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Elden [556K]
3 years ago
8

Solve the equation. Check your solution. x^2+9=0

Mathematics
1 answer:
Reika [66]3 years ago
6 0

Answer:

no solution

Step-by-step explanation:

radicals can't be negative

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PLZ HELP ME <br> I appreciate any help, especially if you can show me how you got the answer
Arte-miy333 [17]

Answer:

C

Step-by-step explanation:

Since this is an indererminate form, use L'Hopital

d(sint)/dt = cos(t)

d[ln(2e^t) - 1] = (2e^t)/[2e^t - 1]

As t --> 0,

cos(0) = 1

(2e^t)/[2e^t - 1] = 2

1/2 is the limit

5 0
4 years ago
What is the total cost of an item that cost $43 when you add the sales tax (.0825)?
LuckyWell [14K]

Answer:

43.0825

Step-by-step explanation:

I don't know if the tax is percentage or just adding

7 0
3 years ago
Help me plz I need help
charle [14.2K]

Answer:

-0.48

Step-by-step explanation:

(-1.2)(0.4)

= - 0.48

5 0
3 years ago
There are 60 minutes in an hour. The total number of minutes is a function of the number of hours, as shown in the table. Does t
Alexxx [7]

Answer:

Step-by-step explanation:

It represents a linear function because there is a constant rate of change.

Step-by-step explanation:

Since, if the rate of change for y ( output value ) with respect to x ( input value ) remains constant for a function then it is called linear function.

Here, number of hours represents input value and minutes represents the output value,

Now, By the given table,

The function is passing through the points (1,60), (2,120), (3,180), (4,240) and (5,300),

Also,

⇒  The rate of change output value with respect to input value remains constant,

Hence, It represents a linear function because there is a constant rate of change.

3 0
2 years ago
How do u solve to get x?
Vedmedyk [2.9K]

Step-by-step explanation:

2^(2x) - 5(2^x) = -4

(2^x)^2 - 5(2^x) = -4

Substitute 2^x = z --> x = ln(z)/ln(2)

z^2 - 5z = -4

z^2 - 5z + 4 = 0

(z - 1)(z - 4) = 0

z = 1 --> x = ln(1)/ln(2) = 0

z = 4 --> x = ln(4)/ln(2) = 2


4 0
3 years ago
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