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lord [1]
3 years ago
6

Someone help me with this algebra question please 100% correct only

Mathematics
1 answer:
STALIN [3.7K]3 years ago
7 0
Let x represent the width. Since the length is 3 more than 4 times the width, that would be equal to 3+4x. The perimeter is the sum of all sides, so that would be x+x+3+4x+3+4=86. Combine like terms, which would result in 10x+6=86. Subtract 6 from both sides giving you 10x=80. Divide by 10 giving you x=8. That means that the width is 8. The length is 3+4x. Substitute 8 for x giving you 3+4(8). Multiply, giving you 3+32, then add, which would give you 35.  35 is the length. 
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Liono4ka [1.6K]
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4 0
3 years ago
A parabola has a line of symmetry x = -5. The minimum value of the quadratic function that it represents is -7. Find a possible
Ilya [14]

 

hello :<span>
<span>the parabola's equation is : f(x) = a(x-h)²+k
the verex is (h,k)
</span></span><span>line of symmetry x = h
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6 0
3 years ago
(5x²-4x-1)+(2x²-3x+6) simplified
Lady bird [3.3K]
Answer: 7x² - 7x + 5
3 0
2 years ago
Is my solution correct?
nlexa [21]

Hello there!

Yes, your solution is correct! A way to check it is replacing the value you found for x into x in the equation.

3(2-x) = 7 - 4x ⇒ 3(2-1) = 7 - 4(1)

And now solve  3(2-1) = 7 - 4(1).

3(1) = 7 - 4(1)

3 = 7 - 4

3 = 3

Since it is a true statement that 3 is equal to 3, it means your solution of x = 1 is correct. Good job! :)

8 0
3 years ago
Read 2 more answers
jenna brought a spool of ribbon that was 5 3/4 meters long. she used 3 1/4 meters of ribbon for a craft project. how many meters
sp2606 [1]

Answer:

So the answer will be 2 2/4

Step-by-step explanation:

If you need me to explain more please tell me.Hope it helps.

8 0
3 years ago
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