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REY [17]
3 years ago
11

Chad measured a house and its lot and made a scale drawing.

Mathematics
1 answer:
KiRa [710]3 years ago
8 0

Answer: 4 maybe because if its 17 inches divide 68 by 17 and it should give you your answer

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Estimate 5 × 4257 then find the product
Arada [10]

You can estimate that 5x4257 is 20,000

to check 5x4257=21,375 which is close to 20,000

5 0
3 years ago
All else being equal, if you cut the sample size in half, how does this affect the margin of error when using the sample to make
gizmo_the_mogwai [7]

Answer:

The margin of error is multiplied by \sqrt{2}

Step-by-step explanation:

margin of error (ME) from the mean can be calculated using the formula

ME=\frac{z*s}{\sqrt{N} } where

  • z is the corresponding statistic of the given confidence level
  • s is the standard deviation of the sample (or of the population if it is known)
  • N is the sample size

Since margin of error is proportional with inverse of \sqrt{N},

if we cut the sample size in half, the margin of error is multiplied by \sqrt{2}.

8 0
4 years ago
8x+3=8x I need help
ANEK [815]
X=5/8 that is the answer lol
5 0
3 years ago
I need help on this please!!<br> #26
Mashutka [201]

Answer:

Area = 240

Step-by-step explanation:

The roof is 4 Isosceles triangles as two sides are the same and the base is different.  The equation for area of an isosceles triangle is area = (1/2) · b · h.  

      Starting the equation, we know the height = 10 based on the graphic, but we need solve for the base using the information provided in the problem 25.  

      If the square gazebo is 48 ft around, then perimeter = 48.  To find one side of the "SQUARE" gazebo, divide the perimeter by 4 to find one side having a length/base of 12.  

      We can assume that the base of the gazebo is the same length as the base of the roof, so the base is 12 as well.  

Finishing the formula we have:

Area of 1 side of gazebo roof= (1/2) * b * h = (1/2) * 12 * 10 = 60  

There are 4 sides to the roof, so multiply the Area of the one side by 4 to find the final result.

Area of full Gazebo roof = 60 * 4 = 240

6 0
2 years ago
Whats 22.75 + 3 + 32.75 − 14.25 ⋅ 1/5? i will give brainliest if you answer correctly!
Ksivusya [100]

8.85 i hope correcttttt pls thank

5 0
3 years ago
Read 2 more answers
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