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Sloan [31]
2 years ago
11

Pleaseeee help me solve this

Mathematics
1 answer:
Ulleksa [173]2 years ago
6 0

Answer:

3/5 is the answer!

Step-by-step explanation:

y = 3x/5 also means y = 3/5 * x

Which means in y = mx form, the 3/5 = m

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Write the equation for a parabola with a focus at (6,-4) and a directrix at y= -7
shtirl [24]

Given:

The focus of the parabola is at (6,-4).

Directrix at y=-7.

To find:

The equation of the parabola.

Solution:

The general equation of a parabola is:

y=\dfrac{1}{4p}(x-h)^2+k                  ...(i)

Where, (h,k) is vertex, (h,k+p) is the focus and y=k-p is the directrix.

The focus of the parabola is at (6,-4).

(h,k+p)=(6,-4)

On comparing both sides, we get

h=6

k+p=-4                            ...(ii)

Directrix at y=-7. So,

k-p=-7                            ...(iii)

Adding (ii) and (iii), we get

2k=-11

k=\dfrac{-11}{2}

k=-5.5

Putting k=-5.5 in (ii), we get

-5.5+p=-4

p=-4+5.5

p=1.5

Putting h=6, k=-5.5,p=1.5 in (i), we get

y=\dfrac{1}{4(1.5)}(x-6)^2+(-5.5)

y=\dfrac{1}{6}(x-6)^2-5.5

Therefore, the equation of the parabola is y=\dfrac{1}{6}(x-6)^2-5.5.

4 0
2 years ago
The probability that Ismael makes a basket is 7/10. If he shoots 100 baskets, how many can he expect to make?
sdas [7]

Answer:

70 baskets

Step-by-step explanation:

Let b be the number of baskets he will make if he shoots 100 baskets.

\frac{7}{10} =\frac{b}{100} \\700=10b   (now divide by 10 from both sides)\\

7 0
3 years ago
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ValentinkaMS [17]

Answer:

In what book?

Step-by-step explanation:

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3 years ago
Solve the proportion.
masya89 [10]

Answer:

14

Step-by-step explanation:

21 divided by 1.5 from the 3/2 you get 14

3 0
2 years ago
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-3(2x-4)&lt;4<br><br> will mark brainlist
Vlad [161]

Answer:

96 answer

Step-by-step explanation:

hope you like it

8 0
2 years ago
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