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Basile [38]
3 years ago
13

Help me please??????

Mathematics
2 answers:
Vilka [71]3 years ago
7 0

Answer:

Option D, 40

Step-by-step explanation:

90 + 50 = 140

180 - 140 = 40

alexandr402 [8]3 years ago
5 0

Answer:

40

Step-by-step explanation:

180-90+50=40

brainliest appreciated

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A. 11 cm^3<br> B. 14 cm^3<br> C. 15 cm^3<br> D. 25 cm^3
IgorLugansk [536]
Lets get started :)

We need to find the radius of the larger cylinder

V = \pir²h
960 = \pir²(16)
\frac{960}{16} = \pi r^2
60 = \pi r^2
\frac{60}{ \pi } = r^2
r = \sqrt{ \frac{60}{ \pi } }
r ≈ 4.27 cm

The ratio of the bigger cylinder to smaller is:
16 : 4

Therefore, the big cylinder is 4 times bigger than the small cylinder

\frac{4.37}{4} = r
r = 1.09 cm (radius of small cyclinder)

V (small cylinder) = \pi(1.09)²(4)
                             = 15 cm³

Your answer will be C. 15 cm³

3 0
3 years ago
Read 2 more answers
(03.03)
xxMikexx [17]

Answer:

3

Step-by-step explanation:

4 0
3 years ago
PLEASE PLEASE PLEASE PLEASE HELP!!!!! Boo’s door is the only one left in the scare center when Sullivan goes back. If there are
lawyer [7]

Answer:

8 1/3%

Step-by-step explanation:

That'd be 1/12 times 100%, or 8 1/3 %.  

Boo's door is 8 1/3% of the 12 door total.

3 0
3 years ago
Read 2 more answers
(2+3)*38-84+48937 divided by 2
lutik1710 [3]
The answer is 491449/2
6 0
3 years ago
Read 2 more answers
If sin θ = 3 over 7 and tan θ &lt; 0, what is the value of cos θ?
AnnZ [28]
if\ \sin\Theta \ \textgreater \  0\ and\ \tan\Theta \ \textless \  0\ then\ \Theta\in\underbrace{(90^o;\ 180^o)}_{\left(\dfrac{\pi}{2};\ \pi\right)}\\\\therefore\ \cos\Theta \ \textless \  0.

\text{Use:}\ \sin^2x+\cos^2x=1\\\\\left(\dfrac{3}{7}\right)^2+\cos^2\Theta=1\\\\\dfrac{9}{49}+\cos^2\Theta=1\ \ \ |-\dfrac{9}{49}\\\\\cos^2\Theta=\dfrac{40}{49}\to\cos\Theta=-\sqrt{\dfrac{40}{49}}\\\\\cos\Theta=-\dfrac{\sqrt{40}}{\sqrt{49}}\\\\\cos\Theta=-\dfrac{\sqrt{4\cdot10}}{7}\\\\\boxed{\cos\Theta=-\dfrac{2\sqrt{10}}{7}}
8 0
4 years ago
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