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3 years ago

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Sean borrowed some money from his friend in order to help buy a new video game system. Sean agreed to pay back his friend $10 pe

r week, and after 9 weeks, Sean still owed her Write an equation for the function L(t), representing the amount Sean owes his friend after t weeks. *

1 answer:

aliya0001 [1]3 years ago

6 0

Answer: (10)9

Step-by-step explanation:

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natka813 [3]

Answer:

x= -8 , y = 5

x= 25/4 , y = 1/4

Step-by-step explanation:

substitute first eqn into the second eqn:

(7 - 3y)^2 -y^2 = 39

49 - 42y + 9y^2 - y^2 = 39

8y^2 - 42y +10 =0

4y^2 - 21y + 5 = 0

(4y-1) (y-5) = 0

y= 1/4 , 5

when y=1/4

x = 7- 3/4

=25/4

when y= 5

x = 7- 15

= -8

5 0

3 years ago

Read 2 more answers

What is the constant of proportionality, and what method did you use to determine this?

atroni [7]

Answer:

it should be A

Step-by-step explanation:

hope this helps :)

8 0

2 years ago

A powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. A group of 50 men (grou

MA_775_DIABLO [31]

Answer:

the lower limit is 35% women believed and 65% of men believed in serial discrimination

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3 years ago

A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following

GenaCL600 [577]

Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

Estimated slope of sample regression line = $\dfrac{Upper \ limit + lower\ limit}{2}$

Here , confidence interval : (-0.181, 1.529)

Estimated slope of sample regression line = $\dfrac{-0.181+1.529}{2}$

$=\dfrac{1.348}{2}\\\\=0.674\ \ \ \ [\text{ positive}]$

⇒Correlation coefficient(r) must be positive, So a. is true.

But, d. and e. are wrong(0.674 ≠ 0 or 1.348).

We cannot check residuals or its sum from confidence interval of slope of a regression line, so b is wrong.

We cannot say that scatterplot is linear as we cannot determine it from interval, so c. is wrong

So, the correct option : a. The correlation coefficient of the data is positive.

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2 years ago

What are the angles type and relation...??

vredina [299]

Supplementary angels complementary angels and congruent angles

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2 years ago