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Solnce55 [7]
3 years ago
12

Find the Sample size for 99% confidence level with a margin of error of 4% and p unknown.

Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0

Answer:

za/2: Divide the confidence level by two, and look that area up in the z-table: .95 / 2 = 0.475. ...

E (margin of error): Divide the given width by 2. 6% / 2. ...

: use the given percentage. 41% = 0.41. ...

: subtract. from 1.

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Can someone please help me with this
timofeeve [1]

Answer:

x= 6

Step-by-step explanation:

since both sides equal the same amount..

5x-7=3x+5

you plug it in through a calculator or work it out. if you dont know how to work it out, try the app <u>photomath</u><u>,</u><u> </u>it shows you solving steps :))

8 0
2 years ago
What are the coordinates of the endpoints of the midsegment for DEF that is parallel to DE
Nutka1998 [239]

Answer:

\left(\dfrac{x_D+x_F}{2},\dfrac{y_D+y_F}{2}\right),  \left(\dfrac{x_E+x_F}{2},\dfrac{y_E+y_F}{2}\right).

Step-by-step explanation:

Let points D, E and F have coordinates (x_D,y_D),\ (x_E,y_E) and (x_F,y_F).

1. Midpoint M of segment DF has coordinates

\left(\dfrac{x_D+x_F}{2},\dfrac{y_D+y_F}{2}\right).

2. Midpoint N of segment EF has coordinates

\left(\dfrac{x_E+x_F}{2},\dfrac{y_E+y_F}{2}\right).

3. By the triangle midline theorem, midline MN is parallel to the side DE of the triangle DEF, then points M and N are endpoints of the midsegment for DEF that is parallel to DE.

6 0
3 years ago
During the first part of a hike, Andre drank 1.5 liters of the water he brought. If this is 50% of the water he brought, how muc
ira [324]

Answer:

50/100 x X = 1.5

x 100       x100

50x = 150

÷50   ÷50

X = 3

X = 3 liters I am pretty sure

5 0
3 years ago
Order 0.6, 0.67, 0.5, 0.58, 0.583 from greatest to least. 0.6, 0.5, and 0.583 repeat themselves. The 3 repeats on 0.583.
irga5000 [103]
.67, .6, .6, .583, .58, .58, .58, .5, .5
4 0
3 years ago
The product of 3x and (3x+1) is a t least 35
Leokris [45]
Product means the sum of two things i.e. the product of 1 and 2 is 3 <span>(1 + 2 = 3)

So the product of 3x and (3x+1) can be written as:
35 < 3x + 3x + 1
^ Greater than 35 i.e. at least 35
35 < 6x + 1
34 < 6x
34/6 < x
17/3 < x
5.67 (2dp) < x

</span>
6 0
3 years ago
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