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ch4aika [34]
3 years ago
9

Need help with theses questions please

Mathematics
1 answer:
Olin [163]3 years ago
7 0
Hello:
3x²+5x+2=0
delta = (5)²-4(3)(2)=1
x =( -5 <span>±1)/6
x= -2/3 or x=-1

t4-81=(t²)² -9² = (t²-9)(t²+9) =(t-3)(t+3)(t²+9)....(answer B)</span>
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AnnyKZ [126]
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3 years ago
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If x is an even integer and y is an odd integer than x + y is a rational number. A) Always True B) Sometimes True C) Usually Tru
Katyanochek1 [597]
A) Always TRue
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7 0
3 years ago
Consider these dimensions for a cylindrical aquarium.
vagabundo [1.1K]

The amount of water that will fill the tank is 11100 cu.ft to the nearest hundredth.

<h3>What is a Cylindrical figure ?</h3>

A cylinder is a three dimensional figure with two identical circular faces at each end , and a curved surface.

It does not have an edges or vertices.

It is given in the question that

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The water than can be filled is equal to the volume of the cylinder

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There  the amount of water that will fill the tank is 11100 cu.ft to the nearest hundredth.

To know more about Cylindrical Figure

brainly.com/question/10369419

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6 0
2 years ago
Find the least number must be added to 4015 to make it a perfect square. also,find the square root of the perfect square so obta
Vladimir [108]

To solve this, I used guess and check.

I started by finding 60²=3600 and 70²=4900. 70² is too much, so I then did 65²=4,225.

After 65², I did 62²=3,844. I knew that was pretty close, so I did 64. 64²=4,096 and 63²=3,969. So, 64² was it.

4,096-4015=81

So, you would need to add 81 to 4015 in order to receive a perfect square, which is 64²(4,096).

7 0
3 years ago
Solve the equation: x^2 - 6x = 7 <br><br> A. x = 7 , 1<br> B. x = -7 , 1<br> C. x = 7 , -1
Alex777 [14]
<span>x^2 - 6x = 7
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The answer is: x = 7, -1.</span>
6 0
3 years ago
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