All categories

3 years ago

What is the value of b2 - 4ac for the following equation? 5x2 + 7x = 6 9 81 169

Mathematics

2 answers:

creativ13 [48]3 years ago

7 0

The answer is 169. ;)

erastova [34]3 years ago

5 0

A=5,b=7,c=-6
${7}^{2} - 4(5)( - 6) = 169$

You might be interested in

HELP ME ILL GIVE YALL BRAINLIESST

Hatshy [7]

Answer:

615.44 cm^2

Step-by-step explanation:

here r, radius is 14 cm and π as 3.14

area of circle = π $r^{2}$

3.14 * 14^2

3.14 * 14 * 14

615.44cm^2

8 0

2 years ago

Read 2 more answers

How many miles are n 31,680 feet?

marta [7]

There are 6 miles in 31,680 feet

3 0

2 years ago

Select the correct answer.

Alika [10]

<h3>I'll teach you how to solve x= 12 - y, 2x + 3y = 29</h3>

------------------------------------------------------------

x= 12 - y, 2x + 3y = 29

Substitute x=12-y:

[2(12-y)+3y=29]

Isolate y for 2(12-y)+3y=29:

2(12-y)+3y=29= y= 5

Substitute y=5:

x=12-5

12-5= 7

x=7

Your Answer Is (C) x=7, y=5

plz mark me as brainliest if this helped :)

7 0

3 years ago

Read 2 more answers

12y+d=−19y+t<br> Solve for y

olya-2409 [2.1K]

Hi!

Solve for d.

$12y+d=-19y+t$

<em>Subtract by 12y from both sides.</em>

$12y+d-12y=-19y+t-12y$

$Answer---> d=-31y+t$

Solve for y.

<em>Add 19y from both sides.</em>

$d+12y+19y=t-19y+19y$

$d+31y=t$

<em>Add d from both sides</em>

$d+31y+-d=t+-d$

$31y=-d+t$

<em>Divide by 31 from both sides.</em>

$\frac{31y}{31}=\frac{-d+t}{31}$

$Answer ----> y=\frac{-1}{31} d+\frac{1}{31}t$

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

7 0

3 years ago

Giving points pls help me

liberstina [14]

Answer:

I thinks its A, not 100% sure

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers