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Nana76 [90]
3 years ago
14

List all pairs of congruent angles

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
8 0

Congruent angles of what... be more specific please..

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What is the exact value of cos (67.5° )?
Brilliant_brown [7]

Answer:

0.38268343

Step-by-step explanation:

cos( 67.5 )

Rewrite  

67.5

as an angle where the values of the six trigonometric functions are known divided by  2 . cos ( 135\ 2)

Apply the cosine half-angle identity.

±

√

1

+

cos

(

135

)

2

 

Change the  

±

to  

+

because cosine is positive in the first quadrant.

√

1

+

cos

(

135

)

2

Simplify  

√

1

+

cos

(

135

)

2

√

2

−

√

2

2

The result can be shown in multiple forms.

Exact Form:

√

2

−

√

2

2

Decimal Form:

0.38268343

…

6 0
3 years ago
Desmond brought a 70 feet roll of copper for 14.70 what is the price per foot
alekssr [168]
70 / 14.7 = 4.8
the correct answer is 4.8
Hope I helped. =)
4 0
3 years ago
Read 2 more answers
2y to the 2nd power +11y +14
goldfiish [28.3K]

2y^2 +11y+14 =(2y+7)(y+2)

Step-by-step explanation:

Given

2y^2 +11y+14

=2y^2 +(7+4)y+14

=2y^2+7y+4y+14

= y(2y+7) + 2(2y+7)

=(2y+7)(y+2)

3 0
3 years ago
A turtle is 20562056 inches below the surface of a pond. It dives to a depth of 32143214 inches. What is the change in the turtl
Crank
The diffrent is 11585158 in his postion
6 0
3 years ago
Mean and median height: An association of U.S. dog breeders reported in a recent year that the mean height for their adult dogs
Ray Of Light [21]

Answer:

We should expect the histogram to be skewed to the right.

Step-by-step explanation:

The median separates the upper half from the lower half of a set. So 50% of the values in a data set lie at or below the median, and 50% lie at or above the median.

The mean is the average of all the values in the set.

Median, mean and skewness of the histogram:

If the mean is greater than the median, the histogram has positive skewness, that is, it is skewed to the right.

If the mean is lesser than the median, the histogram has negative skewness, that is, it is skewed to the left.

If the mean and the median are equal, the histogram is approximately symmetric.

In this problem, we have that:

Mean = 22

Median = 15.9

So we should expect the histogram to be skewed to the right.

7 0
3 years ago
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