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3 years ago

What is 26^4 +x)=65??

Mathematics

1 answer:

Lunna [17]3 years ago

4 0

I'm not sure if this is correct but here is the answer:

Exact form:

x=-3/2

decimal form:

x=-1.5

mixed number form:

x=-1 1/2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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The two spheres above have the same center. One has a radius of 4 cm, and the other has a radius of 5 cm. Approximately how much

frozen [14]

Volume a sphere: [4/3]π(r^3)

Space between the spheres = Volume of the larger sphere - Volume of the smaller sphere

= [4/3]π (R^3) - [4/3π](r^3) = [4/3]π(R^3 - r^3) = [4/3]π {(5cm)^3 - (4cm)^3} =

= 255.5 cm^3

Answer: 255.5 cm^3

8 0

3 years ago

You are trying to forecast coffee sales for the holiday season. You sold 1,500 cups of coffee during the holidays last year, but

Airida [17]

Hello there!

You expect to sell 100% - 20% = 80% of many coffee sales.

0.80 * 1500 = 1200

Your answer is 1200 cups of coffee.

Hope I helped!

Let me know if you need anything else!

~ Zoe

5 0

3 years ago

The perimeter of AABC is 30 feet AB = 5x - 7, BC = 3x + 1, AC = 4x. List the angles of AABC in order from smallest to largest

Monica [59]

What? Itjdocnwncie idodiwjdodjws

8 0

3 years ago

A cone-shaped paper drinking cup is to be made to hold 27 cm of water. Find the height h and radius r of the cup that will use t

andreyandreev [35.5K]

Answer:

r = 2.632 cm
h = 3.722 cm

Step-by-step explanation:

The formula for the volume of a cone of radius r and height h is ...

V = (1/3)πr²h

Then r² can be found in terms of h and V as ...

r² = 3V/(πh)

The lateral surface area of the cone is ...

A = (1/2)(2πr)√(r² +h²) = πr√(r² +h²)

The square of the area is ...

T = A² = π²r²(r² +h²)

Substituting for r² using the expression above, we have ...

T = π²(3V/(πh))((3V/(πh) +h²) = 9V²/h² +3πVh

We want to find the minimum, which we can do by setting the derivative to zero.

dT/dh = -18V²/h³ +3πV

This will be zero when ...

3πV = 18V²/h³

h³ = 6V/π . . . . . multiply by h³/(3πV)

For V = 27 cm³, the value of h that minimizes paper area is ...

h = 3∛(6/π) ≈ 3.7221029

The corresponding value of r is ...

r = √(3V/(πh)) = 9/√(π·h) ≈ 2.6319242

The optimal radius is 2.632 cm; the optimal height is 3.722 cm.

_____

The second derivative test applied to T finds that T is always concave upward, so the value we found is a minimum.

Interestingly, the ratio of h to r is √2.

8 0

3 years ago

A bracelet that regulaurly sells for $44 is on sale for 25% off. Find the sale price of the bracelet.

Alchen [17]

Since it is on sale of 25% then it is 25% off. So minus 100% by 25% which is 75%
Then u find 75% of 44 the. Then answer you get it is the final answer.

8 0

3 years ago