Which of these r-values represents the weakest correlation.​

Answer:

             [tex]\bold{m=\dfrac15}[/tex]

Step-by-step explanation:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}\\\\(-2,\,2)\ \implies\ x_1=-2\,,\ y_1=2\\(3,\,3)\ \implies\ x_2=3\,,\ y_2=3\\\\m=\dfrac{3-2}{3-(-2)}=\dfrac{1}{3+2}=\dfrac15[/tex]

Answer:

y=4x

Step-by-step explanation:

this is because all other systems are defined and can be solved simultaneously...

pls lime and follow me ...i follow back...thanks

Answer: 18.96 km/h

Step-by-step explanation:

Gwen:

65 miles = 104.6 km

104.6 km / 2.5 h  =   41.84 km/h

Bryn:

15 min = 0.25 h

76 km / 1.25 h  =  60.8 km/h

Difference:

60.8 - 41.84 = 18.96 km/h

Hope this helps!

Answer:

Point Form:

( − 46 /3 , − 44 /3 )

Equation Form:

x = − 46 /3 ,  y = − 44 /3

Step-by-step explanation:

Combine  1 /2 and  x .

y = x /2 − 7

2 x − y = − 16

Replace all occurrences of  y  in  2 x − y = − 16  with  x /2 − 7 .

y = x /2 − 7

2 x − ( x /2 − 7 ) = − 16

 Simplify  

2 x − ( x /2 − 7 ) .

y = x /2 − 7

3 x /2 + 7 = − 16

Solve for  

x

in the second equation.

y = x /2 - 7

x = − 46 /3

Replace all occurrences of  x  in  y = x /2 − 7 with  − 46 /3 .

y = − 46 /3 /2 − 7

x = − 46 /3

Simplify  − 46 /3 /2 − 7 .

y = − 44 /3

x = − 46 /3

The solution to the system of equations can be represented as a point.

( − 46 /3 , − 44 /3 )

The result can be shown in multiple forms.

Point Form:

( − 46 /3 , − 44 /3 )

Equation Form:

x = − 46 /3 ,  y = − 44 /3

Answer:

7th term.

Step-by-step explanation:

The given series is

[tex]\log 3+\log 9+\log 27+\log 81+...[/tex]

We need to find the number of term log 2187.

Here, terms inside the log are 3, 9, 27, 81, ... are in G.P.

First term = 3

Common ratio [tex]=\dfrac{9}{3}=3[/tex]

nth term of a G.P. is

[tex]a_n=ar^{n-1}[/tex]

where, a is first term and r is common ratio.

[tex]2187=3(3)^{n-1}[/tex]

Divide both sides by 3.

[tex]729=(3)^{n-1}[/tex]

[tex]3^6=(3)^{n-1}[/tex]

On comparing both sides, we get

[tex]n-1=6[/tex]

[tex]n=7[/tex]

Since 7th term of the G.P. 3, 9, 27, 81, ... is 2187, therefore, 7th term of [tex]\log 3+\log 9+\log 27+\log 81+...[/tex] is log 2187.

Answer: 250 metre

Step-by-step explanation:

The radius of the semi circle will be:

Radius r = diameter/ 2

Where diameter = 140

r = 140/2 = 70m

The radius is also equal to the width of the diameter.

Find the quarter of the circumference of a circle.

Circumference of a circle = 2πr

Substitute for r in the formula

Circumference = 2 × 22/7 × 70

Circumference = 44 × 10 = 440 m

Divide the circumference by 4

440/4 = 110 m

The perimeter P of the shaded region will be

P = 110 + 70 + 70

Perimeter = 250 m

Therefore, the perimeter of the shaded region is 250 m

Answer: A  there are equivalent.

Step-by-step explanation:

f(x) = [tex]\sqrt{16}^x[/tex]  reduces to  f(x)=[tex]4^{x}[/tex]  

g(x)= [tex]\sqrt[3]{64}^{x}[/tex]   also reduces to g(x) = [tex]4^{x}[/tex]  

The function g(x) equal to f(x).

A quantity representing the exponent to which a given number or letter is to be raised is usually expressed as a raised symbol beside the number or letter. It is expressed as aˣ is a variable and a is constant.

Given are two functions, f(x) = √16ˣ and g(x) = ∛64ˣ,

We need to find the relation between the function,

So,

√16 = 4

∛64 = 4

Functions can be written as, f(x) = 4ˣ and g(x) = 4ˣ,

It is clear that g(x) equal to f(x) because g(x) is having power equal than f(x).

Thus, It is clear that g(x) is equal to f(x).

More about the exponent link is given below.

brainly.com/question/5497425

#SPJ7

Answer: 6 feet to 8 feet

Step-by-step explanation: 6x4=24 8x6=48

Answer:

9

Step-by-step explanation:

This equation is in slope intercept form

y = mx+b where m is the slope and b is the y intercept

y = 9x+5

The slope is 9

Parallel lines have the same slope so a line parallel would have a slope of 9

Answer:

i think the slope is 9.

because y= 9x+5 is in the form of slope intercept form.

as y=mx + c (where m is the slope of the equation.)

therefore, the slope (m )= 9....ans

hope it helps....

