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Finger [1]
3 years ago
6

Find the surface area of a sphere with a radius of 0.8 ft

Mathematics
1 answer:
dexar [7]3 years ago
4 0
Sphere Surface Area     =    <span> 4 • <span>π <span>• r²
</span></span></span><span>Sphere Surface Area     = 4 * PI * .8^2
</span>Sphere Surface Area     = <span> <span> <span> 8.0424771932 square feet
 </span></span></span>

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Rewrite the expression as a product of two factors. 72t+8
Aneli [31]

Step-by-step explanation:

The above given expression "72t+8 " have to be factorized by the following methods.

<u>Step 1 : </u>

First we must check both numbers in order to obtain common factor for both ,for this equation "8" is the common factor for both .

<u>Step 2:</u>

After obtaining the common factor for the equation equation, we must now take the factor as common outside the bracket and form  the equation as follows,

 ⇒ 8 * ( 9*t + 1 )

     Here there are the two factors for the equation " 72 t+ 8 " that are <u>8 </u>and  <u>9t+1.</u>

<u>Step 3 (optional) : </u>

Now check weather the factors are correct or not by multiplying factors with each other.

Multiplying ,

 ⇒ 8 * ( 9*t + 1 )

Gives -

⇒  72 t+ 8

5 0
4 years ago
Solve for x.<br> *x+3x+4=3+3
Bingel [31]

Answer:

x+3x+4=3+3  →  x=\frac{1}{2}

Step-by-step explanation:

x+3x+4=3+3

4x+4=6

4x=2

x=\frac{1}{2}

7 0
3 years ago
Which term describes a function in which the y-values form a geometric sequence? A. Exponential function B. Linear function C. L
ankoles [38]
The answer for the exercise shown above is the first option, the option A, which is shown below: A. Exponential function.
 In a geometric sequence, the ratio of any two consecutive numbers that form the sequence is equal. In other words, they have common ratio. 
7 0
3 years ago
Blood is a buffer solution. When carbon dioxide is absorbed into the bloodstream, it produces carbonic acid and lowers the pH. T
Irina18 [472]

Answer:

x ≅ 20.10 torr

Step-by-step explanation:

Given that the equation which models blood pH in the question is;

pH(x)=6.1+log(800/x)

where;

pH = 7.7

x = partial pressure of carbon dioxide in arterial blood, measured in torr.

we are asked to find (x)

In order to do that, we use the given equation:

pH(x)=6.1+log(800/x)

since pH = 7.7

7.7 = 6.1 + log (800/x)

7.7 - 6.1 =  log (800/x)

1.6 =  log (800/x)

10^{1.6}= \frac{800}{x}

x= \frac{800}{10^{1.6}}

x = 20.09509145

x ≅ 20.10 torr

4 0
3 years ago
I NEED HELP WITH THIS PLEASEEE!!!!!
Galina-37 [17]
Answers:
The area for the square on the left is 81m^2. This is found because all sides of this square are the same, so the length and width are the same. Just multiply 9 x 9.

The area for the triangle is 31.5m^2. We find the left side is 9 meters because the triangle shares the same side as the square on the left side. We also find the bottom side is 7 because that is the length of each side of that square because all sides on a square is the same. We then multiply 9 times 7, getting 63, we divide this by 2 because it’s a triangle.

The square on the right has the area of 225 because both length and width is 15.

4 0
3 years ago
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