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Elena L [17]
2 years ago
7

Randy divides (2x4 – 3x3 – 3x2 + 7x – 3) by (x2 – 2x + 1) as shown below. What error does Randy make? x squared minus 2 x + 1 St

artLongDivisionSymbol 2 x Superscript 4 Baseline minus 3 x cubed minus 3 x squared + 7 x minus 3 EndLongDivisionSymbol. minus 2 x Superscript 4 Baseline minus 4 x cubed + 2 x squared to get a remainder of x cubed minus 5 x squared + 7 x. minus x cubed minus 2 x squared + x to get a remainder of negative 3 x squared + 6 x minus 3. minus negative 3 x squared + 6 x minus 3 to get a remainder of 0 and a quotient of 2 x squared + x + 3. He makes a subtraction error. He makes an error writing the constant term in the quotient. He makes an error choosing the x-term in the quotient. He makes an error rewriting the problem in long division.

Mathematics
1 answer:
melomori [17]2 years ago
5 0

Answer:

See attached sheet

Step-by-step explanation:

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A botanist predicts that the height of a certain tree will increase by 2% every year. If the height of the tree is now 50 feet,
Neporo4naja [7]
To answer this kinda question, we gotta tackle it year by year. 
By the end of the first year, the tree would grow by 2% = 102% of its original height.
Year 1: 102% x 50 = 51 feet
Year 2: 103% x 51 = 52.02 feet

Hope I helped!! xx
4 0
2 years ago
Mr=120 and ms=110 find mt
nata0808 [166]
Mr=120 Ms=110 and mt=100
3 0
2 years ago
A rocket leaves the surface of Earth at time t=0 and travels straight up from the surface. The height, in feet, of the rocket ab
erastovalidia [21]

Answer:

Remember that:

Speed = distance/time.

Then we can calculate the average speed in any segment,

Let's make a model where the average speed at t = t0 can be calculated as:

AS(t0) = (y(b) - y(a))/(b - a)

Where b is the next value of t0, and a is the previous value of t0. This is because t0 is the middle point in this segment.

Then:

if t0 = 100s

AS(100s) = (400ft - 0ft)/(200s - 0s) =   2ft/s

if t0 = 200s

AS(200s) = (1360ft - 50ft)/(300s - 100s) = 6.55 ft/s

if t0 = 300s

AS(300s) = (3200ft - 400ft)/(400s - 200s) =  14ft/s

if t0 = 400s

AS(400s) = (6250s - 1360s)/(500s - 300s) = 24.45 ft/s

So for the given options, t = 400s is the one where the velocity seems to be the biggest.

And this has a lot of sense, because while the distance between the values of time is constant (is always 100 seconds) we can see that the difference between consecutive values of y(t) is increasing.

Then we can conclude that the rocket is accelerating upwards, then as larger is the value of t, bigger will be the average velocity at that point.

3 0
2 years ago
Mrs Atkins is going to choose two students from her class to take part in a competition.
Schach [20]

Given:

Total number of girls in her class = 16

Total number of boys in her class = 14

To find:

The number of different ways of choosing one girl and one boy.

Solution:

We have,

Total number of girls = 16

Total number of boys = 14

So,

Total number of ways to select one girl from 16 girls = 16

Total number of ways to select one boy from 14 boys = 14

Now, number of different ways of choosing one girl and one boy is

16\times 14=224

Therefore, the required number of different ways is 224.

6 0
2 years ago
In a class, 4/5 of the students have mathematical instruments. 1/4 of these students have lost their protractors. What fraction
Novay_Z [31]

Answer:

\frac{11}{20}

Step-by-step explanation:

\frac{4}{5} - \frac{1}{4}          <em>Subtract the students who don't have protractors from the students who have mathematical instruments.</em>

\frac{11}{20}

6 0
2 years ago
Read 2 more answers
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