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lord [1]
2 years ago
9

I forgot how to do this can someone pls help me.

Mathematics
2 answers:
lianna [129]2 years ago
8 0
Wouldn’t it be 180 unless
xz_007 [3.2K]2 years ago
7 0
264 i think (if not less but i’m not sure)
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The coefficient of determination is used to: compute correlations for truncated ranges. compare the relative strength of coeffic
kozerog [31]

Answer: compare the relative strength of coefficients.

Step-by-step explanation: The Coefficient of determination usually denoted as R^2 is obtained by taking the squared value of the correlation Coefficient (R). It's value ranges from 0 to 1 and the value obtained gives the proportion of variation in the dependent variable which could be attributed to it's correlation or relationship to th independent variable. With a R^2 value close to 1, this means a large portion of Variation in a variable A could be explained due to changes in variable B while a low value signifies a low variance between the variables. Hence, the Coefficient of determination is used in comparing the relative strength of the Coefficients in other to establish whether a weak or strong relationship exist.

6 0
3 years ago
in a survey 27% of the people chose salads over a meat dish. In all 81 people chose salads. how many people were in the survey?
Zolol [24]

Answer:

300

Step-by-step explanation:

27% = 81

1% = 81/27 = 3

100% = 100x3 = 300people

3 0
3 years ago
Please help answer these questions. My teacher said they were really easy but I just don't understand. Will mark brainliest !!!
kodGreya [7K]

Answer:

1.  A = 59

2.  A = 43

Step-by-step explanation:

If we have a right triangle  we can use sin, cos and tan.

sin = opp/ hypotenuse

cos= adjacent/ hypotenuse

tan = opposite/ adjacent


For the first problem, we know the opposite and adjacent sides to angle A

tan A = opposite/ adjacent

tan A = 8.8 / 5.2

Take the inverse of each side

tan ^-1 tan A = tan ^-1 (8.8/5.2)

A = 59.42077313

To the nearest degree

A = 59 degrees


For the second problem, we know the  adjacent side and the hypotenuse to angle A

cos A = adjacent/hypotenuse

cos A = 15.3/21

Take the inverse of each side

cos ^-1 cos A = cos ^-1 (15.3/21)

A = 43.23323481

To the nearest degree

A = 43 degrees


6 0
3 years ago
H+1/2=3 1/4 what is the vaule of h
nika2105 [10]
The answer is 11/4 or 2 3/4
6 0
4 years ago
(16x^2 - 25) ÷ (4x + 5)<br> DO NOT INCLUDE PARENTHESES IN YOUR ANSWER
Marina86 [1]
\cfrac{16x^2-25}{4x+5}=  \cfrac{(4x)^2-5^2}{4x+5}=  \cfrac{(4x-5)(4x+5)}{(4x+5)}= 4x-5
3 0
3 years ago
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