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2 years ago

1.6.15

Mathematics

2 answers:

pishuonlain [190]2 years ago

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postnew [5]2 years ago

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(1) Area: 35 y² +13y-12

Fiesta28 [93]

Answer:

35y2+13y−12

=35y2+28y−15y−12

=7y(5y+4)−3(5y+4)

=(7y−3)(5y+4)

Therefore, the possible length and breadth are 7y-3 units and 5y+4 units

6 0

1 year ago

A parabola can be drawn given a focus of (-5, -4)(−5,−4) and a directrix of y=-6y=−6. Write the equation of the parabola in any

lord [1]

Answer:

$\displaystyle \large{y=\dfrac{x^2}{4} + \dfrac{5x}{2} + \dfrac{5}{4}}$

Step-by-step explanation:

Given:

Focus = (-5,-4)
Directrix = -6

To find:

Parabola Equation

Locus of Parabola (Upward/Downward)

$\displaystyle \large{\sqrt{(x-a)^2+(y-b)^2} = |y-c|}$

Where:

(a,b) = focus
c = directrix

Hence:

$\displaystyle \large{\sqrt{(x+5)^2+(y+4)^2}=|y+6|}$

Cancel square root by squaring both sides as we get:

$\displaystyle \large{(x+5)^2+(y+4)^2=(y+6)^2}$

Solve for y-term:

$\displaystyle \large{(x+5)^2=(y+6)^2-(y+4)^2}\\\displaystyle \large{x^2+10x+25=y^2+12y+36-y^2-8y-16}\\\displaystyle \large{x^2+10x+25=4y+20}\\\displaystyle \large{x^2+10x+5=4y}\\\displaystyle \large{y=\dfrac{x^2}{4} + \dfrac{5x}{2} + \dfrac{5}{4}}$

4 0

1 year ago

Yes help please thxssssssssssssssssssssssssssss

Charra [1.4K]

Answer=7/20

If there’s 20 total and there’s 7 blue it should be 7/20

3 0

2 years ago

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Anyone down to zo0m with this chaotic idi0t? I've got nothin to do lol

gladu [14]

Answer:

I wouldddd but I can’t sorry

Step-by-step explanation:

Thanks for the points though :)

5 0

2 years ago

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If 5 candy bars cost 3$ how much would 8 cost

pantera1 [17]

Step-by-step explanation:

5candy cost 3$

1 candy cost =5/3=1.66$

8 candy cost= 8×1.66 =13.33$

<h2>stay safe healthy and happy...</h2>

3 0

2 years ago

Read 2 more answers