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4 years ago

Solve |x| – 17 = 60 What is the correct answer

Mathematics

2 answers:

belka [17]4 years ago

6 0

Answer:

x=77

Step-by-step explanation:

Hope this helps!!!!

Kazeer [188]4 years ago

4 0

Answer:

x = 77, x = -77

Step-by-step explanation:

|x| – 17 = 60

Add 17 to each side

|x| – 17+17 = 60+17

|x| = 77

The absolute value equation has two solutions, one positive and one negative

x = 77, x = -77

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Given below are seven observations collected in a regression study on two variables, x (independent variable) and y (dependent v

natka813 [3]

Answer:

Step-by-step explanation:

Hello!

Given the independent variable X and the dependent variable Y (see data in attachment)

The regression equation is

^Y= b₀ + bX

Where

b₀= estimation of the y-intercept

b= estimation of the slope

The formulas to manually calculate both estimations are:

$b= \frac{sumXY-\frac{(sumX)(sumY)}{n} }{sumX^2-\frac{(sumX)^2}{n} }$

$b_0= \frac{}{y} - b*\frac{}{x}$

n=7

∑X= 42

∑X²= 292

∑Y= 49

∑Y²= 403

∑XY= 249

$\frac{}{y} = \frac{sumY}{n} = \frac{49}{7} = 7$

$\frac{}{x} = \frac{sumX}{n} = \frac{42}{7} = 6$

$b= \frac{249-\frac{42*49}{7} }{292-\frac{42^2}{7} }= -1.13$

$b_0= 7- (-1.13)*6= 13.75$

^Y= 13.75 - 1.13X

Using the raw data you can calculate the coefficient of determination as:

$R^2= \frac{b^2[sumX^2-\frac{(sumX)^2}{n} ]}{[sumY^2-\frac{(sumY)^2}{n} ]}$

$R^2= \frac{(-1.13)^2[292-\frac{(42)^2}{7} ]}{[403-\frac{(49)^2}{7} ]}= 0.84$

This means that 84% of the variability of the dependent variable Y is explained by the response variable X under the model ^Y= 13.75 - 1.13X

I hope this helps!

6 0

4 years ago

i found 3 boxes of marker. each box had 10 markers inside.if i shared the markers i found 5 friendSs how many markers will each

Strike441 [17]

So, 3 boxes x 10 markers=

30 markers/ 5=

6 markers each person will get.

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3 years ago

Read 2 more answers

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irga5000 [103]

Answer:

Undefined

Step-by-step explanation:

There is no slope for these coordinates due to the repeating numbers.

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3 years ago

A triangle has a priemeter of 65.5 feet. One side of the triangle is 22.7 feet, the second side is 12.9 feet, what isthe length

Alecsey [184]

The last side of the triangle would be 29.9

5 0

4 years ago

Please answer the question from the attachment.

Feliz [49]

If Keith pays $70, we know that $14 would have been paid, regardless of how long he rented a bike for. 70 - 14 = 56, so $56 would have been paid depending on the time he rented the bike for. If the cost per hour is $7, then the number of hours Keith rented the bike for is just $56 ÷ $7 per hour, which equals 8 hours.

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3 years ago