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zloy xaker [14]
3 years ago
7

Help please and show the steps

Mathematics
1 answer:
marshall27 [118]3 years ago
8 0

Answer:

-sin(2A)

Step-by-step explanation:

1-(sin(A)+cons(A))^2

1-(sin(A)^2+2sin(A)cos(A)+cos(A)^2) :use FOIL to get it

1-(1+sin(2A))

1-1-sin(2A)

-sin(2A)

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What is the coordinate j(2,-5) after a reflection in the line y=x?​
kenny6666 [7]

Answer:

(- 5, 2 )

Step-by-step explanation:

Under a reflection in the line y = x

a point (x, y ) → (y, x ), thus

(2, - 5 ) → (- 5, 2 )

7 0
3 years ago
The volume of the triangular prism is 12.5 m³. The length is 2.5 m and the base is 2 m. What is the width?
Fantom [35]

Answer:

  (4)  5 m

Step-by-step explanation:

You want the length of side x of a right triangular prism with base edge lengths of 2.5 m and 2 m, and a volume of 12.5 m³.

<h3>Volume</h3>

The volume of the prism is given by the formula ...

  V = Bh

where B is the area of the base:

  B = 1/2bh . . . . where b and h are the leg dimensions of the right triangle

Using these formulas together, we have ...

  V = 1/2(2.5 m)(2 m)x

  12.5 m³ = 2.5x m²

Dividing by 2.5 m², we find x to be ...

  (12.5 m³)/(2.5 m²) = x = 5 m

The dimension labeled x has length 5 meters.

6 0
1 year ago
What multiplication problem matches this addition problem?
tiny-mole [99]
6*7=42
It’s the answer I guess.
8 0
3 years ago
Read 2 more answers
The surface area of the prism is _____ square units.
jasenka [17]
Here is the equation to find that answer A=bh+2ls+ib i got it off line if its not right im sory
7 0
3 years ago
How do you solve this?
konstantin123 [22]

Answer:

145

Step-by-step explanation:

180-137=43

43+102=145

4 0
3 years ago
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