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4 years ago

In triangle ABC, the measure of angle C is 2 times

Mathematics

1 answer:

sdas [7]4 years ago

6 0

Answer:

A=21°;B=53°;C=106°

Step-by-step explanation:

I hope it helps.

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What is the equation of the parabola in vertex form with vertex (2,-4) and directrix y=-6

Pachacha [2.7K]

Answer:

$y=\dfrac{1}{8}(x-2)^2-4$

Step-by-step explanation:

The directrix y=-6 is parallel to the x axes, so parabola has equation of the form

$(x-x_0)^2=2px(y-y_0),$

where $(x_0,y_0)$ is the vertex of parabola and p is parabola's parameter.

By the definition, $\frac{p}{2}$ is the distance from the vertex to the directrix, so

$\dfrac{p}{2}=2\Rightarrow p=4$

Hence, the equation of parabola is

$(x-2)^2=8(y+4)$

See attached diagram for the graph of parabola and its directrix.

In vertex form this equation is

$y=\dfrac{1}{8}(x-2)^2-4$

8 0

3 years ago

Please give me the correct answer

Ronch [10]

Answer:

I believe it's the last one.

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3 years ago

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Which is a correct first step in solving 5 - 2x < 8x - 3?

Natasha2012 [34]

Answer:

5< 10x -3

add like terms first

make sure X's are on one side and numbers on the other

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3 years ago

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6cm, 15cm, 6cm does it make a triangle

kirill115 [55]

Answer:

Yes

Step-by-step explanation:

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Community Service You are making a bulletin board to

liubo4ka [24]

Answer:

72 ads

Step-by-step explanation:

Let

x -----> the number of ads

we know that

5 sheets of construction paper for a title banner plus the number of ads multiplied by one quarter of sheet must be equal to 23 sheets of construction paper

The linear equation that represent this problem is

$\frac{1}{4}x+5=23$

Solve for x

Multiply by 4 both sides to remove the fraction

$x+20=92$

Subtract 20 both sides

$x=92-20$

$x=72\ ads$

3 0

4 years ago