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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics

1 answer:

Burka [1]3 years ago

6 0

Answer: d) 0.9693

Step-by-step explanation:

refer to the z-table attached.

The table shows the percent from the MEAN. The percent below the mean is 50% so that needs to be added to the value in the table.

Look on the left side for 1.8 and the top for 0.07 (which is 1.87).

The value is 0.4693 --> add 0.5 to that value to get 0.9693.

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4. The figure below consists of a square and 2 semicircles, with dimensions as shown. What is the outside perimeter, in centimet

andriy [413]

Answer:

41.13 centimeters (rounded to 2 decimal places)

Step-by-step explanation:

The perimeter is the sum of all sides of the figure.

This figure consists of two semicircular lines (right and left) and two lines (top and bottom). We add up all of them and find the perimeter of the figure.

Left:

Semicircle perimeter = half of circle perimeter (aka circumference)

Circumference = 2πr, where r is the radius (half of diameter)

The diameter of the circle is 8, so radius is 8/2 = 4

So the circumference is:

C = 2πr = 2π(4) = 8π

Semicircle perimeter is half of that, so, 8π/2 = 4π

Right:

This is exactly same semicircle as the left one, so its perimeter is also 4π

Top:

The top is a side with length 8

Bottom:

Same as top, so the length is 8

Total perimeter = 4π + 4π + 8 + 8 = 16 + 8π = 41.13 centimeters

6 0

3 years ago

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Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

20,24,25,27,29,31,34

7 0

3 years ago

Sarah, amy and liam stand on some weighing scales two at a time.here are the measurements:sarah and amy 70kgsarah and liam 80kgl

OLga [1]

A+s=70, s+l=80, l+a=80

from the first s=70-a which makes the second:

70-a+l=80

-a+l=10

a=l-10 which makes the third:

l+l-10=80

2l-10=80

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5 0

4 years ago

Susan paid $240 to have her house decorated. The materials used to decorate the house cost $115, and service was charged at five

Setler [38]

Answer:

25 hours

Step-by-step explanation:

240 - 115= 125

125 divided by 5= 25

7 0

3 years ago

It’s number 5 what is the domain and range plz help urgent

Kaylis [27]

Answer:

Domain: -2,-1,0,3 Range: -2,-1,0,3

Step-by-step explanation:

The x values (horizontal) is the domain and the dots on the x values are -2,-1,0,3. The y values is the range and the dots on the y values are -2,-1,0,3. Hope this helps :)

5 0

3 years ago