Answer:

Yes.

Step-by-step explanation:

The angles of the triangles add up to be 180. 180 - 114 - 31 = 35. 180-114-35 = 31. Since the angles of the triangles correspond and are congruent, the triangles are similar, with PQR corresponding to TUS.

Hope this helps !

Answer:

No less than 42 lessons

Step-by-step explanation:

To find the total numbers of hours needed to teach, divide the total amount of money needed by the amount of money made an hour.

$894.60/$21.30 = 42

Answer:

Negative integer(-)

Step-by-step explanation:

She has to give $45 but she has only $28.

That means

=28-45

= -17

Answer:

Step-by-step explanation:

For this problem, we have to use Heron's Formula.

S= (a + b + c)

     over 2

And then  √S( S-a) (S-b) (S-c)

That's the formula, now to plug in the numbers.

S= 12+12+21.2

      over 2

that equals 45.2/ 2= 22.6'

Now we found s, so we can plug in the second step of the formula...

√22.6 ( 22.6 - 12 ) ( 22.6 - 12 ) ( 22.6 - 21.2 )

This equals √ 22.6 (10.6) (10.6) (1.4)

and that equals...

59.624411 = or rounded it up to 60.

Answer:

A. 120 degrees.

Step-by-step explanation:

The two angles are alternate angles, which means they are congruent. So, x is also 120 degrees.

Hope this helps!

Answer:

A. -4c^2+4c+6

Step-by-step explanation:

2+7c-4c^2-3c+4

-4c^2+7c-3c+4+2

-4c^2+4c+6

Answer:

             [tex]\bold{y+5=\frac57(x-8)}[/tex]

Step-by-step explanation:

[tex]y-y_1=m(x-x_1)[/tex]      - point-slope form of Equation of the Line

[tex](8,-5)\ \ \implies x_1=8\,,\ y_1=-5\\\\m=\frac57\\\\equation:\\{}\qquad\qquad y-(-5)=\frac57(x-8)\\\\{}\qquad\qquad y+5=\frac57(x-8)[/tex]

Answer:

  = -2x/ ( x^2+5) ^2

Step-by-step explanation:

y = 1/ ( x^2 +5)

y = ( x^2+5) ^ -1

dy/dx = -1 * (x^2 + 5) ^-2  * d/dx  (x^2 + 5)

          -1 * (x^2 + 5) ^-2  * 2x

           = -2x/ ( x^2+5) ^2

Answer:

The first table; the first column is labeled x with entries 1, 2, 3, 4. The second column is labeled y with entries 16, 8, 4, 2.

Step-by-step explanation:

Exponential decay means that the graph or table is exponentially decreasing. Meaning, if you went from point 4 to 1, you would see an exponential increase. Other tables show other forms of functions, such as quadratic, or linear. To find out which rate it is decaying by, ask yourself, at 0, what is the y output? You can then divide the output of 0 by 1, and so on. If it is decaying at a consistent rate, then you know it is exponential. If you do not need to divide, but know it is decaying at a rate of two, it is linear. If it does not divide the first time smoothly, it is quadratic. It could also be a number of things.

I hope this helps you. We studied this quite a while ago, and I do not remember the equation at the tip of my tongue, and I do not want to give you wrong information. Have a great rest of your day!

Answer:

the 1s options

1 16

2 8

3 4

4 2

Step-by-step explanation:

Answer: B.) 84°

Step-by-step explanation:

Given the following :

Radius of circle(r) = 15cm

π = 22/7

Length of arc (L) = 22cm

The length of an arc is calculated using :

Length (L) = (Θ / 360) × 2πr

22 = (Θ / 360) × 2 × 22/7 × 15

22 = Θ × 660 / (360 * 7)

22 = Θ × 660 / 2520

Θ × 660 = 22 × 2520

Θ = 55440 / 660

Θ = 84°

Answer:

f

Step-by-step explanation:

f

Answer:

[tex]\boxed{AB = 9}[/tex]

Step-by-step explanation:

AB = 2(AC) {Because a line segment drawn from a center of a circle bisect the chord opposite to it}

So,

AB = 2(4.5)

AB = 9

Answer: 10

Step-by-step explanation:

-2(-3)+4=f(x)

6+4=f(x)

10=f(x)

Hope it helps <3

Answer:

10

Step-by-step explanation:

We are given:

f(x)= -2x+4

and told to find f(x) when x= -3

X is equal to -3, therefore we can substitute -3 in for x.

f(x)= -2x+4 when x= -3

f(-3)= -2(-3)+4

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

First, multiply -2 and -3. Multiplying 2 negative numbers makes a positive number.

f(-3)= 6+4

Add 6 and 4

f(-3)=10

When x= -3, f(x) is 10

Answer:

