3 years ago

Solve y=4x+8x for x

Mathematics

1 answer:

Semmy [17]3 years ago

5 0

Answer:

x = y/12

Step-by-step explanation:

You might be interested in

Write 39 100 as a decimal number

ladessa [460]

39.0 is the decimal for it

7 0

3 years ago

Read 2 more answers

1 point

dolphi86 [110]

Answer:

Find the unit rate of each printing machine and compare.

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Select all the pairs that are equivalent. Someone please help me. The question is number 2

ycow [4]

the answer is in the picture

8 0

3 years ago

What are the solutions to the quadratic equation below x^2+20x+100=7

aleksandrvk [35]

First you must have the quadratic equal to zero. In order to do this you must subtract 7 to both sides

x^2 + 20x + (100 - 7) = 7 - 7

x^2 + 20x + 93 = 0

Now you must find two numbers who's sum equals 20 and their multiplication equal 93

Are there any? NO!

This means that you have to use the formula:

$\frac{-b±\sqrt{b^{2} - 4ac} }{2a}$

In this case:

a = 1

b = 20

c = 93

$\frac{-(20) plus/minus\sqrt{20^{2} - 4(1)(93)} }{2*1}$

$\frac{-20 plus/minus\sqrt{400 - 372} }{2}$

$\frac{-20 plus/minus\sqrt{28} }{2}$

^^^We must simplify √28

√28 = 2√7

so...

$\frac{-20 plus/minus 2\sqrt{7} }{2}$

simplify further:

$-10 plus/minus\sqrt{7$

-10 + √7

-10 - √7

***plus/minus = ±

Hope this helped!

~Just a girl in love with Shawn Mendes

7 0

3 years ago

L E N 4 8 1 O k M What is the value of k? k=

s2008m [1.1K]

Answer: 2

Step-by-step explanation:

By the geometric mean theorem,

$\sqrt{8k}=4\\\\8k=16\\\\k=\boxed{2}$

6 0

2 years ago