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sergeinik [125]
4 years ago
11

The start time is 7:30 p.m. the end time is9:29 p.m. what is the elapsed time

Mathematics
1 answer:
Oksanka [162]4 years ago
3 0
Add 2 hours to make it 9:30, which is too long. Then subtract one minute to make it 9:29. so the answer is 1 minute less than 2 hours, or 1 hour and 59 minutes
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Use the inequality x2−8x+6≤0 and graphing calculator, or another piece of technology, to answer Part A and Part B. Part A: What
Kryger [21]

Answer:

Part A) The zero's of the function are x=0.84, x=7.16

Part B) The solution set is the interval  [0.84,7.16]

Step-by-step explanation:

we have

x^2-8x+6\le0

Using a graphing calculator

Part A) What are the zeros of the inequality to the nearest hundredth?

The zero's of the function are the values of x when the values of the function are equal to zero

see the attached figure

The zero's of the function are

x=0.84, x=7.16

Part B) What is the solution set for the inequality?

The solution set is the interval  [0.84,7.16]

All real numbers greater than or equal to 0.84 and less than or equal to 7.16

0.84\leq x \leq 7.16

5 0
3 years ago
Vhich of the following is a true statement about skew lines?
krok68 [10]

Answer:

A. Skew lines cannot lie in the same plane.

Step-by-step explanation:

(*Which)

Skew Line Definition (from Wikipedia): <em>"In three-dimensional geometry, skew lines are two lines that do not intersect and are not parallel." </em>-Wikipedia

<em>"Two lines that both lie in the same plane must either cross each other or be parallel, so skew lines can exist only in three or more dimensions."</em> -Wikipedia

Skew lines cannot lie in the same plane so A is correct and C is incorrect.

B and D are incorrect because our friend Wikipedia just said it was incorrect.

5 0
4 years ago
The mean, median and mode of the five numbers are same. if four numbers are 7,7,5 and 7, what must be the fifth number?
Morgarella [4.7K]

Answer:

The fifth number is <u>9</u>

Step-by-step explanation:

7 is the mode because it appears the most.

7 has to be the median, so the fifth number could be anything.

7 has to be the mean, so you would do:

7 x 5 = 35

35 - 7 - 7 - 7 - 5 = <u>9</u>

7 0
3 years ago
Classify the function as linear or quadratic and identify the quadratic, linear, and constant terms.
Jet001 [13]

Answer:

D

Step-by-step explanation:

The function f(x) = 6x2 +x -12 is a quadratic since the highest degree polynomial term is 2. So that eliminates B and C. Option A is incorrect because the quadratic term is 6 not double the constant. There for the correct choice is D because the function is a quadratic and the quadratic term is 6x2, the linear term is x and the constant term is -12.

4 0
3 years ago
Determine what number is 30% of 400.
Darya [45]

Answer:

120

Step-by-step explanation:

Is means equals and of means multiply

W = 30% * 400

Change to decimal

W = .30*400

W = 120

6 0
3 years ago
Read 2 more answers
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