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avanturin [10]
3 years ago
11

PLZ HELP! Use technology or a z-score table to answer the question.

Mathematics
1 answer:
Rashid [163]3 years ago
7 0

Answer:

the answer would be A, or 5.3%

Step-by-step explanation:

you start by finding the z-score of 200, so 200-144.05 = 55.95/34.52 = 1.62 (rounded to the nearest ) Then you use a z-score table to find the probability that a customer will spend less than 200 dollars and subtract the decimal probability from one. then you convert the decimal probability to a percent and get 5.3%.

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PLS HELP!<br> What is the frequency of the sinusoidal graph?
docker41 [41]

the frequency of the sinusoidal graph is 2 in 2 π interval

Step-by-step explanation:

The frequency of the graphs refers to the number of the cycles, the graph completes in a given fixed interval.  

We already know the formula that  

         P= (1/ F)

Thus, F= (1/ P)

Where F= frequency and P= Period

Period is the horizontal length (x- axis component) of one complete cycle.

Thus, Observing the above graph

We find that the graph completes 1 cycle in π interval and 2 cycles in 2π interval

Thus, the frequency of the sinusoidal graph is 2 in 2 π interval

3 0
4 years ago
The spray from a sprinkler reaches 21 feet from the sprinkler and creates a circle as it spins. What is the circumference of the
lina2011 [118]

C=πd

r=21

d=42

C=132 ft, and D is your final answer. Hope it help!

4 0
3 years ago
One of my last ones i need
grandymaker [24]

angle EPF = angle DPG

=> 4x + 48deg = 7x

=> 3x = 48 deg

=> x = 16

=> angle EPF = 4(16) +48 = 112deg

7 0
3 years ago
Find the slope and y-intercept for 2x+8y=-32 and then graph the line
sammy [17]
2x+8y=-32
8y=-2x-32
y=-1/4x-4

The slope is -1/4, the y-intercept is -4, and I can't graph it for you on here. Type my equation into a graphing calculator and it'll do it for you. (Desmos is a good online graphing calc, and it's free)
8 0
4 years ago
11) k(n) = n² + 3n; Find k(3n)
Natali [406]

Answer:

k(3n) = 9n² + 9n

General Formulas and Concepts:

Order of Operations: BPEMDAS

  • Substitution and evaluation

Step-by-step explanation:

<u>Step 1: Define</u>

k(n) = n² + 3n

k(3n) is n = 3n

<u>Step 2: Solve</u>

  1. Substitute:                        k(3n) = (3n)² + 3(3n)
  2. Exponents:                       k(3n) = 9n² + 3(3n)
  3. Multiply:                            k(3n) = 9n² + 9n
3 0
3 years ago
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