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2 years ago

What is the solution to this equation? 9^x – 1 = 2 A. 1 B. 2 C. -1/2 D. 1/2

Mathematics

2 answers:

choli [55]2 years ago

7 0

Answer:

Step-by-step explanation:

sukhopar [10]2 years ago

6 0

The answer is B for 9^x-1 =2

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Find the equation of the line.

ki77a [65]

Hello,

2 points of the line: (2,0) and (0,3)

$\Delta\ y=3-0=3\\\Delta\ x=0-2=-2\\\dfrac{\Delta\ y}{\Delta\ x} =\dfrac{-3}{2} \\\\y-0=\dfrac{-3}{2}*(x-2)\\\\\boxed{y=-\dfrac{3x}{2}+3}\\$

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2 years ago

A tank with capacity T gallons is empty. If water flows into the tank from pipe X at the rate of X gallons per minute, and water

Andrej [43]

A tank with capacity T gallons is empty. Tank will be filled in $\frac{t}{(x - y)}$ minutes

<u>Solution:</u>

Given, A tank with capacity T gallons is empty.

We have to find how many minutes will tank be filled?

Now, Water flows into the tank from pipe X at the rate of X gallons per minute,

And water is pumped out by pipe Y at the rate Y gallons per minute,

Then, together in one minute the amount of water filled will be x – y gallons [as X is greater than Y]

Now, the time take to fill tank = $=\frac{\text { capacity of tank }}{\text { amount of water filled per minute }}=\frac{t}{x-y}$

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2 years ago

1) Which relation is a function?

jasenka [17]

Answer:

Step-by-step explanation:

x = y-4x^2 can be rearranged to get y = 4x^2 + x, which is a function

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1 year ago

Answer and explanation plz ???

Nutka1998 [239]

Answer:

Step-by-step explanation:

Formula

2xy + 1

Givens

x = 3

y = 4

Solve

2*(3)*(4) + 1

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2 years ago

What is the equation of a line that is parallel to the line x=-2and passes through the point (-5, 4)?

Nimfa-mama [501]

First, it is important to understand that any equation that is x=some number is just a vertical line that hits the x-axis at the given number. For example, x=-2 would be a vertical line hitting the x-axis at -2. Therefore, the line we are trying to identify would also be vertical (and have the form x=some number) because we know the lines are parallel. Then, since we're given the point (-5,4), we know the line needs to hit the x-axis at -5, therefore the equation would be x=-5.

I hope this helps.

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2 years ago

What is the solution to this equation? 9^x – 1 = 2 A. 1 B. 2 C. -1/2 D. 1/2​

What is the solution to this equation? 9^x – 1 = 2 A. 1 B. 2 C. -1/2 D. 1/2