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Elan Coil [88]
3 years ago
14

HELP URGENT 20 PTS!!!! Describe how to sketch a normal curve with a mean of 50 and a standard deviation of 2. Indicate how you w

ould label the horizontal axis at 1, 2, and 3 standard deviations from the mean
Mathematics
1 answer:
valentinak56 [21]3 years ago
6 0

Answer:

Step-by-step explanation:

Draw a generic normal curve.  Subdivide the x-axis on each side of the center (mean) into four approx. = parts.

Label the mean with '50.'

1 std. dev. below the mean would be 50-2 = 48;

2 std. dev.                             would be 48-2= 46, and

3 std dev.                               would be 46 - 2 = 44

Do the same on the other side of the mean.  

The 3 corresponding values will be 52, 54 and 56.

You might be interested in
HELPPP<br>3 1/5 ÷ 2/7=???​
kvasek [131]

Answer:

11 1/5

Step-by-step explanation:

3 1/5 ÷ 2/7 =

16/5 ÷ 2/7 =

KCF (Keep, Change, Flip)

Keep 16/5

Change ÷ to ×

Flip 2/7 to 7/2

16/5 × 7/2

16 x 7 = 112

5 x 2 = 10

112/10

11 2/10

11 1/5

Hope that helps :)

3 0
2 years ago
Joanne buys a rectangle rug with an area of 34/4 square meters the length of the rug was 7/2
Marrrta [24]

Answer:

5/2

Step-by-step explanation:

area formula = l*w=A

in this case l=7/2, and A=35/4

7/2*w=35/4

divide  7/2 with 35/4 to get the value of "w"

35/4*2/7=5/2

hope this helps, if it does plz vote my answer the brainiest, thanks!

4 0
3 years ago
Could u guys help me plz?
Harman [31]

9514 1404 393

Answer:

  • 84.7 units²
  • 118.125 in³

Step-by-step explanation:

The surface area of the triangular prism is the sum of its base areas and the lateral area. The total area of the two triangular bases is ...

  A = bh = 7(6.1) = 42.7 . . . square units

The lateral area is the product of the perimeter of the base and the length of the prism. The height given for the prism is consistent with it having triangular bases that are equilateral triangles. That is, the unmarked dimension is likely 7 units, so the perimeter is ...

  P = 7+7+7 = 21

and the lateral surface area is ...

  LA = PL = 21·2 = 42

Then the total surface area of the prism is ...

   total area = A + LA = 42.7 +42 = 84.7 . . . square units

__

The volume of a rectangular prism is given by ...

  V = Bh

where B is the area of the base, and h is the height. Your prism has a volume of ...

  V = (26.25 in²)(4.5 in) = 118.125 in³

7 0
2 years ago
I need help on number 1
Neko [114]

Answer:

Step-by-step explanation:

area of circle=πr^2

=3.14*5^2

=3.14*25

=78.5 ft^2

5 0
3 years ago
Given ​ f(x)=x2+14x+40 ​.<br><br><br> Enter the quadratic function in vertex form in the box.
sammy [17]
Please indicate exponentiation using " ^ "   Thanks.

f(x)=x2+14x+40 => <span>f(x)=x^2+14x+40

Next, complete the square:

</span>f(x)=x^2+14x+ 49 - 49 +40 = (x+7)^2 - 9 

Write this in the form y = (x+7)^2 - 9  or y + 9 = (x+7)^2
Comparing this result to y = a(x-h)^2 + k, we see that h = -7 and k=-9

In vertex form, the equation is y + 9 = (x+7)^2 and the vertex is at (-7, -9).
8 0
3 years ago
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