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astraxan [27]
2 years ago
15

Stephen is making a map of his neighborhood. He knows the following info: the distance from his home to the park is 10 blocks th

e distance from his home to his friends house is 15 blocks the distance from the grocery store to his home is 9 blocks
Mathematics
1 answer:
SpyIntel [72]2 years ago
4 0
An architect plans to make a drawing of the room of a house. The segment LM represents the ceiling of the room. He wants to construct a line passing through Q and perpendicular to side LM to represent a wall of the room. He uses a straightedge and compass to complete some steps of the construction, as shown below:
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a circular frame that is 3 inches wide surrounds the mirror what is the combined area, in square inches, of the circular mirror
NARA [144]
The answer is 2.25 square inches or 7.065 square inches.
3 0
3 years ago
Plz subscribe to my channel Mr.PorkXchop 101
cricket20 [7]

Answer:

Will do

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the minimum sample size needed to estimate the percentage of Democrats who have a sibling. Use a 0.1 margin of error, use a
Brums [2.3K]

Answer:

The minimum sample size is  n  =135

Step-by-step explanation:

From the question we are told that

   The confidence interval is ( lower \ limit  = \  0.44,\ \ \   upper \ limit  = \ 0.51)

    The margin of error is  E =  0.1

   

Generally the sample  proportion can be mathematically evaluated as

     \r p = \frac{ upper \ limit  + lower \ limit }{2}

    \r p = \frac{ 0.51 + 0.44}{2}

    \r p = 0.475

Given that the confidence level is  98% then the level of significance can be mathematically evaluated as

         \alpha = 100 -  98

        \alpha = 2\%

        \alpha =0.02

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table  

   The value is

        Z_{\frac{\alpha }{2} } =  2.33

Generally the minimum sample size is evaluated as

      n  =[ \frac { Z_{\frac{\alpha }{2} }}{E} ]^2 *  \r p (1- \r p )

     n  =[ \frac { 2.33}{0.1} ]^2 *  0.475(1- 0.475 )

     n  =135

6 0
3 years ago
Find the ratio of the sequence 3 9 27 81
Tatiana [17]
The common ratio of the sequence 3, 9, 27, 81 is 3
n to the power of 3
1 to the power of 3 = 3
2             ...             = 9
3             ...             = 27
4             ...             =81
7 0
2 years ago
Explain how to multiply 641 by 63.
alex41 [277]

Answer:

sure

Step-by-step explanation:

1) line up 641 and 63

   641

x__63_

2) multiply 3 by 1 then 4 then 6 and carry the tenths place number if there is one

  1

  641

x__63_

  1923

3) add a zero under the 3 to hold the ones place and multiply 6 by 1 then 4 then 6 and since we’re working with the tenths place now and dont forget to carry numbers if you need to

     2

     641

  x__63_

     1923

  38460

4) add your two numbers together

    1 1    

    38460

+___1923_

     40383

so that is your answer “40383”

lol sorry that this was so long

4 0
2 years ago
Read 2 more answers
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