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neonofarm [45]
3 years ago
14

Hypnosis is a state of human consciousness involving a heightened sense of focus and concentration while blocking out sources of

distraction. Researchers believe 80% of all people can be hypnotized. A random sample of 50 people showed that 42 of them were hypnotized successfully. Find the p-value and z-score to determine to show that 80% or more can be hypnotized.
a. p = 1.84, z = 0.71
b. p = 1.71, z =1.84
c. p = 0.71, z = 0.84
d. p = 0.76, z = 0.71
Mathematics
1 answer:
Free_Kalibri [48]3 years ago
5 0
The answer is c that’s the answer
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Answer:

X= 5

Explanation (Steps):

<u>Step 1: Simplify both sides of the equation.</u>

−3.4(x−2)=9.8−4x

(−3.4)(x)+(−3.4)(−2)=9.8+−4x(Distribute)

−3.4x+6.8=9.8+−4x

−3.4x+6.8=−4x+9.8

<u>Step 2: Add 4x to both sides.</u>

−3.4x+6.8+4x=−4x+9.8+4x

0.6x+6.8=9.8

<u>Step 3: Subtract 6.8 from both sides.</u>

0.6x+6.8−6.8=9.8−6.8

0.6x=3

<u>Step 4: Divide both sides by 0.6.</u>

0.6x0.6=3/0.6

x=5

5 0
3 years ago
A right triangle has coordinates A(6, 0), B(0, 0), and C(0, 8). What is the perimeter of the triangle?
dimulka [17.4K]

Answer:

C

Step-by-step explanation:

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B(0, 0), C(0, 8) then BC = 8 - 0 = 8

To calculate AC use Pythagoras' theorem on the right triangle formed

AC² = AB² + BC² = 6² + 8² = 36 + 64 = 100

Take the square root of both sides, hence

AC = \sqrt{100} = 10

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5 0
3 years ago
Frank starts off with $ 120 to spend on his shirts and shoes. Frank buys 3 shirts for $15.50 each. Shoes cost $32.50 each per pa
evablogger [386]
Shirts:  3 x 15.50 = 46.50

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Just do 7 divided by 9

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3 years ago
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Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule.
Klio2033 [76]
The firs term
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A(1)=-6+(0)(6)
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The fourh term
A(n)=-6+(n-1)(6)
A(4)=-6+(4-1)(6)
A(4)=-6+(3)(6)
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The tenth term
A(10)=-6+(10-1)(6)
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A(10)=-6+54
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Answer: 
D.  -6,12,48
6 0
3 years ago
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