3 years ago

75y^3+100y^2-3y-4=0

Mathematics

1 answer:

sweet [91]3 years ago

7 0

Move all terms to the left side and set equal to zero. Then set each factor equal zero.
y = -4/3, 1/5, 1/5

You might be interested in

Use the following image to assist in your answer.<br> a =<br> - 6<br> - 9<br> - 4

vfiekz [6]

Step-by-step explanation:

Pythagoras' theorem for the smallest one :

$c^2 = 4^2 + 6^2$

$c^2 = 16 + 36$

$c^{2}$ = 52

Pythagoras' theorem for the middle one :

$b^{2}$ = $6^{2}$ + $a^{2}$

Pythagoras' theorem for the biggest one :

$(4+a)^2 = c^2 + b^2$

$16 + 8a + a^2 = 52 + b^2$

Using the formula before (for $b^2$ ) it becomes :

$16 + 8a + a^2 = 52 + (6^2 + a^2)$

$16 + 8a + a^2 = 52 + 6^2 + a^2$

$16 + 8a = 52 + 6^2$

16 + 8a = 52 + 36

16+8a = 88

8a = 88-16

8a = 72

$a = \frac{72}{8}$

a = 9

Verifying :

$b^2 = 6^2 + a^2$

$b^2 = 36 + 81$

$b^2 = 117$

$b^{2}$ = 117

The biggest one :

$(4+a)^2 = c^2 + b^2$

$(4+9)^2 = 52 + 117$

$13^2 = 169$

True

8 0

2 years ago

Whats 600 divied by 300

kolbaska11 [484]

Answer:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Which reflection rule, if any, can be used to prove that rectangle A(-8, -3), B(-2,-3), C (-2,-6), D(-8,-6) and rectangle A'(8.-

Zina [86]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Help plz solve 2y-3=4y+6 y=

Masja [62]

Here is your answer.

3 0

2 years ago

Read 2 more answers

What is 5.5 written as a fraction in simplest form

julia-pushkina [17]

5.5 as a fraction is 11/2

6 0

3 years ago

Read 2 more answers