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jenyasd209 [6]
3 years ago
5

Find side length x.answer choices 30251540​

Mathematics
1 answer:
Anarel [89]3 years ago
3 0
The answer to this is 30
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What is the margin of error if the sample size is 100, sample mean is 68.0, and standard deviation is 4.0
Mumz [18]

Answer:

Step-by-step explanation:

What is the margin of error if the sample size is 100, sample mean is 68.0, and standard deviation is 4.0

The Margin of error formula =

± z score × s/√n

Where s = standard deviation= 4

n= Number for samples = 100

z = z score of confidence interval

Margin of error = ± z × 4/√100

Margin of error = ±z × 4/10

=± z × 2/5

= ± z × 0.4

= ± 0.4z

Margin of error = ± 0.4z

6 0
3 years ago
Solve <br> 12-(4×2+2)+3×5=
ella [17]

Answer:

17

Step-by-step explanation:

4 x 2 +2= 10

12- 10=2+3 x 5

2+15

17

5 0
4 years ago
-n/2 - 4 + 9f <br><br><br> Variables <br><br><br> n = 6 <br><br><br> f = 4
mr_godi [17]

Step-by-step explanation:

what do we need to do ?

just calculate the value of the expression with these values for the variables ?

what's the problem ? this is basic calculating :

-6/2 - 4 + 9×4 = -3 - 4 + 36 = 29

remember (please, for your life !) that multiplication and division always have to be calculated before additions and subtractions (except when brackets force is to go a different route).

3 0
3 years ago
3. A submarine dives at an
Vesna [10]

Answer:

The height of deepness of submarine is 424.1 feet  

Step-by-step explanation:

Given as :

The angle at which submarine drives of the surface of water = Ф = 13°

The speed at which submarine travel = s = 760 feet per minute

Let The height of deepness of submarine = h feet

The time taken to reach that deepness = t = 5 minutes

<u>According to question</u>

The height of deepness of submarine = \dfrac{\textrm speed}{\textrm time}

i.e h × cos(90 - Ф) = \dfrac{s}{t}

Or,  h × Sin(Ф) = \dfrac{\textrm 760 feet per min}{8 min}

Or,  h × Sin(13°) = 95 feet

Or,   h × 0.224 = 95 feet

∴  h = \dfrac{95}{0.224}

i.e h = 424.10 feet

So, The height of deepness of submarine = h = 424.10 feet

Hence, The height of deepness of submarine is 424.1 feet  Answer

8 0
3 years ago
On a coordinate grid, the distance between point F and point G is 13 units. Point F is located at (-1, 3). Point G is located at
dangina [55]
Using the distance formula i was able to calculate x=-6
5 0
4 years ago
Read 2 more answers
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