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Yanka [14]
4 years ago
7

Simplify the expression sin 2x+ sin x + cos2x - 1.

Mathematics
1 answer:
dezoksy [38]4 years ago
7 0

Answer:

Sin(2x)+sin(x)+cos(2x)-1

Step-by-step explanation:

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ZE is the angle bisector of measure YEX and the perpendicular bisector of GF, GX is the angle bisector of measure YGZ and the pe
den301095 [7]

Answer:

C

Step-by-step explanation:

The center of inscribed circle into triangle is point of intersection of all interior angles of triangle.

The center of circumscribed circle over triabgle is point of intersection of perpendicular bisectors to the sides.

Circumscribed circle always passes through the vertices of the triangle.

Inscribed circle is always tangent to the triangle's sides.

In your case angles' bisectors and perpendicular bisectors intesect at one point, so point A is the center of inscribed circle and the center of corcumsribed circle. Thus, these circles pass through the points X, Y, Z and G, E, F, respectively.

7 0
3 years ago
Please help!!!!!!!! thank you so so much
Setler79 [48]
137.1

You would find the area of the semi circle by using the circle formula and dividing by 2, which would be 8

Then find the area of the rectangle, which would be 112. 
3 0
3 years ago
Write an equation of the line that passes through the given point and is (a) parallel and (b) perpendicular to the given line.
Levart [38]
The rule of the equation of the line is y=mx+b but since we don't have a B so it will be y=mx so in order to solve it you need to exchange the ordered pairs 
X=4, y=3
so 3=m(4)
so the slope which is m 
m=4 over 3 (4/3)

4 0
4 years ago
Arianna is buying plants for her garden. She buys 15 flowering plants for $96. Pink flowering plants sell for $8, and purple flo
Zielflug [23.3K]

Answer:

  • 7 pink flowering plants

Step-by-step explanation:

  • Total number of plants = 15
  • Total cost = $96
  • Cost of pink flowering plant = $8
  • Cost of purple flowering plant = $5

<u>Let x and y be the number of plants bought. Then we have equations:</u>

  • 8x + 5y = 96
  • x + y = 15 ⇒ y = 15 - x

<u>Substituting y in the first equation:</u>

  • 8x + 5y = 96
  • 8x + 5(15 - x) = 96
  • 8x + 75 - 5x = 96
  • 3x = 96 - 75
  • 3x = 21
  • x = 7

Correct option is the second one

3 0
3 years ago
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For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitt
ratelena [41]
The slope is represented by 5h and the y-intercept is 3. If she were to babysit for 5 hours, she would make $28. The equation is 5h + 3= C
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3 years ago
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