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Sunny_sXe [5.5K]
3 years ago
6

What are the solution of a quadratic equation 49x^2 = 9​

Mathematics
1 answer:
kozerog [31]3 years ago
3 0

Answer:

x = ±3/7

Step-by-step explanation:

49 x^2 = 9

Divide each side by 49

49/49  x^2 = 9/49

x^2 = 9/49

Take the square root of each side

sqrt(x^2) = ±sqrt(9/49)

We know  sqrt(a/b) =sqrt(a)/sqrt(b)

x = ±sqrt(9)/ sqrt(49)

x = ±3/7

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A rectangular garden has a perimeter of 36 yards and a width of 8 yards.
xeze [42]

Answer:

80 square yards

Step-by-step explanation:

We know we have a width of 8 yards and a perimeter of 36.

how I figured it out was:

36=(8*2) * (x*2)

8*2=16

36-16=10

So now we know the length and width.

area of a rectangle is lw (length * width)

10*8=80.

8 0
3 years ago
True or False. When finding the Least Common Multiple of two denominators, that becomes your Least Common Denominator.
shepuryov [24]
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2 years ago
What is the equation of the circle with center (16, - 12) and a radius of 5
eimsori [14]

Answer:

x^2+y^2-32x+24y+375=0

Step-by-step explanation:

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Given centre are=(16, - 12) and radius= 5

So equation of circle=

(x-16)^2+(y- -12)^2=5^2

x^2-32x+256+y^2+24y+144=25

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Answer

5 0
2 years ago
Solve For d.<br> d+ 4 = 16.21<br> d=12.21
pshichka [43]

This comes from subtracting 4 from both sides.

4 0
1 year ago
6x + 14 = 20<br> Show your work <br> Solve the equation
DIA [1.3K]

Answer:

X = 1

Step-by-step explanation:

subtract 14 from both sides

6x = 6

divide both sides by 7

X = 1

5 0
2 years ago
Read 2 more answers
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