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rewona [7]
3 years ago
15

The square of a number is 12 less than 7 times the number. What is the number

Mathematics
1 answer:
Elan Coil [88]3 years ago
4 0
You can put "3 or 4" which is in your multiple choice :)
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The IQ scores and English test scores of fifth grade students is given by the regression line 9 = -26.7 +0.9346s, where y is the
Phantasy [73]

Answer:

Option E) 2.68; The regression line under predicts the student's English test score.

Step-by-step explanation:

We are given the following information:

The IQ scores and English test scores of fifth grade students is given by the regression line

y = -26.7 +0.9346s

where y is the predicted English score and s is the IQ score.

Here English score is the predicted variable that is the dependent variable and the IQ score is the independent variable and plays the role of predictor.

An actual English test score for a student is 65.7 with an IQ of 96. We have to predict the English score with the help of regression equation.

Predicted or interpreted English score =

y = -26.7 +0.9346(96)= 63.0216

Thus, predicted English score is 63.0216.

Observed value of English score at IQ 96 is 65.7

Residual = Observed value - Predicted value

= 65.7 - 63.0216 = 2.6784 \approx 2.68

Since the predicted value is less than the original or observed value we can say that the regression line under predict the English score.

Option E) 2.68; The regression line under predicts the student's English test score.

7 0
3 years ago
Please help me ASAP easy problem giving brainlist!!
Fiesta28 [93]
<> because it means greatest and least only
7 0
3 years ago
Read 2 more answers
What is the ratio for 2 red paper clips to 6 blue paper clips? Write it as a fraction.
Dmitriy789 [7]

Answer:

2 over 6 as a fraction simplifies as 1 over three.

Step-by-step explanation:

If you are writing as a fraction, you put 2 over 6 and simplify. Your answer is 1 over 3

7 0
3 years ago
Read 2 more answers
Daniel kicks a soccer ball and the trajectory is modeled by f(t) =− 16t^2+ 32t .
vagabundo [1.1K]

Answer:

f(1) = 16

Domain: 0 ≤ t ≤ 2

Step-by-step explanation:

Given

f(t) = -16t²+ 32t

Solving (a): f(1)

Substitute 1 for t in f(t)

f(t) =− 16t²+ 32t .

f(1) =− 16 * (1)²+ 32 * 1

f(1) = -16 * 1 + 32

f(1) = -16 + 32

f(1) = 16

Solving (b): The domain

The implication of the given parameter in (b) is that t ≤ 2.

Since t represents time, t can't be negative.

Hence, a reasonable domain is

0 ≤ t ≤ 2

3 0
3 years ago
Mark has a coupon for 10% off his entire purchase. If Mark buys $41.00 worth of merchandise, how much will Mark spend? *
kifflom [539]

Answer:

36.90

Step-by-step explanation:

41 X 0.10 = 4.10

41 - 4.10 = 36.90

H weill spend 36.90 dollars.

Please mark brainliest!

Have a great day!

4 0
2 years ago
Read 2 more answers
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