7 0
3 years ago
Read 2 more answers
Which ordered pair is a solution of the equation? −7x+3y=2
lana66690 [7]
Answer:

(-2/7, 2/3)

step-by-step explanation:
-7x + 3y = 2
x = 0
-7(0) + 3y = 2
3y = 2
/3 /3
y = 2/3
y = 0
-7x + 3(0) = 2
-7x = 2
/-7 /-7
x = -2/7
(-2/7, 2/3)
6 0
3 years ago
Read 2 more answers
(98 POINTS) (PLEASE HURRY!)
Montano1993 [528]

Answer:

1. no like terms

2. x^ 3 − x^ 2 − x + 1

3.x y + x + y + 1

4.x^ 3 + x^ 2 y + x y^ 2 + y^ 3

Lol

6 0
3 years ago
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