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2 years ago

Which of the angles are corresponding angles?

Mathematics

1 answer:

lord [1]2 years ago

4 0

Answer:

E and F

Step-by-step explanation:

1 and 5

3 and 7 are corresponding angles.

A pair of angles on the same side of the transversal, one of which is an interior angle and the other one is an exterior angle but do not form a linear pair is known as corresponding angles

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Twenty-five employees decide to chip in to buy a small refrigerator for the office. If the cost of the refrigerator is $275, how

Lynna [10]

275 / 25 = 11 25 goes into 275 11 times

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3 years ago

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Multiplying Binomials: (−2h+9)(9h−2) = ?

oee [108]

(−2h+9)(9h−2)

-18h^2 + 4h + 81h - 18

Answer: -18h^2 + 85h - 18

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3 years ago

Solve the equation cot 2x + cot x =3

rusak2 [61]

tan2x*cotx - 3 = 0

We know that: tan2x = sin2x/cos2x and cotx = cosx/sinx

==> sin2x/cos2x *cosx/sinx = 3

Now we know that sin2x = 2sinx*cosx

==> 2sinxcosx/cos2x * cosx/sinx = 3

Reduce sinx:

==> 2cos^2 x/ cos2x = 3

Now we know that cos2x = 2cos^2 x-1

==> 2cos^2 x/(2cos^2 x -1) = 3

==> 2cos^2 x = 3(2cos^2 x -1)

==> 2cos^2 x = 6cos^2 x - 3

==> -4cos^2 x= -3

==> 4cos^2 x = 3

==> cos^2 x = 3/4

==> cosx = +-sqrt3/ 2

==> x = pi/6, 5pi/6, 7pi/6, and 11pi/6

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3 years ago

On the set of axes below, draw the graph of y=x^2-4x-1

never [62]

9514 1404 393

Answer:

axis of symmetry: x = 2

see below for a graph

Step-by-step explanation:

You can complete the square to put the equation in vertex form.

y = (x^2 -4x +4) -1 -4

y = (x -2)^2 -5 . . . . . . vertex is (2, -5)

The equation of the axis of symmetry is the equation of the vertical line through the vertex:

x = 2 . . . . . axis of symmetry

Points on the graph are easily found by using integer values on either side of x=2. Points on one side of the axis of symmetry are mirrored on the other side of it.

5 0

2 years ago

Which expression is equivalent to 3(1 + x) + 7? Ax+-7 B) X + 10 C)3×+7 D)3×+10

AlladinOne [14]

Answer: D

Step-by-step explanation:

3(1+x)+7 = 3+3x+7 =3x+10

6 0

2 years ago

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