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3 years ago

6 - 2x = 5x - 9x + 8

Mathematics

1 answer:

attashe74 [19]3 years ago

6 0

Answer:

Step-by-step explanation:

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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

Could some one pllz give me real answers

timofeeve [1]

Answer:

See below

Step-by-step explanation:

You just need 1/4 of everything:

1/4 c peanut butter

1/4 c brown sugar

1/4 c gran sugar

1/4 c butter

1/2 egg

1/4 tsp baking soda

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3 years ago

Read 2 more answers

In the expression 12a+5, identify. The coefficient

marysya [2.9K]

A coefficient is a number multiplied by a variable.

In this case, our variable is a.
The coefficient is 12.

(PS: The +5 that isn't being multiplied by a variable is called a constant)

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svlad2 [7]

I have NO idea. Try searching on the enternet

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What is the equation of the line passing through the points (–2, 3) and (1, 4)

finlep [7]

Slope-intercept form:
y=1/3x+11/3

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