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Natasha2012 [34]
4 years ago
10

What is the z-score of the value 65 in a population if the population has a mean s = 62 and a standard deviation o = 2.4? A. 1.2

5 B. 0.9169 C. -1.25 D. 1.009​
Mathematics
1 answer:
jarptica [38.1K]4 years ago
6 0

Answer:

Option A

Step-by-step explanation:

z-score = (value - mean)/std = (65-62)/2.4 = 1.25

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Ames wants to informally prove the converse of the Pythagorean Theorem by producing some evidence that supports it.
Mazyrski [523]

Answer:

The second and fourth one is right

Step-by-step explanation:

A²+ B² = C²

15² + 20² = 25²

225 + 400 = 625

625 = 625

16² + 30² = 34²

256 + 900 = 1156

1156 = 1156

They both check out

3 0
4 years ago
A sports car accelerates at a constant rate from rest to a speed of 90 km/hr in 8 s. What is its acceleration?
Butoxors [25]
<span>none of the above 

ignore,
answer too short</span>
7 0
3 years ago
To celebrate getting a new job, Marco went out for a dinner that cost $100. If the local sales tax is 6% and Marco left a 15% ti
lorasvet [3.4K]

9514 1404 393

Answer:

  $121.00

Step-by-step explanation:

Together, the tax and tip were 6% and 15% of $100, or 21% of $100. That means the total cost of Marco's mean was ...

  (1 +21%) × $100 = 1.21×$100 = $121.00

5 0
3 years ago
-8x &gt; 24 I have to solve the inequality.
bazaltina [42]

Solution, -8x>24\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x

Steps:

-8x>24

Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right),\\\left(-8x\right)\left(-1\right)

\mathrm{Simplify},\\8x

\mathrm{Divide\:both\:sides\:by\:}8,\\\frac{8x}{8}

\mathrm{Simplify},\\x

The\:Correct\:Answer\:is\:x

Hope\:This\:Helps!!!

-Austint1414

7 0
4 years ago
30 PTS!!!
Sphinxa [80]

Answer:

children = 177, adults =215

Step-by-step explanation:

im too lazy to write but solve this with a systeme

x(children),y(adults)

x+y=392

x=392-y

2.5y+1.25x=758.75

2.5y+1.25(392-y)=758.75

2.5y+490-1.25y=758.75

490+1.25y=758.75

1.25y=758.75-490

1.25y=268.75

y=268.75/1.25

y=215

x=392-215=177(number of kids)

6 0
2 years ago
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