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Simora [160]
4 years ago
11

What is the approximate surface area of the sphere?

Mathematics
2 answers:
Svetach [21]4 years ago
7 0
Calculating the Surface Area of a Sphere:
In plain english the surface area of a sphere can be calculated by squaring the radius, multiplying the result by PI, and finally multiplying by 4. You can approximated PI using: 3.14159.
Rainbow [258]4 years ago
4 0
In plain English the surface area can be calculated by squaring the radius multiplyIng the result be pi and finally multiplying by 4 once you've done these you should get your answer =
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NEED GEO HELP URGENT?
m_a_m_a [10]

Secant and tangent theorem: Square of measure of tangent is equal to the product of length of whole secant and length of exterior secant segment, i.e.

\text{ tangent }^2=\text{whole secant}\cdot \text{exterior secant}.

The whole secant wuth exterior secant 4 cm is 4+x cm. Tangent is 7 cm. Using previous theorem, you can get that

7^2=(4+x)\cdot 4.

Solve this equation:

49=16+4x,\\ 4x=49-16,\\ 4x=33,\\ x=8.25\approx 8.3 cm.

Answer: x=8.3 cm.

4 0
3 years ago
376 is the same as d decreased by 38
N76 [4]

answer: 376=d-38

this is becuase if you follow the words and turn them into symbols this is likely what you get

7 0
3 years ago
Read 2 more answers
A. ( x + 5)<br><br>B. ( x - 5 )<br><br>C. ( x + 3 )<br><br>D. ( x - 3 )
Blababa [14]

Answer:

(x + 5) B. (x - 5) C. (x + 3) D. (x - 3) = = 0

Step-by-step explanation:

The calculator performs basic and advanced operations with fractions, expressions with fractions combined with integers, decimals, and mixed numbers. It also shows detailed step-by-step information about the fraction calculation procedure. Solve problems with two, three, or more fractions and numbers in one expression.

Rules for expressions with fractions:

Fractions - use the slash “/” between the numerator and denominator, i.e., for five-hundredths, enter 5/100. If you are using mixed numbers, be sure to leave a single space between the whole and fraction part.

The slash separates the numerator (number above a fraction line) and denominator (number below).

Mixed numerals (mixed fractions or mixed numbers) write as non-zero integer separated by one space and fraction i.e., 1 2/3 (having the same sign). An example of a negative mixed fraction: -5 1/2.

Because slash is both signs for fraction line and division, we recommended use colon (:) as the operator of division fractions i.e., 1/2 : 3.

Decimals (decimal numbers) enter with a decimal point . and they are automatically converted to fractions - i.e. 1.45.

The colon : and slash / is the symbol of division. Can be used to divide mixed numbers 1 2/3 : 4 3/8 or can be used for write complex fractions i.e. 1/2 : 1/3.

An asterisk * or × is the symbol for multiplication.

Plus + is addition, minus sign - is subtraction and ()[] is mathematical parentheses.

The exponentiation/power symbol is ^ - for example: (7/8-4/5)^2 = (7/8-4/5)2

6 0
3 years ago
In BLU, E is the midpoint of BU and BL = LU. Which congruency statement shows BLE = ULE?
netineya [11]
The answer is:  [A]:  "SSA {"side-side-angle"} " .
___________________________________________________

7 0
3 years ago
Factor the following expression 20x+35y
UkoKoshka [18]

Answer:

it's <em>5</em><em>(</em><em>4</em><em>x</em><em>+</em><em>7</em><em>y</em><em>)</em>

Step-by-step explanation:

5×4x+5×7y

20x+35y

see simple:)

Hope it'll help!

6 0
3 years ago
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