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3 years ago

The radius of a sphere with a surface area of 36pi square meters

Mathematics

1 answer:

Marysya12 [62]3 years ago

5 0

Answer:

Step-by-step explanation:

surface area=4πr²=36π

r²=9

r=3

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How tall is the tree? 5ft 35° -20ft- [? ]ft

SVEN [57.7K]

Answer:

$\boxed{\bf 19ft}$

Step-by-step explanation:

$\bf tan\:\theta =\cfrac{opp}{adj}$

$\bf tan(35^o)=\cfrac{x}{20}$

$\bf 20\;tan (35^o)=x$

$\bf 14ft=x$

The height of the tree:-

$\bf x+5ft$

$\bf 14ft+5ft$

$\bf 19ft$

3 0

2 years ago

Read 2 more answers

WILL MARK BRAINLIEST FOR BEST ANSWERA

Fantom [35]

Answer:

The length of the road that runs straight from Pittsburgh to Jeanette is 29.8 miles

Step-by-step explanation:

We are given

Bethel Park is 28 miles directly west of Jeanette

10.3 miles directly south of Pittsburgh

We can draw diagram

we can see that this is triangle

so, we can use Pythagoras theorem

and we get

$x^2=28^2+10.3^2$

now, we can solve for x

$x=\sqrt{28^2+10.3^2}$

$x=29.834miles$

So,

The length of the road that runs straight from Pittsburgh to Jeanette is 29.8 miles

7 0

3 years ago

V=1/3nr^2h ; solve for r

sertanlavr [38]

Answer: r=3v/2nh

Step-by-step explanation:

3 0

3 years ago

A 17-foot piece of string is cut into two pieces so that the longer piece is 5 feet longer than twice the shorter piece. Find th

Vilka [71]

You wanna write an equation to find out what the two lengths will be. Because the string in 17 feet the equation has to equal 17. Then for the shorter length you need to symbolize it with a variable (x). For the longer side it is the smaller number plus five(x+5).

Therefore, the equation is x+(x+5)=17

from there you get x= 6ft which leaves the longer side equaling 11ft

8 0

3 years ago

Write a polynomial function that has the given zeros. 1/2, 1 , 5

Tatiana [17]

Answer:

Step-by-step explanation:

x²-1²...it can be written as (x+1),(x-1)...surely you will get -1 and 1 as your zero

8 0

3 years ago