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boyakko [2]
3 years ago
8

The sum of the measures of angle A and angle B equal 90 degrees. What is cos B​

Mathematics
1 answer:
stira [4]3 years ago
4 0

Answer:I think it is 12/25

Step-by-step explanation:

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[(base + base)*high]/2

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We solve 6 + 4

6 + 4 = 10.

Square root of 10:

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\boxed{\textbf{3.16227766017} \boldsymbol{ \ \Leftarrow }\textbf{Square root of 10}}

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3 years ago
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Tomtit [17]
1. C
2. B
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4 0
3 years ago
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The graph shows the charges of an instructor. The instructor charges an initial fee and then an hourly rate of $8.00 an hour for
Butoxors [25]

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$20.00

Step-by-step explanation:

I took a test and got it correct.

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Using triangle A B C as the pre-image and the origin as the center of dilation, which coordinate point is not a coordinate of a
Ostrovityanka [42]

Answer:

The correct option is:

begin ordered pair 4 comma 12 end ordered pair i.e. (4,12).

Step-by-step explanation:

We are given the coordinates of the point A,B and C of the triangle ΔABC as:

A(-1,3) , B(2,1) and C(-2,-1).

Now it is given that there is dilation of this triangle about the origin with a scale factor of 4.

This means that the change in the coordinates after the transformation is given by the rule:

(x,y) → (4x,4y)

As A → A' , B → B' and C → C'

Hence the coordinates A',B' and C' are given by:

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B' are (4×2,4×1)=(8,4)

and C' are (4×-2,4×-1)=(-8,-4).

<em>Hence the coordinate point which is not a coordinate of dilation is:</em>

<em>begin ordered pair 4 comma 12 end ordered pair  i.e. (4,12)</em>

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