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Elan Coil [88]
3 years ago
5

-400 = -8 (2+6r) solve​

Mathematics
1 answer:
Leto [7]3 years ago
6 0

Answer: r=8

Step-by-step explanation:

-400/-8=400/8=5, then 48=6r equals 8.

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Do the concepts of class​ limits, marks,​ cutpoints, and midpoints make sense for qualitative​ data? Explain your answer.
tatyana61 [14]
Class limits are the smallest and the largest data value that can go into a class.

Class marks are the midpoints of the classes. They are obtained by averaging the limits.

Cutpoints are<span> specified values used to sort continuous variables into discrete categories.

</span><span>Class Midpoint is the middle value of each data class.


For qualitative data, </span>c<span>utpoints and midpoints make​ sense, but class limits and marks do​ not, since qualitative data cannot be grouped using Limit grouping.

option D.
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4 years ago
Find the distance between A and B
CaHeK987 [17]
The answer to this will be 8
7 0
3 years ago
Read 2 more answers
Please help please please
Natalka [10]
<h2><u>Answer:</u></h2>

'?' is <u>88°.</u>

<h2><u>Step-by-step explanation:</u></h2>
  • First, we work out the final angle of the left triangle, which has a total of 180°. To do this we take 40° and 66° from 180°, giving us <u>72°</u>
  • Because there is a straight line along the bottom (which will total 180°), we take both 72° and 56° from 180°, giving us <u>52°</u>, which is the bottom left angle of the right triangle.
  • Finally, to work out '?', we take 52° and 40° from 180° to get our final answer of <u>88°.</u>
5 0
3 years ago
The diameter of the raw cookie is 2 1 2 inches. After baking the cookie, the diameter is 5 1 2 inches. By what factor does the c
elena-14-01-66 [18.8K]

Answer:

120%

Step-by-step explanation:

Given that,

The diameter of the raw cookie is 2 1/2 inches i.e. 5/2 inches

After baking the cookie, the diameter is 5 1/2 inches i.e. 11/2inches

We need to find by what factor does the cookie expand.

x=\dfrac{5\dfrac{1}{2}-2\dfrac{1}{2}}{2\dfrac{1}{2}}\times 100\\\\=\dfrac{\dfrac{11}{2}-\dfrac{5}{2}}{\dfrac{5}{2}}\times 100\\\\=120\%

So, the cookie will expand 120%.

3 0
3 years ago
Read 2 more answers
Need help
kow [346]

1)\\\\\dfrac{-45}{-5}=45:5=9


2)\\(-2)(4)=-8\\(2)(-4)+-8\\-16:2=-8\\-16:(-2)=8\neq-8\\\\\text{All of the following expressions have the same value except}\ -16:-2.


3)\\-3^2=-3\cdot3=-9


(-2)^4=(-2)(-2)(-2)(-2)=16\\-2^4=-(2)(2)(2)(2)=-16\neq16\\(-2)(-2)(-2)(-2)=16\\2^4=(2)(2)(2)(2)=16\\\\\text{All of the following are equivalent except}\ -2^4.

3 0
4 years ago
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