4 years ago

What is the value of the expression 7+2-4.5x3+8

Mathematics

1 answer:

bonufazy [111]4 years ago

6 0

First you must multiply 4.5*3, then add and subtract from.left.to right

You might be interested in

I need answer fast plz

Elena L [17]

Answer:

use acacolator

Step-by-step explanation:

hhhhahahahahahahaahah pp

7 0

3 years ago

Solve -7x^2+x+9=-6x quadratic formula

myrzilka [38]

Answer:

$-7x^2+x+9=-6x$

$-7x^2+x+9+6x=-6x+6x$

$-7x^2+7x+9=0$

$quadratic\: formula$

$x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}$

$\sqrt{-7^{2} -4(-7)\times9} =\sqrt{301}$

$x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}$

$\frac{-7+\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7+\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7+\sqrt{301}}{-14}$

$\frac{-7-\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7-\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7-\sqrt{301}}{-14}$

$answer=\frac{7+\sqrt{301}}{14}$

$OAmalOHopeO$

7 0

3 years ago

I Really need help with this!

Scrat [10]

Where the heck did x come from!

5 0

3 years ago

Read 2 more answers

Please help me find the value of x. asap •

Juliette [100K]

How much after subtraction

6 0

3 years ago

Read 2 more answers

What is 3(x - 4)= 12x

xxMikexx [17]

3x-12 = 12x

-12 = 9x

-12/9 = x

x= -4/3

4 0

3 years ago

Read 2 more answers