Complete the parametric equations for the given rectangular equation

Mathematics

1 answer:

Vera_Pavlovna [14]2 years ago

3 0

Answer:

a) y =t² -2t -3

b) x =3 sin t

Step-by-step explanation:

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A discount book store sells hardcover books for $8 each and paperbacks for $4 each.The number of hardcover books, h, sold one da

vaieri [72.5K]

Jean-Paul's error is that he should have written the second equation as h = 4 p + 2.

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<h3>How to solve an equation?</h3>

The hardcover book is $8 each and paperbacks for $4 each.

The number of hardcover books, h, sold one day was 2 more than four times the number of paperback books, p, sold that same day.

Therefore,

h = 4p + 2

Hence,

8h + 4p = 160

Therefore, the right equation are as follows:

h = 4p + 2

8h + 4p = 160

Hence, Jean-Paul should have written the second equation as h = 4 p + 2.

learn more on equation here: brainly.com/question/8465417

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3 0

2 years ago

tell me how to answer this please I WILL MARK BRAINLIEST

iogann1982 [59]

Answer:

It equals 3

Step-by-step explanation:

To solve this it is basically like a normal problem you would just take out the X in it and divide 7 by 21 which leaves you with 3.

7 0

2 years ago

What is 3n-2/5=7/10 solve please

Tems11 [23]

Answer: $\bold{n=\dfrac{11}{6}}$

<u>Step-by-step explanation:</u>

$\dfrac{3n-2}{5}=\dfrac{7}{10}\\\\\\10(3n-2)=5(7)\qquad \longrightarrow \quad \text{(cross multiplied)}\\\\30n-20=35\qquad \longrightarrow \quad \text{(distributed)}\\\\30n=55\qquad \longrightarrow \quad \text{(added 20 to both sides)}\\\\n=\dfrac{55}{30}\qquad \longrightarrow \quad \text{(divided 30 from both sides)}\\\\n=\dfrac{11}{6}\quad \longrightarrow \quad \text{(simplified fraction)}\\\\\\\large\boxed{n=\dfrac{11}{6}}\\$