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Tpy6a [65]
2 years ago
10

How many solutions are there to the equation below?9x - 16 = 9x - 23

Mathematics
2 answers:
barxatty [35]2 years ago
8 0
Zero.
9x-16=9x-23
9x-9x-16=-23
0-16=-23
-16=-23
The equation is invalid, so there is no solution for this equation
Stella [2.4K]2 years ago
7 0

Answer:

0 solutions are there  to the given equation

Step-by-step explanation:

Given the equation:

9x-16 = 9x -23

Subtract 9x from both sides, we have;

9x-16-9x = 9x -23-9x

Simplify:

-16 =-23

Divide both sides by -1 we have;

16 =23          False.

⇒ there is no solution for the given equations.

Therefore. 0 solutions are there to the given equation.

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The area of a square shaped yard is 201.5 ft2. Which measurement is closest to the side length of this yard in feet?
Aleonysh [2.5K]

Answer:

a = 14.19 feet

Step-by-step explanation:

Given that,

The area of a square shaped yard is 201.5 ft²

We need to find the side length of this yard in feet.

The area of a square shaped object is given by :

A = a², a is the side length of the object

Put A = 201.5 ft² in above formula,

201.5=a^2\\\\a=\sqrt{201.5 } \\\\a=14.19\ \text{feet}

So, the side of the square yard is 14.19 feet.

8 0
3 years ago
You have 42,784 grams of a radioactive kind of curium. If its half-life is 18 years, how much will be left after 72 years?
s344n2d4d5 [400]

Answer:

2,674.14 g

Step-by-step explanation:

Recall that the formula for radioactive decay is

N = N₀ e^(-λt)

where,

N is the amount left at time t

N₀ is the initial amount when t=0, (given as 42,784 g)

λ = coefficient of radioactive decay

  = 0.693 ÷ Half Life

  = 0.693 ÷ 18

  = 0.0385

t = time elapsed (given as 72 years)

e = exponential constant ( approx 2.7183)

If we substitute these into our equation:

N = N₀ e^(-λt)

= (42,787) (2.7183)^[(-0.0385)(72)]

= (42,787) (2.7183)^(-2.7726)

=  (42,787) (0.0625)

= 2,674.14 g

6 0
3 years ago
Point M is located at (-4,-6).
xz_007 [3.2K]

Answer:

the x axis I belive

Step-by-step explanation:

4 0
2 years ago
Help on this please i need help so much
attashe74 [19]
The correct answer for each is
a= 390.8
b= 136.8
7 0
3 years ago
Read 2 more answers
Write the answer with the correct number of significant digits. Don't use any commas in your answer. Only use a
lawyer [7]
386 x 21 = 8.106

I hope you got a good grade on your assignment!!! :D
3 0
2 years ago
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