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3 years ago

EASY POINTS PLEASE ANSWER!!

Mathematics

2 answers:

maxonik [38]3 years ago

8 0

Answer:

6.68 hours

Step-by-step explanation:

pentagon [3]3 years ago

4 0

If Bryan’s and Sequola’s group work together it would take them both 4 hours to build a garage because 16 - 12 = 4.

Hope this helps ;-)

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Compute the least-squares regression line for predicting y from a given the following summary statistics. Round final answers to

qwelly [4]

Answer: Regression line equation: $\hat{y}=-1.008x+39.1704$

Step-by-step explanation:

Equation of least-squares regression line for predicting y :

$\hat{y}=b_1x+b_o$

, where $\text{Slope} (b_1)=r\dfrac{s_y}{s_x}$ , $\text{intercept}(b_0)=\bar{y}-b_1\bar{x}$

Given: $\bar{x}=8.8,\ s_x=1.5,\ s_y=1.8,\ \bar{y}=30.3,\ r=-0.84$

Then,

$b_1=(-0.84)\dfrac{ 1.8}{ 1.5}\\\\\Rightarrow\ b_1=-1.008$

Now,

$b_0=30.3-(-1.008)(8.8)=30.3+8.8704\\\\\Rightarrow\ b_0=39.1704$

Then, Regression line equation: $\hat{y}=-1.008x+39.1704$

6 0

3 years ago

Which equation represents a line which is parallel to y=0? x=−6 y=x-2 x=y y=2

lyudmila [28]

Answer:

X=-6

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is the slope of the line represented by the equation 6y-14x=5

ioda

Answer:

slope = $\frac{7}{3}$

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

rearrange 6y - 14x = 5 into this form

add 14x to both sides

6y = 14x + 5 ( divide all terms by 6 )

y = $\frac{14}{6}$ x + $\frac{5}{6}$ ← in slope- intercept form

with slope m = $\frac{7}{3}$ ← in simplest form

7 0

3 years ago

F(x) = 2x - 6, find f(10).

siniylev [52]

Answer:

Step-by-step explanation:

use the given functions to set up and simplify f (10).

6 0

4 years ago

Help!! Find the value of f(3)

nekit [7.7K]

Answer:

Step-by-step explanation:

Start with where it tells you the value of x. The value of x is 3. That's given by f(x) = f(3)

Next see which one of the functions you use. x > 0 is given by x^4 - 7. Since 3 is greater than zero you use x^4 - 7

f(3) means that wherever you see an x on the right side, you put a 3.

f(x) = x^4 - 7

f(3) = 3^4 - 7

f(3) = 81 - 7

f(3) = 74

5 0

3 years ago