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2 years ago

5

You just found a positive trend line showing a strong relationship between homework scores and test scores for five students. Ex

plain what this means

2 answers:

Scrat [10]2 years ago

8 0

The positive trend among the homework scores and the test scores would reveal that if a student does well in homework, he is likely to do well in exams. This can be explained in the sense that the homework will serve as the practice for the student before finally taking the exam.

Digiron [165]2 years ago

6 0

Answer:

A positive slope of the trend line comparing homework scores and test scores means that higher homework scores infer a higher test score. A strong relationship between the two is a good predictor of a relationship between homework scores and test scores.

Step-by-step explanation:

You might be interested in

1+4=5, 2+5=12, 3+6=21,8+11=

klemol [59]

The answer is 40 because once you have 21 your just adding 19 and then that makes it 40.

8 0

2 years ago

A customer borrowed $2000 and then a further $1000 both repayable in 12 months. What should he have saved if he had taken out on

Neporo4naja [7]

Answer:

a. $60

Step-by-step explanation:

We will use simple interest formula to solve our given problem.

$A=P(1+rt)$ , where

A= Amount after t years.

P= Principal amount.

r= Interest rate in decimal form.

t= Time in years.

Let us find amount of loans repayable after 12 months for taking two amounts of $2000 and $1000.

As $2000 and $1000 are less than 2500, so the rate of loan will be 10%.

$10\%=\frac{10}{100}=0.10$

12 months = 1 year.

$A=2000(1+0.10\times 1)$

$A=2000(1+0.10)$

$A=2000(1.10)$

$A=2200$

Now let us find amount repayable after 12 months for borrowing $1000.

$A=1000(1+0.10\times 1)$

$A=1000(1+0.10)$

$A=1000(1.10)$

$A=1100$

Adding these amounts we will get total repayable amount after 12 months for borrowing $2000 and $1000 separately.

$\text{Amount repayable for borrowing two separate amounts}=2200+1100=3300$

Now let us find repayable amount after 12 months for taking 1 loan. As $3000 is between $2501 and $7500, so rate of loan will be 8%.

$8\%=\frac{8}{100}=0.08$

$A=3000(1+0.08\times 1)$

$A=3000(1+0.08)$

$A=3000(1.08)$

$A=3240$

Now let us find difference between both repayable loan amounts.

$\text{Difference between both repayable loan amounts}=3300-3240$

$\text{Difference between both repayable loan amounts}=60$

Therefore, the customer should have saved $60, if he had taken out one loan for $3000 and option a is the correct choice.

6 0

2 years ago

Read 2 more answers

Find f. f ''(x) = −2 + 36x − 12x2, f(0) = 8, f '(0) = 18 f(x) =

Alik [6]

Integrate <span>f ''(x) = −2 + 36x − 12x2 with respect to x:

f '(x) = -2x + (36/2)x^2 - (12/3)x^3 + c. Find c by letting x = 0 and using f(0)=8.

Then f '(0) = -2x + 18x^2 - 4x^3 + c = 18 (which was given).

Then -0 + 0 - 0 + c = 18, so c = 18 and

f '(x) = </span>-2x + 18x^2 - 4x^3 + 18.

Go through the same integration process to find f(x).

8 0

2 years ago

Does the construction demonstrate how to bisect a segment correctly by hand?

nadya68 [22]

Answer:

see below (I hope this helps!)

Step-by-step explanation:

First of all, we can clearly tell that a straightedge was used to create CD but that doesn't prove anything so we can eliminate the second and fourth options. Upon measuring the lengths of AC and CB, we see that they are equal so the answer is Yes; the compass was kept at the same width to create the arcs for points C and D. The reason why this is so important is because we know that AC = CB = BD = DA because the compass width is the same, so therefore, ACBD is a rhombus based on the definition of a rhombus. We know that the diagonals of a rhombus bisect each other and since CD and AB are diagonals, we know that CD bisects AB.

8 0

2 years ago

Kelly's basketball team made a total of 33 two points and three point baskets in their game last week. If her team scored a tota

vladimir2022 [97]

Answer:

They make <u>27</u> two points basket.

Step-by-step explanation:

Given:

Kelly's basketball team made a total of 33 two points and three point baskets in their game last week.

If her team scored a total of 72 points.

Now, to find the number of two points baskets they make.

Let the two points basket be $x.$

And the three points basket be $y.$

So, total number of two points and three point baskets are:

$x+y=33$

$y=33-x\ \ \ .........(1)$

Now, the total points team scored:

$2x+3y=72$

Substituting the value of $y$ from equation (1) we get:

$2x+3(33-x)=72$

$2x+99-3x=72$

<em>Subtracting both sides by 99 we get:</em>

$2x-3x=-27$

$-x=-27$

<em>Dividing both sides by -1 we get:</em>

$x=27.$

The the two points basket = 27.

Therefore, they make 27 two points basket.

4 0

2 years ago