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sergij07 [2.7K]
3 years ago
5

Please solve this quadratic equation:9^x-1 = 27^X-1​

Mathematics
1 answer:
nadezda [96]3 years ago
5 0

Answer:

x=1

Step-by-step explanation:

if it is truly 9^(x-1)=27^(x-1), then you dont really need to use the quadratic fromula.

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Find the missing side length.
andrew11 [14]
So first of all you know that one side is 14cm and the other side is 6cm

What you would do is: 14-6=???







Your answer should be: 8cm
5 0
3 years ago
a sphere of radius 5 cm is melted down and made into a solid cube. Find the length of a side of the cube.​
Amanda [17]

Answer:

the volume of sphere will be equal to that of the volume of cube as change in shape doesn't effect the volume.

using,

Volume of sphere = volume of cube.

= a^3

Step-by-step explanation:

5 0
3 years ago
Anyone got answers to this? Need help asap it’s due tomorrow!!
umka2103 [35]

The figure on the left side shows the water level is at the 0.5 liter mark, ie half a liter.

1 liter = 1000 mL

0.5*1 liter = 0.5*1000 mL

0.5 liter = 500 mL

If you poured all the water into the jug on the right (without spilling), then the water level should reach the 500 mL mark. This is the small tickmark exactly halfway between the 400 and 600.

5 0
3 years ago
You roll a 4-sided die repeatedly. On your odd-numbered rolls (1st,3rd,5th, etc.) you are victorious if you get a 4. On your eve
Sunny_sXe [5.5K]

Answer:

E (Y) = 3

Step-by-step explanation:

If a 4-sided die is being rolled repeatedly; and the odd-numbered rolls (1st 3rd,5th, etc.)

The probability of odd number roll will be, p(T) = \frac{1}{2}

However, on your even-numbered rolls, you are victorious if you get a 3 or 4. Also, the  probability of even number roll, p(U) = \frac{1}{2}

In order to  calculate: E (Y); We can say Y to be the number of times you roll.

We know that;

E (Y) = E ( Y|T ) p(T) + E ( Y|U ) p(U)

Let us calculate E ( Y|T ) and E ( Y|U )

Y|T ≅ geometric = \frac{1}{4}

Y|U ≅ geometric = \frac{1}{2}

also; x ≅ geometric (p)

∴ E (x) = \frac{1}{p}

⇒ \frac{Y}{T} = 4 ; also \frac{Y}{U} = 2

E (Y) = 4 × \frac{1}{2} + 2 ×

        = 2+1

E (Y) = 3

7 0
3 years ago
Vanita began her trip to Washington, D.C. on a full tank of gas. Her odometer read 54,250. When she arrived in Washington, her o
mafiozo [28]
The solution to the problem is as follows:

To Washington DC, she travelled a total of 54538 - 54250 = 288 miles.

Therefore, 288 miles / 9 gal = 32 miles/gal.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!


6 0
3 years ago
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