All categories

3 years ago

Find the surface area of the sphere.

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

7 0

The answer would be .... d hoped i helped

You might be interested in

Quadratic formula. pls help

crimeas [40]

Answer:

$x=-1,\frac{5}{7}$

Step-by-step explanation:

1) Split the second term in $7{x}^{2}+2x-5$ into two terms.

1 - Multiply the coefficient of the first term by the constant term.

$7\times -5=-35$

2 - Ask: Which two numbers add up to 2 and multiply to -35?

7 and -5.

3 - Split 2x as the sum of 7x and -5x.

$7x^2+7x-5x-5$

2) Factor out common terms in the first two terms, then in the last two terms.

$7x(x+1)-5(x+1)=0$

3) Factor out the common term x+1.

$(x+1)(7x-5)=0$

4) Solve for x.

1 - Ask: When will (x+1)(7x-5) equal zero?

When x + 1 0 or 7x-5=0

2 - Solve each of the 2 equations above.

$x=-1,\frac{5}{7}$

8 0

2 years ago

Read 2 more answers

Arrange the cones in order from least volume to greatest volume. a cone with a diameter of 20 units and a height of 12 units a c

Gekata [30.6K]

Answer:

Step-by-step explanation:

The volume of a cone can be found with the following equation:

$V = \frac{\pi r^{2}h}{3}$

where $r$ is the radius of the base and $h$ is the height of the cone.

For the cone with diameter of 20 units and height of 12 units, the volume is the following:

$V = \frac{\pi(10)^{2}(12)}{3}$

$V = \frac{1200\pi}{3}$

$V = 400\pi$

For the cone with diameter of 18 units and height of 10 units, the volume is the following:

$V = \frac{\pi(9)^{2}(10)}{3}$

$V = \frac{810\pi}{3}$

$V = 270\pi$

For the cone with diameter of 20 units and height of 12 units, the volume is the following:

$V = \frac{\pi(10)^{2}(9)}{3}$

$V = \frac{900\pi}{3}$

$V = 300\pi$

5 0

3 years ago

Which represents a proportional relationship between y and x

alekssr [168]

Answer:

A proportional relationship between a quantity y and a quantity x that has a constant of proportionality k is represented by the equation y = kx.

Step-by-step explanation:

3 0

2 years ago

If there are 48 fish and half of them drown, how many of them are left? My teacher said that this was a hard question, so it's w

Elenna [48]

There would be 24 fish left because 48/2 = 24

7 0

3 years ago

Read 2 more answers

Triangle QRS is similar to triangle TUV. Write the equation, in slope-intercept form, of the side of triangle QRS that is parall

trasher [3.6K]

Answer:

The equation of the side of triangle QRS that is parallel to segment UV is:

y = x + 9

Step-by-step explanation:

I attached a pic with the procedure to find the answer. Hope it helps, good luck!

6 0

3 years ago