Initial number of trees (t)=204

Step-by-step explanation:

t = initial number of trees

Subtract 5 trees from the initial number of trees

we have,

t-5

each remaining tree made 210 oranges for a total of 41,790 oranges

We have,

(t-5) * 210=41790

Solve the equation

(t-5) * 210=41790

Open the bracket

210t-1050=41790

210t=41790+1050

210t=42840

Divide both sides by 210

210t/210=42840/210

t=204

The initial number of trees on MacDonald farm orange trees (t)=204

If 5 is removed from the initial trees

t-5=204-5

=199 trees

199 trees produce 210 oranges

We have,

199*210=41790 oranges

Answer:

Equation: 210t - 1050 = 41790

204 orange trees

Step-by-step explanation:

answer is from khan academy

pls brainliest :|

Answer:

2/7

Altogether there're 7 marbles. Let,probability of getting blue and red marbles be 'B' and 'R' respectively.

In 1st pick

Probability of getting red marble is 4/7

So, there's the probability that the ball in 1st pick may be either blue or red.

So,if the marble is red then we've to eliminate that red marble ( cause,question says so)

Then,in 2nd pick

Probability of getting red ball will be 3/6(if we eliminate that red ball then the total number of marbles will also be 6)

Now,

Probability of getting two red will be

(4/7)×(3/6)

=2/7

It would be more easier to do by tree diagram. Since,I didn't find it convenient here,it may be not so much helpful.But, I tried my best. Hope you are clarified.

Answer:

[tex]\boxed{\sf \ \ \ x=2 \ \ y=3 \ \ \ }[/tex]

Step-by-step explanation:

Hello, we have two equations and two unknowns

(1) 4x = -3y + 17

(2) 3x - 4y = -6

We can solve them algebraically

for instance from (1) we can divide by 4 and then write

(1') [tex]\dfrac{4x}{4}=x=\dfrac{-3y+17}{4}[/tex]

and then replace this expression of x in (2) it comes

[tex]3*\dfrac{-3y+17}{4}-4y=-6 \ \ \ multiply \ by \ 4 \\<=> -3*3y+3*17-4*4y=-6*4\\<=> -9y+51-16y=-24 \ \ \ substract \ 51\\\\<=> -25y=-24-51=-75 \ \ \ divide \ by \ -25\\<=> y = \dfrac{75}{25}=3[/tex]

and then

[tex]x=\dfrac{-3*3+17}{4}=\dfrac{-9+17}{4}=\dfrac{8}{4}=2[/tex]

we can solve it graphically as well

we just need to graph the two lines and find the intersection point as shown below

hope this helps

Answer:

97

Step-by-step explanation:

the shape leans a little so it's more than 90

Answer:

Step-by-step explanation:

Given expression is,

[tex]\text{cot}A=\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})[/tex]

To prove this identity we will take the right side of the identity,

[tex]\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})=\frac{1}{2}(\frac{1}{\text{tan}\frac{A}{2}}-tan\frac{A}{2})[/tex]

                         [tex]=\frac{1}{2}(\frac{1-\text{tan}^2\frac{A}{2}}{tan\frac{A}{2}})[/tex]

                         [tex]=\frac{1}{2}[\frac{2(1-\text{tan}^2\frac{A}{2})}{2tan\frac{A}{2}}][/tex]

                         [tex]=\frac{1}{2}(\frac{2}{\text{tan}A} )[/tex] [Since [tex]\text{tan}A=\frac{2\text{tan}\frac{A}{2}}{1-\text{tan}^2\frac{A}{2}}[/tex]]

                         = cot A

Hence right side of the equation is equal to the left side of the equation.

Answer:

0.625 gallons

Step-by-step explanation:

1 gallon = 4 quarts

2 gallons = 2 × 4 quarts = 8 quarts

She used  = 5 quarts

Usage of paint the front porch swing =  quart = 0.5 quart

used paint = 5 + 0.5 = 5.5 quarts

subtract used paint by starting amount

paint that was not used= 8 quarts - (5.5 quarts) = 2.5 quarts.

used green paint is 2.5 quarts or 0.625 gallons.

Answer:

The problems with same answers are:

(a, 4), (b, 3), (c, 1), (d, 5) and (e, 2).

Step-by-step explanation:

The two sets of problem are as follows:

    Set 1                           Set 2          

a. 36·4+36·9                 1. (8+2)·19

b. 17·(18−15)                2. 11·(14+6)

c. 8·19+2·19                 3. 17·18−17·15

d. (26−18)·6                  4. 36·(4+9)

e. 11·14+11·6               5. 26·6−18·6

The matched pairs are as follows:

a. 36·4+36·9 = 36·(4 + 9) → 4. 36·(4+9)

b.17·(18−15) = 17·18−17·15 → 3. 17·18−17·15

c. 8·19+2·19 = (8 + 2)·19 → 1. (8+2)·19

d. (26−18)·6 = 26·6−18·6 → 5. 26·6−18·6

e. 11·14+11·6 = 11·(14+6) → 2. 11·(14+6)

Thus, the problems with same answers are:

(a, 4), (b, 3), (c, 1), (d, 5) and (e, 2).