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3 years ago

Andrea drew a regression line for this paired data set.

Mathematics

2 answers:

Tems11 [23]3 years ago

6 0

The equation of the line that passes through the points

(1,5) and (5,13) is y=2x+3

JulsSmile [24]3 years ago

6 0

Answer:

The correct option is 2.

Step-by-step explanation:

If a line passing through two points, then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

It is given that Andrea drew a regression line for this paired data set. Her line passed through (1, 5) and (5, 13) .

The equation of Andrea's regression line is

$y-5=\frac{13-5}{5-1}(x-1)$

$y-5=\frac{8}{4}(x-1)$

$y-5=2(x-1)$

$y-5=2x-2$

$y=2x-2+5$

$y=2x+3$

The equation of Andrea's regression line is y=2x+3. Therefore correct option is 2.

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Alicia has invented a new app that two companies are interested in purchasing for a 2-year contract. Company A is offering $10,0

Fantom [35]

Answer:

Month 8

In this month Company B's plan will pay $64,000 versus $45,000 from Company A.

Step-by-step explanation:

Start by calculating the monthly payments for both plans.

Month - Company A - Company B

1 $10,000 $500

2 $15,000 $1,000

3 $20,000 $2,000

4 $25,000 $4,000

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10 $55,000 $256,000

11 $60,000 $512,000

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19 $100,000 $131,072,000

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22 $115,000 $1,048,576,000

23 $120,000 $2,097,152,000

24 $125,000 $4,194,304,000

7 0

3 years ago

Read 2 more answers

What is the equivalent to 2:3 ?

leva [86]

2:3 is equivalent to 0.666 repeating

If you have any further questions feel free to ask.

Hope this helps.

8 0

3 years ago

What is the value of x?

stiks02 [169]

Answer:

Step-by-step explanation:

Use Pythagoras Theorem

x² + 16² = 34²

x² + 256 = 1156

x² = 1156 - 256

x² = 900

x= √3*3*10*10

x= 3*10

x = 30

4 0

3 years ago

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The leaning tower of Pisa currently "leans" at a 4 degree angle and has a vertical height of 55.86 meters. How tall was the lean

Marizza181 [45]

Answer:

56 meters.

Step-by-step explanation:

Please find the attachment.

Let the leaning tower's be h meters tall, when it was originally built.

We can see from our attachment that the side with length 55.86 meters is hypotenuse and h is adjacent side for 4 degree angle.

Since we know that cosine relates the adjacent and hypotenuse of a right triangle.

$\text{Cos}=\frac{\text{Adjacent}}{\text{Hypotenuse}}$

Upon substituting our given values we will get,

$\text{Cos (4)}=\frac{55.86}{h}$

$h=\frac{55.86}{\text{Cos (4)}}$

$h=\frac{55.86}{0.99756405026}$

$h=55.996\approx 56$

Therefore, the leaning tower was approximately 56 meters, when it was originally built.

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3 years ago

Which type of triangle will always have exactly 1-fold reflectional symmetry? right triangle obtuse triangle equilateral triangl

ivolga24 [154]

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