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3 years ago

Help please it would really help! Please I'll give a brainliest for the best and correct answer!

Mathematics

2 answers:

Effectus [21]3 years ago

8 0

The answer is D. Trust me. I took this test.

iren [92.7K]3 years ago

6 0

The answer to your question is C. I hope this has helped

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PLZZZ HELP IM IN A RUSH

cupoosta [38]

1/3 - 2/9 - 1/3

= -2/9
(Decimal: -0.222222)

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2 years ago

Determine the direction that is parábola opens: y=4x^2+8x+2

marissa [1.9K]

It should open up because the a which is 4 is positive

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3 years ago

Where v is the final velocity (in m/s), u is the initial velocity (in m/s), a is the acceleration (in m/s²) and s is the distanc

Anna11 [10]

Answer:

The final velocity v is 21.74 m/s.

Step-by-step explanation:

Given:

$\textrm{initial velocity} = u = 9\ m/s\\\textrm{acceleration} = a = 7\ m/s^{2}\\\textrm{distance} = s = 28\ m$

To find:

$\textrm{final velocity} = v = ?$

Solution:

As we know the third equation of motion is represented as

$v^{2} = u^{2} + 2\times a\times s\\$

Substituting the values u, a and s in the above equation we get

$v^{2} = 9^{2} + 2\times 7\times 28\\ =81 + 392\\=473\\$

$v =\±\sqrt{473} \\v =\sqrt{473} \ \textrm{as acceleration is positive v is also positive}\\v = 21.74\ m/s$

7 0

3 years ago

Why are all the questons just for 5 points no one choses higher

ValentinkaMS [17]

Answer:

I don't know I want even let me choose 5

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2 years ago

At the beginning of an experiment, the number of bacteria in a colony was counted at time t=O. The number of bacteria in the col

yan [13]

Answer:

1092

Step-by-step explanation:

We have been given that the number of bacteria in the colony t minutes after the initial count modeled by the function $B(t)=9(3)^t$ . We are asked to find the average rate of change in the number of bacteria over the first 6 minutes of the experiment.