What is the radius and center of (y-7)^2=25-(x-3)^2

The area of the curved surface of a cylinder is 6160cm. The height of the cylinder is 10cm. What is the radius of the cylinder i

valina [46]

Answer:

r = 98 cm

Step-by-step explanation:

Formula for curved surface area = $2\pi rh$

where r = radius & h = height

Let the radius be 'r'.

According to the question ,

$6160 = 2 \times \pi \times r \times 10$

$= > 20\pi r = 6160$

$= > r = \frac{6160}{20\pi} = \frac{6160 \times 7}{20 \times 22} = 98cm$

3 0

3 years ago

Lockheed Martin, the defense contractor designs and build communication satellite systems to be used by the U.S. military. Becau

Nana76 [90]

Answer:

$P(52$

And we can find this probability with this difference:

$P(-0.851$

And if we use the normal standard distribution or excel we got:

$P(-0.851$

Step-by-step explanation:

Let X the random variable that represent the time required to construct and test a particular component of a population, and for this case we know the distribution for X is given by:

$X \sim N(60,9.4)$

Where $\mu=60$ and $\sigma=9.4$

We want to find this probability:

$P(52$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

Using this formula we got:

$P(52$

And we can find this probability with this difference:

$P(-0.851$

And if we use the normal standard distribution or excel we got:

$P(-0.851$

5 0

3 years ago

Which image shows trapezoid A being translated to create trapezoid B?

Shalnov [3]

Answer:

image w.

Step-by-step explanation:

6 0

4 years ago

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Plss help i’ll give brainliest thank you!

iogann1982 [59]

Answer:

D

Step-by-step explanation:

As,

-10 is always greater than -13

Hence, -13 < -10

4 0

3 years ago

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Jerald jumped from a bungee tower. If the equation that models his height, in feet, is h = –16t2 + 729, where t is the time in s

Snezhnost [94]

Answer. First option: t > 6.25

Solution:

Height (in feet): h=-16t^2+729

For which interval of time is h less than 104 feet above the ground?

h < 104

Replacing h for -16t^2+729

-16t^2+729 < 104

Solving for h: Subtracting 729 both sides of the inequality:

-16t^2+729-729 < 104-729

-16t^2 < -625

Multiplying the inequality by -1:

(-1)(-16t^2 < -625)

16t^2 > 625

Dividing both sides of the inequality by 16:

16t^2/16 > 625/16

t^2 > 39.0625

Replacing t^2 by [ Absolute value (t) ]^2:

[ Absolute value (t) ]^2 > 39.0625

Square root both sides of the inequality:

sqrt { [ Absolute value (t) ]^2 } > sqrt (39.0625)

Absolute value (t) > 6.25

t < -6.25 or t > 6.25, but t can not be negative, then the solution is:

t > 6.25

5 0

4 years ago

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