Ask question

Ask question

All categories

3 years ago

14

Fraction answer 21/3+13/4

1 answer:

Katen [24]3 years ago

7 0

Answer:

10.25

Step-by-step explanation:

You might be interested in

Im so confused pls help!

Digiron [165]

$-\frac{1}{2} *(-\frac{5}{6} )+(-\frac{1}{2} )*\frac{1}{3} \\=\frac{5}{12} -\frac{1}{6} \\=\frac{5}{12} -\frac{2}{12} \\=\frac{3}{12} \\\frac{1}{4}$

7 0

2 years ago

Read 2 more answers

PLEASE HELP ASAP!!!! BRAINLIEST ANSWER AWAITS YOU +30 POINTS!!

tester [92]

C is the correct answer

Hope this helps :D

8 0

3 years ago

Read 2 more answers

What is the zero in the quadratic function f(x)= 9x^2-54x-19?

Alex17521 [72]

Answer:

6.33... and 0.333...

Step-by-step explanation:

The quadratic formula is

$x=\frac{-b+\sqrt{b^2-4ac} }{2a}$ .

It is important because while some quadratics are factorable and can be solved not all are. The formula will solve all quadratic equations and can also give both real and imaginary solutions. Using the formula will require less work than finding the factors if factorable. We will substitute a=9, b=-54 and c=-19.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-54)+/-\sqrt{(-54)^2-4(9)(-19)} }{2(9)}\\x=\frac{54+/-\sqrt{2916+684} }{18}$

We will now solve for the plus and the minus.

The plus,,,

$x=\frac{54+\sqrt{3600}}{18}\\x=\frac{54+60}{18}\\x=\frac{114}{18}\\x=6.3$

and the minus...

$x=\frac{54-\sqrt{3600}}{18}\\x=\frac{54-60}{18}\\x=\frac{-6}{18}\\x=-0.333...$

8 0

3 years ago

Which of the three equations have infinitely many solutions?

mina [271]

Answer:

I need to know the questions luv.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Can a unit rate be a fraction

kotykmax [81]

Yes it can, it has to be a fraction

3 0

3 years ago

Read 2 more answers