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RoseWind [281]
2 years ago
8

GuYS PLEASE HELP I WILL MARK AS BRAINIEST IF YOU EXPLAIN WELL. ANYWAYS, SOLVE EACH EQUATION BY FACTORING. R^2+9R+8=0 SO MY QUEST

ION IS HOW DO I DO THIS PLEASE HELP
Mathematics
2 answers:
stich3 [128]2 years ago
7 0

I will try my best to assist you with your problem.

We need to factor the equation,  so you must start by note that leading coefficient is 1 so factor would looks like (R + ?)(R + ?) = 0 because 1*1 = 1


And we know that 1*8 = 8 and 1 + 8 = 9 so then we have (R + 8)(R + 1)=0


Now we can split factors into two equations: either R+8 = 0 R+1 = 0.


Solve both equation and we get R = -8 or R = -1

Hope I helped!

Good Luck!

⛈



Read more on Brainly.com - brainly.com/question/1400054#readmore

castortr0y [4]2 years ago
4 0
<span>To factor the equation, you can start by note that leading coefficient is 1 so factor would looks like (R + ?)(R + ?) = 0 because 1*1 = 1

And we know that 1*8 = 8 and 1 + 8 = 9 so then we have (R + 8)(R + 1)=0

Now we can split factors into two equations: R+8 = 0 or R+1 = 0.

Solve both equation and we get R = -8 or R = -1</span>
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the axis of symmetry for a function in the form f(x)=x^2+4x-5 is x=-2. what are the coordinates of the vertex of the graph?
Alenkasestr [34]
Hello : 
<span>f(x)=x²+4x-5
</span><span>The axis of symmetry for a function in the form f(x)=x^2+4x-5 is x=-2 :
</span>f(x) = (x+2)² + b 
f(x) x²+4x+4+b=  x² +4x-5 
 4+b= -5 
b = -9
the vertex is : (2 , -9)
4 0
3 years ago
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which numbers are irrational? check all that apply. square root of 196, square root of 80, square root of 16, pi, square root of
Vilka [71]

Answer: \sqrt{80}, \pi, \sqrt{12}

Step-by-step explanation:

these are all irrational! hope this helped you :3.

7 0
3 years ago
Find an equation of the line that goes through the points (7,-42) and (10,-57). Write your answer in the form
tatuchka [14]
Y=-5x-7. I'm almost certain but you never know
3 0
2 years ago
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3q+4+9=-14 <br> what is Q
BlackZzzverrR [31]

Hi! Your answer is q = -9

Please see an explanation for a better and clear understanding to your problem.

Any questions about my answer and explanation can be asked through comments! :)

Step-by-step explanation:

Since we want to solve for q-term. That means we are going to isolate q-term.

\huge{3q+4+9=-14}

We can add 4 and 9 together.

\huge{3q+13=-14}

Because we want to know the value of q. That means we have to isolate q-term by subtracting both sides by 13.

\huge{3q+13-13=-14-13}\\\huge{3q=-27}

We are reaching to the final step where we divide the whole equation by 3.

\huge{\frac{3q}{3}=-\frac{27}{3}}\\\huge{q=-9}

Finally, the solution for this equation is q = -9. But what if you are not certain or sure about the answer? Let's check it out!

To check the answer, simply substitute q = -9 in the equation.

\huge{3q+4+9=-14}\\\huge{3(-9)+13=-14}\\\huge{-27+13=-14}\\\huge{-14=-14}

Notice that the equation is true for q = -9. Hence, we can conclude that the solution for this equation is q = -9.

Hope this helps!

5 0
3 years ago
What is the 82nd term of the sequence below?
AlexFokin [52]
The rule to find the term is: y=225-4x
you want to know the 82nd term which occurs when x=82 therefore
y = 225-(4 x 82) = -103


82nd term = -103
4 0
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