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3 years ago

Find the surface area of a sphere with a diameter of 34.

Mathematics

1 answer:

My name is Ann [436]3 years ago

6 0

Answer:

A = 213.52

Step-by-step explanation:

A = 4 pi radius square

diameter = 34

radius is half of diameter

radius = 17

A = 4(pi or 3.14)(17)

A= 213. 628300444 with pi

A = 213.52 with 3.14

hopefully this helps you understand this concept

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Subtract -6x^4-3x^2y^2+5y^4−6x

Gnoma [55]

Answer:

$8x^4-5x^2y^2-6y^4+6x$

Step-by-step explanation:

We are required to subtract $-6x^4-3x^2y^2+5y^4-6x \:from \: 2x^4-8x^2y^2-y^4$ .

$[2x^4-8x^2y^2-y^4]-[-6x^4-3x^2y^2+5y^4-6x]$

Step 1: Open the bracket, Take note of the signs

$[2x^4-8x^2y^2-y^4]-[-6x^4-3x^2y^2+5y^4-6x]\\2x^4-8x^2y^2-y^4+6x^4+3x^2y^2-5y^4+6x$

Step 2: Collect like terms

$2x^4+6x^4-8x^2y^2+3x^2y^2-y^4-5y^4+6x$

Step 3: Simplify

$8x^4-5x^2y^2-6y^4+6x$

5 0

3 years ago

A recipe calls for 1 1/2 cups of sugar. Alexis only has measuring cups that measuring cups that measure 1/4 cup. how many times

marishachu [46]

Change 1 1/2 into improper faction

1 1/2 = 3/2

Change 3/2 to quarters

3/2 = 6/4

1 measure cups = 1/4 cup

To get 6/4 cups 
6/4 ÷ 1/4 = 6/4 x 4/1 = 6

He needs to fill in 6 times

3 0

3 years ago

A man bought an article for Rs 225 and sold it at a gain of 15%. how much was his profit?

tensa zangetsu [6.8K]

Answer:

225 x 0.15 = 33.75 profit

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Help pls thank you.............

Elenna [48]

Answer:

15\lb of course

Step-by-step explanation:

all u do is subtract the rate of change an youll get your answer

3 0

3 years ago

Read 2 more answers

Consider the equation 5y = 2x +4. Select all the equations that are perpendicular to the given equation.

allsm [11]

Answer:

see the explanation

Step-by-step explanation:

we have

$5y=2x+4$

Solve for y

$y=\frac{2}{5}x+\frac{4}{5}$

This is the equation of the line in slope intercept form

The slope m of the given equation is

$m=\frac{2}{5}$

we know that

If two lines are perpendicular,, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

Find the slope of the line perpendicular to the given line

$m1*m2=-1$

we have

$m1=\frac{2}{5}$

substitute

$(\frac{2}{5})*m2=-1$

$m2=-\frac{5}{2}=-2.5$

therefore

All equations of the line having as slope $m=-2.5$ will be perpendicular to the given line.

8 0

3 years ago