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Gnoma [55]
3 years ago
9

Can you please help me i really need help you get 15 points if you answer all please just say a or b or c or d for answers

Mathematics
1 answer:
Hoochie [10]3 years ago
3 0
For the brownie one it’s C
For the train one it’s B
For the flour one it’s C
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a marble is rolled down a ramp. The distance it travels is described by the formula d=490T^2 where d is the distance in centimet
Helga [31]

Answer:

The period when its more than halfway

= 2 < t  ≤ 2.83 seconds   ( to nearest hundredth).

Step-by-step explanation:

When is is halfway down the ramp d = 3920/2 = 1960 cm, so:

1960 = 490 t^2

t^2 = 1960/490 = 4

t = 2 seconds.

When it reaches the bottom d = 3920 :

t^2 = 3920/490 =  8

t = 2.83 seconds.

5 0
3 years ago
Can I have help help on 22,24,26,28,30 please
Dmitriy789 [7]
I'll do 22 for you. 22, 24, 26, 28, and 30, are very similar to each other.

PROPORTIONS:
Draw it out.

5/7 = either c/6, or b/5. 
I'll do c/6
5/7 = c/6
solve for c
7c=30
c=30/7
now do the same thing to the remaining side, b.
there!

4 0
3 years ago
Solve the linear equation. 14x − 1/2 (4x+6) = 3 (x−4) − 18
LekaFEV [45]

14x - (2x + 3) = 3x - 12 - 18 \\ 14x - 2x - 3 = 3x - 30 \\ 12x - 3 = 3x - 30  \\ 9x = - 27 \\ x =  - 3
7 0
3 years ago
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PLZ HELP QUICK WILL MARK BRAINLIEST
slega [8]
For the Fist One it’s Pentagonal Pyramid
5 0
3 years ago
A triangle has angles in the ratio 3:10:2 what is the size of the largest angle x?
Annette [7]

Answer:

B

Step-by-step explanation:

let the angles be 3k,10k,2k

then 3k+10k+2k=180

15k=180

k=180/15=12

x=10k=10×12=120°

5 0
3 years ago
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