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Mazyrski [523]
3 years ago
6

Help needed....

Mathematics
1 answer:
LenKa [72]3 years ago
5 0
The answer is C) y = 4x - 3
B and D can be eliminated by substituting 0 for x in each...the result is not -3
Now you have a 50/50 chance of getting the question correct
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A truck that has a mass of 2900kg and is moving down a hill that is 5 m high. What is the potential energy?
ANTONII [103]
It is kinetic energy
3 0
3 years ago
How long does it take to travel 240 km at a constant speed of 12 km/h?
tankabanditka [31]

Answer:

It will take 12 hours

Step-by-step explanation:

Distance equals rate times time

d = rt

We know the distance and the rate

240 = 12 * t

Divide each side by 12

240/12 = 12t/12

20 = t

It will take 12 hours

5 0
3 years ago
Frank buys p pounds of oranges for $2.29 per pound and the same number of pound ls of apples for $1.69 per pound. What does the
Phantasy [73]

It represents the amount you'll spend all together on one pound of oranges and one pound of apples.

3 0
3 years ago
Read 2 more answers
The numbers of teams remaining in each round of a single-elimination tennis tournament represent a geometric sequence where an i
Anit [1.1K]

Answer:

a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}

Step-by-step explanation:

We are given the following in the question:

The numbers of teams remaining in each round follows a geometric sequence.

Let a be the first the of the geometric sequence and r be the common ration.

The n^{th} term of geometric sequence is given by:

a_n = ar^{n-1}

a_4 = 16 = ar^3\\a_6 = 4 = ar^5

Dividing the two equations, we get,

\dfrac{16}{4} = \dfrac{ar^3}{ar^5}\\\\4}=\dfrac{1}{r^2}\\\\\Rightarrow r^2 = \dfrac{1}{4}\\\Rightarrow r = \dfrac{1}{2}

the first term can be calculated as:

16=a(\dfrac{1}{2})^3\\\\a = 16\times 6\\a = 128

Thus, the required geometric sequence is

a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}

4 0
3 years ago
It is known that the distance in metres through which a body falls freely varies directly as the square of the time taken. If a
erma4kov [3.2K]

Answer:

125 meters

Step-by-step explanation:

Let distance = d and time is t

Using the variation;

d = k t^2

So let’s us get k

80 = k * 4*2

16k = 80

k = 80/16 = 5

So for 5 seconds, the distance would be;

d = 5 * 5^2

d = 125 meters

4 0
3 years ago
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