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Rasek [7]
3 years ago
15

Help math plz! Giving brainlist :D

Mathematics
1 answer:
adoni [48]3 years ago
7 0
No, there is not common ratio...

0.972  (common ratio is 0.3...10.8*.3*.3)

you can use the geometric mean to find this center value easily...

(18*8)^(1/2)=12
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10 points plz help me
lord [1]

Answer:

First drawing - answer is:  D: DG, FG and DE

Second drawing - answer is:  π (pi)

Third drawing - answer is:  70° ( If you mean on measure of central angle which is corresponing to the arc CB)

Fourth drawing - answer is: y=55° ( If you mean that the value of angle ∠AOB=70° )

Step-by-step explanation:

For the second drawing

arc AB = (r · π / 180) · α = (3 · π/180) · 60 = (180 · π) / 180 = π

For the third drawing

∠CAB is peripheral angle of the central angle ∠CFB.

∠CFB= 2·∠CAB= 2· 35° = 70°

Good luck!!!

8 0
3 years ago
Y-intercept oftheparabola y = x2 – 2x – 3
inessss [21]
(X-3)(X+1)=0
X-3=0
X=3
X+1=0
X=-1
6 0
3 years ago
Graph the inequality.<br> 2x+5y&gt; -15
Sedbober [7]

Answer: See attached

Step-by-step explanation:

   [] Since the inequality uses greater than (>) and <em>not</em> greater than or equal to (≥), the line will be dashed.

   [] The inequality is greater than (>) so we will shade above the line as values "above" are greater.

5 0
2 years ago
Read 2 more answers
Five years ago alex was 12 times as old as tom alex is 41 now how old is tom now
anastassius [24]

Step-by-step explanation:

I think this will help you. Thanks.

8 0
3 years ago
Hellpp please 20 points for that​
Sergio [31]

Answer:

a) 12cm

b) 360cm²

c) 2160cm cubed

Step-by-step explanation:

a)

you would use Pythagoras theorem  for A

so half of 18 is 9

15² - 9² = 144

the square root of 144 is 12

the height is 12cm

b)

18 x 20 = 360cm²

c)

csa x L

csa = b x h divide by 2

18 x 12 = 216cm²/2 = 108cm²

108xm² x 20cm = 2160cm cubed

8 0
2 years ago
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