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4 years ago

He diameter of a sphere is

Mathematics

1 answer:

suter [353]4 years ago

7 0

Answer: me

Step-by-step explanation:

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Lorenzo's bean plant grew 6/10 of an inch everyday. How tall was the plant after 7 days?

4vir4ik [10]

6/10 of an inch= 0.6
7 (times) 0.6 (equals) 4.2

8 0

3 years ago

Read 2 more answers

To aid in sea navigation, Little Gull Island Lighthouse shines a light from a height of 91 feet above sea level with an unknown

algol13

Answer:

$\approx 6^\circ$

Step-by-step explanation:

Given that:

Little Gull Island Lighthouse shines a light from a height of 91 feet above the sea level.

The angle of depression is unknown.

Distance of the point at sea surface from the base of lighthouse is 865 ft.

This situation can be modeled or can be represented as the figure attached in the answer area.

The situation can be represented by a right angled $\triangle ABC$ in which we are given the base and the height of the triangle.

And we have to find the value of $\angle BAD \ or \ \angle C$ (Because they are the internal vertically opposite angles).

Using tangent ratio:

$tan\theta = \dfrac{Perpendicular}{Base}$

$tanC = \dfrac{AC}{BC}\\\Rightarrow tanC = \dfrac{91}{865}\\\Rightarrow tanC = 0.105\\\Rightarrow \angle C \approx 6^\circ$

Therefore, the angle of depression is: $\approx 6^\circ$

7 0

3 years ago

To estimate the average annual expenses of students on books and class materials a sample of size 36 is taken. the sample mean i

Rzqust [24]

The 99 percent confidence interval for the population mean is found from:
$\bar{x}-2.576\frac{s}{ \sqrt{n} }\ \textless \ \mu\ \textless \ \bar{x}+2.576\frac{s}{ \sqrt{n} }$
$850-2.576\frac{54}{ \sqrt{36} }\ \textless \ \mu\ \textless \ 850+2.576\frac{54}{ \sqrt{36} }$
The answer is:
$826.82\ \textless \ \mu\ \textless \ 873.18$

3 0

3 years ago

Will give brainiest answer, I need step-by-step answer

Korvikt [17]

Answer: Choice A

The volume expression is 4/3 times pi times (3x)^3

===================================================

The volume of a sphere is found through the formula

V = (4/3)*pi*r^3

so we start with the fraction 4/3, multiply it with pi, and then multiply it with r^3

In this case, the radius is r = 3x because this is half of the diameter d = 6x

We simply replace the r with 3x in that formula above

V = (4/3)*pi*r^3

V = (4/3)*pi*( r )^3

V = (4/3)*pi*(3x)^3 ... replace r with 3x

6 0

3 years ago

What expressions are equal 10^5

ryzh [129]

Answer:

10^5 = 100.000

Step-by-step explanation:

We know that 10^5 = 10 * 10* 10 * 10 * 10 = 100.000.

So, we have that 10^5 = 100.000

8 0

3 years ago

Read 2 more answers