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Zielflug [23.3K]
3 years ago
7

A cylinder has a base with a radius of 5 cm and a height of 15 cm. What is the volume of the cylinder? (Use π = 3.14.) A. 471 cm

3 B. 1177.5 cm3 C. 4710 cm3 D. 235.5 cm3
Mathematics
2 answers:
eduard3 years ago
5 0
The formula for volume is
V=\pi r^{2}h
We plug in:
V=\pi (5)^{2}(15)
=\pi (25)(15)
=375\pi
=375*3.14=1177.5
shutvik [7]3 years ago
5 0
Calculated using (pi)x r^2 x h
so 3.14 x 25 x 15
answer there for is B. 1177.5 
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Volgvan

Hello,

x² + 5x + 6 = 0

a = 1 ; b = 5 ; c = 6

∆ = b² - 4ac = 5² - 4 × 1 × 6 = 25 - 24 = 1 > 0

2 solutions :

x_{1} =  \frac{ - b -  \sqrt{\Delta} }{2a}  =  \frac{ - 5 - 1}{2 \times 1}  =  \frac{ - 6}{2}  =  - 3

x_{2} =  \frac{ - b  +   \sqrt{\Delta} }{2a}  =  \frac{ - 5  + 1}{2 \times 1}  =  \frac{ - 4}{2}  =  - 2

S = { -3 ; -2}

3 0
1 year ago
I'm looking at the top at 79.9 angle. I'm 100ft away. What's the height of the building?
Anni [7]
To solve this, notice that you have the angle component (I will call this a) and the x-component (the distance of you from the building) of a trig formula, and you are looking for the y-component. We will use the tangent formula, since this incorporates the angle, x, and y components.

1. Write the formula

tan(a) = y ÷ x

2. Rewrite to include the known values.

tan(79.9) = y ÷ 100

3. Solve for the unknown variable, y.

tan(79.9) × 100 = y ÷ 100 × 100

tan(79.9) × 100 = y

4. A fancy step that I call the "flip flop."

y = tan(79.9) × 100

5. Use a calculator to find the value (make sure the calculator is in "degree" and not "radians" mode).

y = 561.3968

6. Round the number as is appropriate for this problem.

Have a great day!

7 0
3 years ago
Read 2 more answers
How many planes can be drawn through any three noncollinear points?
RideAnS [48]

Answer:

1 plane

I hope this helps!

5 0
3 years ago
I NEED HELP MAN PLEASE!!!! nobody is helping rn ):
igor_vitrenko [27]
B is the first term
c is the common ratio

if the first term is x and the 2nd is y then x times c=y

so
-5 times what=10?
what=-2
c=-2
the first term is -5

-5(-2)^(n-1)

b=-5
c=-2
8 0
3 years ago
(B)
astraxan [27]

Answer:

2. Line RT = 11x - 17, Line PT= 5x + 13

11x - 17 = 5x + 13

11x - 17 = 5x + 13

-5x. -5x

6x - 17 = 13

+17. +17

6x= 30

÷6. ÷ 6

x = 5

(B). According to the rules of a parallelogram, if angle S is 50°, the angle on the same side will be supplementary to it. So, angle R equals 130° and angle Q is also 50°.

6 0
3 years ago
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