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Amiraneli [1.4K]
3 years ago
14

What does Z equal? Anyone know please help

Mathematics
2 answers:
Aleksandr [31]3 years ago
7 0

Answer:

A z-score equal to 0 represents an element equal to the mean. ... A z-score equal to -1 represents an element that is 1 standard deviation less than the mean; a z-score equal to -2, 2 standard deviations less than the mean; etc.

Mila [183]3 years ago
3 0

Answer:

z=60 degrees

Step-by-step explanation:

Both triangles are similar which means their angles are the same but their sides/ legs aren't.

65+55=120

180-120=60

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Helppppppppppppppppppppp
Nastasia [14]

Answer:

Step-by-step explanation:

1) 5 - [-5] = 5 + 5 = 10

2)8 - 13 = 8 + (-13) = -5

3) 12 +(-3) = 9

4) x + (-7) = 5

   x - 7 = 5

        x = 5 + 7

x = 12

We need to add 12 to (-7) to get 5

5) 7 - x = -5

    7 = -5 +x

  7 + 5 = x

    12 = x

We need to take away 12 to 7 to get (-5)

6) 7 - (-10) = 7 + 10 = 17

17° C

8 0
3 years ago
Find the equation of the line that contains the given points. P1(−8, 5), P2(−8, −5)
zavuch27 [327]
\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
&({{ -8}}\quad ,&{{ 5}})\quad 
%   (c,d)
&({{ -8}}\quad ,&{{ -5}})
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{-5-5}{-8-(-8)}
\\\\\\
\cfrac{-10}{-8+8}\implies \stackrel{und efined}{\cfrac{-10}{0}}

that simply means, is a vertical line, check the picture below.

8 0
4 years ago
Eight runners are entered in the 100-meter race. How many different first, second, and third place finishes could possibly occur
olchik [2.2K]

Answer:

336

Step-by-step explanation:

Given

Number = 8

Positions = 1st, 2nd, 3rd

Required

Determine number of first, second and third;

The first position can be any of the 8 runners

The second position can be any of the remaining 7

The third positioncan be any of the remaining 6

Possible\ Places = 8 * 7 * 6

Possible\ Places = 336

6 0
3 years ago
Determine the vertical asymptote. Simplify the function by factoring the denominator.
Brilliant_brown [7]
The function is equal to (x+2) / (x+2)(x-2), so when you simplify, it would be 1/(x-2). This means that there is a hole in the graph at x=-2, and a vertical asymptote at x=2. 
7 0
3 years ago
A truck going 50 miles per hour
larisa86 [58]

Answer:

133.33 mph

Step-by-step explanation:

The small trick is to notice the time. Is it 8:00 AM the same day. We don't know, but we will assume it is.

So the truck was on the road for 2 hours.

The car was on the road for 2 - 1/2 = 1 1/2 = 1.5 hours.

The distance travelled was 200 miles

Solution

d = r * t

200 = r * 1.5

200/1.5 = r

r = 133.33 miles / hour

The noise you hear is a siren trying to catch up to the car.

7 0
3 years ago
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