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3 years ago

What does 10 x 5 equal?

Mathematics

2 answers:

andriy [413]3 years ago

7 0

I think it should be 50, really sorry if it wasn't multiplying.

scoundrel [369]3 years ago

3 0

I would guess 50. Simple multiplication.

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A parabola can be drawn given a focus of ( - 8,0) and a directrix of y= - 2 What can be said about the parabola?

Tcecarenko [31]

Answer:

The equation of the parabola is:

Explanation:

Please notice that we know that the parabola opens upward or downward, because the directrix is a horizontal line:

−

This tells use that the equation of the parabola of the form:

(

)

Not

(

)

Furthermore, we can see that it must open upward, because the y coordinate of the focus is above the directrix.

The vertex has the same x coordinate as the focus:

And its y coordinate is halfway between the focus and the directrix:

−

Therefore the vertex is

(

)

Use the vertex form of the equation of a parabola that opens upward or downward:

(

−

)

where the vertex is the point

(

)

Substitute the vertex into the equation:

(

−

)

Simplify:

The distance, f, from the vertex to the focus is,

; this allows use to find the value of

, using the equation:

The equation of the parabola is:

Step-by-step explanation:

7 0

3 years ago

The number of counties in state A and the number of counties in state B are consecutive even integers whose sum is 138 138. If s

ss7ja [257]

Answer:

The number of counties in state A are 70.

The number of counties in state B are 68.

Step-by-step explanation:

The number of counties in state A and the number of counties in state B are consecutive even integers whose sum is 138.

Let the two consecutive even integers be x and x+2.

As their sum is 138, we can denote this mathematically as :

$x+x+2=138$

$=> 2x+2=138$

$=> 2x=138-2$

$=> 2x=136$

Now, we get x = 68

And $x+2=68+2$ = 70

Hence, the two numbers are 68 and 70.

So, the number of counties in state A are 70.

The number of counties in state B are 68.

5 0

3 years ago

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5. Which of these points is in the second quadrant?

Crazy boy [7]

Answer:

Step-by-step explanation:

A is locate in the second quadrant

6 0

3 years ago

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Which are the independent events? Check all that apply

olya-2409 [2.1K]

Answer:

Independent events are those that do not depend on others. Two entities does not depend on each other. The change in one entity does not change the other.

So, independent events here are-

1. rolling a number cube twice.

2. flipping a coin 4 times.

3. choosing a meal combination.

Rest two options are dependent on each other.

4 0

4 years ago

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Convert the 55.68 feet swam by the sea horse to inches

saveliy_v [14]

464 inches. Hope this helped! :)

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3 years ago

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