All categories

3 years ago

Solve the equatione

Mathematics

2 answers:

Damm [24]3 years ago

7 0

X=2.2 x= 2 2/9 hope this helps

iren2701 [21]3 years ago

6 0

Answer:

x = 20/11

Step-by-step explanation:

1/2x - 3/4x = 5 - 5/2x

1/4x + 5/2x = 5

11/4x = 5

11x = 20

x = 20/11

You might be interested in

What is the perimeter of ^PQR with vertices P(-2,9) Q(7,-3) and R(-2,-3) in the coordinate plane?

e-lub [12.9K]

Using the distance formula we can determine the perimeter of PQR.

Distance formula: d=√(x-x1)^2+(y-y1)^2
distance of PR: √(-2+2)^2+(9+3)^2= 12
distance of QR: √(7+2)^2+(-3+3)^2=9
distance of PQ: √(7+2)^2+(-3-9)^2= 15

Perimeter: 12+9+15=36

5 0

3 years ago

Let f(x)= x^2-4x-c. Find a nonzero value of c such that f(c)=c.

Dimas [21]

Answer:

The nonzero value of c will be:

$c = 6$

Step-by-step explanation:

Given the function

$f\left(x\right)=\:x^2-4x-c$

$f\left(c\right)=\:c^2-4c-c$

$f(c) = c$

$c=\:c^2-4c-c$

switching the sides

$c^2-4c-c=c$

subtract c from both sides

$c^2-4c-c-c=c-c$

$c^2-6c=0$

$c\left(c-6\right)=0$

Using the zero factor principle

$\:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$c=0\quad \mathrm{or}\quad \:c-6=0$

so, the solutions to the quadratic equations are:

$c=0,\:c=6$

Therefore, a nonzero value of c will be:

$c = 6$

5 0

3 years ago

What is the value of the expression below?<br> 72 ÷ 4.5x3+8

Fofino [41]

Answer:

Step-by-step explanation:

Apply PEMDAS:

$72 / 4.5*3+8\\\\16*3+8\\\\48+8\\\\\boxed{56}$

4 0

3 years ago

Find a coterminal angle to -180 degrees.

maw [93]

Answer:

540 degrees

Step-by-step explanation:

4 0

3 years ago

Adison earned $25 mowing her neighbors lawn. Then she loaned her friend $18 and got $50 from her grandmother. She now has $86. H

Marat540 [252]

29 dollars because 25-18+50=57 and 86-57=29

4 0

3 years ago

Solve the equatione ​

Solve the equatione