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3 years ago

15 POINTS AND BRAINLIEST

Mathematics

2 answers:

defon3 years ago

6 0

Answer: 20/4 ANS=5/1

Step-by-step explanation:

rosijanka [135]3 years ago

3 0

Here, (x,y) = (20,4)
Here, we can see 4 * 5 = 20.
It means, x is 5 times y. so, y would be 1/5 time of x

In short, Your Answer would be y = 1/5 x

Hope this helps!

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goblinko [34]

Answer:

I believe the answer is 4.943 :)

Step-by-step explanation:

82.162-77.219= 04.943

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2 years ago

What is the direction of a line with the slope 3/-2

adelina 88 [10]

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3 years ago

I need help me please :(

shepuryov [24]

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8 0

3 years ago

Maggie's brother is 9 years younger than three times her age. The sum of their ages is 43. How old is Maggie?

bekas [8.4K]

Answer:

Maggie's age is 13 years

Step-by-step explanation:

Let

x ------> Maggie's brother age

y ------> Maggie's age

we know that

x+y=43 ------ > equation A

x=3y-9 ------> equation B

substitute equation B in equation A and solve for y

(3y-9)+y=43

4y=43+9

4y=52

y=13

therefore

Maggie's age is 13 years

5 0

3 years ago

The equation of a parabola is given.

KiRa [710]

Answer:

The coordinates of the focus of the parabola is:

$\text{Focus}=(\dfrac{3}{28},\dfrac{125}{7})=(0.10714,17.8571)$

Step-by-step explanation:

We know that for any general equation of the parabola of the type:

$(x-h)^2=4p(y-k)$

The focus of the parabola is given by:

Focus= (h,k+p)

Here we are given a equation of the parabola as:

$y=14x^2-3x+18$

On changing the equation to general form as follows:

$y=14(x^2-\dfrac{3}{14}x)+18\\\\\\y=14((x-\dfrac{3}{28})^2-(\dfrac{3}{28})^2)+18\\\\y=14(x-\dfrac{3}{28})^2-\dfrac{9}{56}+18\\\\\\y=14(x-\dfrac{3}{28})^2+\dfrac{999}{56}\\\\y-\dfrac{999}{56}=14(x-\dfrac{3}{28})^2\\\\(x-\dfrac{3}{28})^2=\dfrac{1}{14}(y-\dfrac{999}{56})\\\\(x-\dfrac{3}{28})^2=4\times \dfrac{1}{56}(y-\dfrac{999}{56})$

Hence, we have:

$h=\dfrac{3}{28}\ ,\ k=\dfrac{999}{56}\ ,\ p=\dfrac{1}{56}$

Hence,

$k+p=\dfrac{1000}{56}=\dfrac{125}{7}$

Hence, focus is:

$\text{Focus}=(\dfrac{3}{28},\dfrac{125}{7})=(0.10714,17.8571)$

6 0

3 years ago

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