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Daniel [21]
2 years ago
8

I WILL GIVE BRAINLYIST A square is shown below. Which expression can be used to find the area, in square units, of

Mathematics
1 answer:
NeX [460]2 years ago
7 0
I believe it’s the second option sorry if I’m incorrect
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Solve for x.<br> 6x + 5 = -x + 40<br> B. x= -5<br> A. x = -9<br> D. x= 9<br> C. x = 5
denis23 [38]
C, x=-5, hope this helps
3 0
2 years ago
What are the roots to<br> the equation<br> 2x² + 6x-1=0?
lys-0071 [83]

Answer:

The roots of  equations are as m =  \frac{-3}{2} + \frac{\sqrt{11} }{2}  And n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}    

Step-by-step explanation:

The given quadratic equation is 2 x² + 6 x - 1 = 0

This equation is in form of a x² + b x + c = 0

Let the roots of the equation are ( m , n )

Now , sum of roots = \frac{ - b}{a}

And products of roots = \frac{c}{a}

So, m + n = \frac{ - 6}{2} = - 3

And m × n =  \frac{ - 1}{2}

Or, (m - n)² = (m + n)² - 4mn

Or, (m - n)² = (-3)² - 4 (\frac{ - 1}{2})

Or, (m - n)² = 9 + 2 = 11

I.e m - n = \sqrt{11}

Again m + n = - 3    And m - n = \sqrt{11}

Solving this two equation

(m + n) + ( m - n) = - 3 + \sqrt{11}

I.e 2 m =  - 3 + \sqrt{11}

Or, m = \frac{-3}{2} + \frac{\sqrt{11} }{2}

Similarly n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}      

Hence the roots of  equations are as m =  \frac{-3}{2} + \frac{\sqrt{11} }{2}  And n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}      Answer

6 0
3 years ago
Someone pls Help me out!!!
Law Incorporation [45]

Answer:

Gasoline = 10.2 * 3.80= 38.76

Water= 3 * 3.98 = 11.94

Ice- 3 * 1.99 = 5.97

Oranges= 1 * 8.89 = 8.89

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Need help with this getting the answer for this question
mafiozo [28]

Answer:

x= 0.965

Step-by-step explanation:

the question if from trigonometry chapter

here with the formula I shared below

opposite/hypotenuse = sin( 16° )

opposite,x = sin( 16° )*3.5

0.965

4 0
2 years ago
What is the value of (−12)3? Question 1 options: 16 −16 18 −18<br>PLZ ANSWER ASAP
Lisa [10]

The value of (-12)3 is -36

5 0
3 years ago
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