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LekaFEV [45]
2 years ago
5

The Surface Area of a sphere is 36π cm2. Find its diameter.

Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
6 0

Answer:

6 cm

Step-by-step explanation:

A = 4πr^2

4πr^2 = 36π cm^2

r^2 = 9 cm^2

r = 3 cm

d = 2r = 6 cm

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relay race is 1 4 mile long and is run by 4-member teams. If each team member runs the same distance, what fraction of a mile do
sergejj [24]

Answer:

7/20

Step-by-step explanation:

I did the work but Im not sure if this is right i just need points to ask my question. But what i did was i did 14 divided by 4=3.5, then moved the decimal in front of the 3 to make .35 then turned that into a fraction 7/20. AGAIN I DONT KNOW IF ITS RIGHT DONT BLAME ME IF ITS NOT

8 0
2 years ago
For 3x2 - 4x+ 1, match the following:
Usimov [2.4K]

Constant: 1

Degree: 2

Coefficient : 3 and -4

Algebraic expression: 3x^2-4x + 1

Variable : x

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

3x^2-4x + 1

We have to find the constant, degree, coefficient , algebraic expression and varibale

<h3><u>Constant:</u></h3>

In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number like 1, 2

In the given expression, constant is 1

<h3><u>Degree:</u></h3>

The largest exponent the variable has in a polynomial with one variable

In the given expression, largest exponent is 2

Thus degree of polynomial is 2

<h3><u>Coefficient:</u></h3>

The coefficients are the numbers that multiply the variables or letters

In 3x^2-4x + 1 , coefficients are 3 and -4

<h3><u>Algebraic expression:</u></h3>

An algebraic expression is a mathematical expression that consists of variables, numbers and operations.

Here the algebraic expression is:

3x^2-4x + 1

<h3><u>Variable:</u></h3>

The letters x, y, and z are common generic symbols used for variables.

Thus the variable in given expression is x

3 0
2 years ago
Marsha gave the cashier $20 to pay for 3 pairs of socks. The cashier gave her $5.03 in change. Each pair of socks cost the same
allochka39001 [22]

Answer:

$4.99

Step-by-step explanation:

If she pays with $20 and recieves $5.03 in change, her total cost was 20 - 5.03 or $14.97. If each pair of socks is the same amount, 14.97 / 3 will give you the amount per each pair. 14.97 / 3 = $4.99

7 0
2 years ago
Read 2 more answers
177*((177+(9-4+7)) +90/8=
larisa86 [58]

Answer:

33464.25

Step-by-step explanation:

Using BODMAS : brackets, division, multiplication, addition

177\times ((177+(9-4+7)) +\frac{90}{8}\\\\177\times (177+12) +\frac{90}{8}\\\\177\times 189 +\frac{90}{8}\\\\\\177 \times 189 + 11.25\\\\33453 + 11.25\\\\33464.25

3 0
2 years ago
Prove that x+1 is a factor of x^n+1 where n is an odd positive integer.​
egoroff_w [7]

Answer:

because x^n+1 =

the number which is n and n is an odd number and my odd number is 3 so

x^3+1= 4

= x^4

7 0
3 years ago
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