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saul85 [17]
3 years ago
6

Which decimal numbers are equivalent to 2/5 ? choose all answers that are correct.

Mathematics
1 answer:
Paladinen [302]3 years ago
7 0
A and C! (:
If you divide 2/5, you get 0.4. The thing with the decimal being before the 4, you can always put a 0 after it to get the same answer which would be 0.40!
Good luck, rockstar! I hope you pass!
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The Apollo's chariot, a rollercoaster at Busch gardens, moves at 110 feet per second. The equation of the ride can be represente
GREYUIT [131]

Answer:

169.39 feet.

Step-by-step explanation:

We have been given that the Apollo's chariot, a roller coaster at Busch gardens, moves at 110 feet per second. The equation of the ride can be represented by the equation h(t)=-16t^2+101t+10. We are asked to find the maximum height that the ride can reach.

To  find the maximum height that the ride can reach, we need to find y-coordinate of vertex of parabola because our given equation is downward opening parabola and its maximum point will be the vertex.

First of all, we will find x-coordinate of vertex using formula \frac{-b}{2a}.

\frac{-101}{2(-16)}=\frac{101}{32}=3.15625

Now, we will substitute t=3.15625 in our equation to find y-coordinate of vertex as:

h(3.15625)=-16(3.15625)^2+101(3.15625)+10

h(3.15625)=-16(9.9619140625)+101(3.15625)+10

h(3.15625)=-159.390625+318.78125+10

h(3.15625)=169.390625

h(3.15625)\approx 169.39

Therefore, the ride will reach to a maximum height of 169.39 feet.169.39 feet.

8 0
4 years ago
Omg pls help and include work if you can. please simplify
Kruka [31]

rad 128 can be broke into 64*2

square root of 64 is 8, times -5,

which leaves -40rad2

7 0
3 years ago
Who solved the problem incorrectly, and where was the first mistake made?
omeli [17]

Answer:

B

Step-by-step explanation:

20 × 30 = 600

30 × 6 = 180

5 × 6 = 30

but 20 × 5 doesn't equal 10

5 0
3 years ago
Read 2 more answers
Will give you BRAINLEST
____ [38]

Answer:

Both boxes have the same amount of work applied to them. The smaller box will get to the end first.

Step-by-step explanation:

For the 400 kg box, we can say,

force = 1 newton

force = mass*acceleration

1 = 400*acceleration

acceleration = 1/400 meters per second^2

acceleration = 0.0025 meters per second^2

Each second, the larger box's velocity is increasing by 0.0025 meters per second.

While the smaller box would have an acceleration of...

force = 1 newton

force = mass*acceleration

1 = 200*acceleration

acceleration = 1/200 meters per second^2

acceleration = 0.005 meters per second^2

Which is twice as much as the larger box.

Put simply: if the force applied is the same for the two boxes, then the smaller box will have larger acceleration. This is because more force is needed to push on the larger mass.

Because the smaller box has more acceleration, it will naturally travel faster compared to the larger box. Therefore, the smaller box reaches the goal line faster.

7 0
3 years ago
Hello please help me, i am in middle school, i failed two classes last semester and i failed one class this semester, will i flu
maks197457 [2]

Answer:

u should be fine. if anything summer school should help you. college does not care about your middle school grades but you should try your hardest to pass. You have to at least pass

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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