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3 years ago

Kiley gathered the data in the table. She found the approximate line of best fit to be y = 1.6x – 4.

Mathematics

2 answers:

Alisiya [41]3 years ago

8 0

Answer:

the correct answer is D)1.8

Step-by-step explanation:

When you plug the value 3 into the formula you get the experimental value of 0.8 then you subtract -1 so the negative one turns into a positive one. then you add because both signs change. hope this helps

mihalych1998 [28]3 years ago

7 0

The difference between the observed value of the dependent variable (y) and the predicted value (ŷ) is called the residual (e). When x is equal to 3, the value of y from the best fit line would be 0.8. Therefore, the residual would be -1 - 0.8 = -1.8. Option A is the correct answer.

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Can you guys help me with this?

Blababa [14]

Answer:

We have been given many sequences below:

The sequence is said to be geometric if there is same ratio between consecutive terms

$\frac{a_n}{a_{n-1}}$

So we will check all the sequences one by one:

(1) $\frac{-9}{-2.7}=\frac{10}{3}$

$\frac{-30}{-9}=\frac{10}{3}$

$\frac{-100}{-30}=\frac{10}{3}$ .

Hence, geometric

(2) $\frac{2.5}{-1}=-2.5$

$\frac{-6.25}{2.5}=-2.5$

$\frac{15.625}{-6.25}=-2.5$

Hence, geometric.

(3) $\frac{9.2}{9.1}=0.010$

$\frac{9.3}{9.2}=0.010$

$\frac{9.4}{9.3}=0.010$

Hence, geometric.

(4) $\frac{0.8}{8}=0.1$

$\frac{0.08}{0.8}=0.1$

$\frac{0.008}{0.08}=0.1$

Hence, geometric.

(5) $\frac{-4}{4}=-1$

$\frac{-12}{-4}=3$

Ratio is not same hence, not geometric.

6 0

3 years ago

I really need help with this

Len [333]

Answer:

Step-by-step explanation:

I recall seeing this question. If I'm wrong, let me know.

7 0

3 years ago

Arya paid $75,000 for her house. Its property value increased by 2.2% per year. When Arya sold her

Helga [31]

Answer:

Step-by-step explanation:

This is a compound growth problem which is governed by the formula shown below:

$F=P(1+r)^t$

Where

F is the future amount (we want to find this)

P is the present amount (which is 75,000)

r is the rate of increase, in decimal (this is 2.2% or 2.2/100 = 0.022)

t is the time in years (which is 11 years)

Substituting the known values, we find F, the amount it is worth after 11 years:

$F=P(1+r)^t\\F=75,000(1+0.022)^{11}\\F=75,000(1.022)^{11}\\F=95,284$

Rounding to nearest hundred, that will be $95,300

Answer choice C is right.

3 0

3 years ago

Find the absolute value l-7.5l

Hoochie [10]

An absolute value is "how far a number is from zero."

When there's a negative number, all you do is take out the negative sign and think of it as a positive number. Therefore, the absolute value is 7.5.

4 0

3 years ago

a, b and c are integers. They are the length, width and height of a cuboid respectively. It has a volume of 12cm^3, and the top

iren [92.7K]

Tbh i have no clue. but c 12cm^ and and b and c are both b and c so c is b if s is a.
explain:

8 0

3 years ago