Hi

The following set of four ordered pairs below defines the vertices, in counterclockwise order, of a quadrilateral (four-sided figure).
((-4, 1), (1, 2), (-1,6).(-6,5)}
Step 1 of 3: Find the slopes of the indicated sides of the quadrilateral. Simplify your answer.

Side connecting (-4,1) and (-6,5)
Side connecting (1, 2) and (-1,6)
G
7
a
Suba

Answer:

The square root of 50 is approximately 7.07.

Answer:

7.07106781187...

Step-by-step explanation:

its an irrational number

Step-by-step explanation:

your teacher even wrote all the formulas there.

you have all numbers.

so, all that is left is to take the calculator and type things in.

so, what was your problem here ?

I cannot tell you much more than what is written in your question already.

the only thing : the radius (needed in the formula) is half of the diameter.

so,

V = 4/3 × pi × r³ = 4/3 × pi × (16/2)³ = 4/3 × pi × 8³ =

= 4/3 × pi × 512 = 2048/3 × pi = 2,144.660585... ft³ ≈

≈ 2,144.7 ft³

To find the fraction of pocket money left after spending on transport and fruit, we need to subtract the amount spent from the total pocket money and express it as a fraction.

The student spends 18 out of 35 of his pocket money, which means he has (35 - 18) = 17 units of his pocket money left.

Therefore, the fraction of pocket money left can be written as 17/35.

Answer:

2F /r = m

Step-by-step explanation:

F=1/2 mr

Multiply each side by 2

2F = 2*1/2 mr

2F = mr

Divide each side by r

2F/r = mr/r

2F /r = m

Answer:

it's 15

Step-by-step explanation:

just do ( 5× 2) = (10+5)=15

Answer:

\(Area = 72\)

Step-by-step explanation:

From the attachment, we can see that the floor has a trapezium shape with the following dimensions.

\(Height = 6yd\)

The parallel sides (P1 and P2) are:

\(P_1 = 10 + 4 = 14\)

\(P_2 = 10\)

The square yard needed to cover the floor is the area of the trapezium surface and this is calculated as follows:

\(Area =\frac{1}{2} * (Sum\ of\ parallel\ sides) * Height\)

\(Area =\frac{1}{2} * (P_1 + P_2) * Height\)

\(Area = \frac{1}{2} * (10 + 14) * 6\)

\(Area = \frac{1}{2} * (24) * 6\)

\(Area = 12 * 6\)

\(Area = 72\)

Hence, 72 square yards is needed to cover the floor

Answer:

r=5.2

Step-by-step explanation:

Answer:

5.2

Step-by-step explanation:

I used a calculator

Could I have a brainliest pls

Answer:

Question

Step-by-step explanation:

"where do you get all the journals and letters" is a question that was asked by Stevens

Answer: B

Step-by-step explanation:

Step-by-step explanation:

well, you put the input term into the place of the original variable (as with any actual constant value) :

f(4x-1) = 2(4x-1) - 5 = 8x - 2 - 5 = 8x - 7

we could call this now g(x) (= f(4x - 1)).

Answer:

7h+1=29 is equal to 7 x 4 + 1=29

Step-by-step explanation:

We know that 7 times 4 = 28. So the value of h is 4. And of course, you add the one.

a. The graph represents a proportional relationship.

b. The graph does not represent a proportional relationship.

c. The graph does not represent a proportional relationship.

d. The graph represents a proportional relationship.

A proportional relationship is a relationship in which a constant ratio between the output variable and the input variable exists.

The equation that defines the proportional relationship is a linear function with slope k and intercept zero presented as follows:

y = kx.

Hence graphs a and d represent proportional relationship, as they have intercepts at the origin.

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Answer:

no

Step-by-step explanation:

it has no number behind it so it is just 12 which is a integer

Answer:

Amelia is correct.

According to Google, an integer is a whole number, not a fraction. Therefore, she is correct.

Similarity ratio is also called the scale factor and is defined by the ratio of the lengths of the sides in two similar polygons:

Answer: 33.5

Step-by-step explanation:

the answer is: 58.95

i took the test

Answer:

PD = 95%

Step-by-step explanation:

(2,000 - 100) / 2,000       times 100

( (original - new) ) / original     times 100

=  1,900 / 2,000    times 100

=  0.95 times 100

=  95% decrease

Step-by-step explanation:

There were 0-5 Listeners when the song was released.

The approximate number of listeners who had heard the song after the hour 5 was 15- below 50

The number of listeners was about 29,458 after hour 5842.62/

Alternative forms

Y= 4,637(1.26)ˣ

292131/50,5842,31/50,5.84262 =10³

5842.62

Including polynomial components, such as squared or cubed predictors, is the most popular technique to fit curves to data using linear regression. Typically, the model order is determined by the number of bends required in your line. Each exponent increment causes one additional bend in the curved fitting line.

Curve of Best Fit: a scatter plot curve that best approximates the trend. If the data looks to be quadratic, we use quadratic regression to get the equation for the best-fit curve. We do a cubic regression if it looks to be cubic.

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Answer:

The cost can be written as:

C(x) = $1.4*x

The revenue can be written as:

R(x) = $700 - $400*e^(-x/100)

And as you know, the profit is written as the difference between the revenue and the cost:

P(x) = R(x) - C(x)

P(x) =  $700 - $400*e^(-x/100) - $1.4*x

Now we want to maximize this, then we must look at the zeros in the derivate of P(x)

dP/dx = P'(x) = (-1/100)*$400*e^(-x/100) - $1.4

The maximum will be when P'(x) = 0.

we can solve:

0 = (-1/100)*$400*e^(-x/100) - $1.4

$1.4 = (-1/100)*$400*e^(-x/100)

(-100)*$1.4 = $400*e^(-x/100)

$140 = $400*e^(-x/100)

($140/$400) = e^(-x/100)

0.35 = e^(-x/100)

Now we can apply the Ln() in both sides and get:

ln(0.35) = ln(e^(-x/100) ) = -x/100

-ln(0.35)*100 = x = 104.98

You should apply 104.90 pounds of fertilizer.

b) The profit per acre, is:

P(x) = $700 - $400*e^(-x/100) - $1.4*x

Then if you have 200 acres, the profit will be:

200*P(x) = 200*($700 - $400*e^(-x/100) - $1.4*x)

and the maximum profit is whit x = 104.98 pounds, then:

200*P(104.98) = 200*($700 - $400*e^(-104.98/100) - $1.4*104.98) = $82,604.98

Answer:

No option is correct

Step-by-step explanation:

As they are written, none of them is equivalent to 3/-5

Hope this helps

Answer:

Step-by-step explanation:

Let x be a random variable representing the number of guesses made for the sat questions.

Since the probability of getting the correct answer to a question is fixed for any number of trials and the outcome is either getting it correctly or not, then it is a binomial distribution. The probability of success, p = 0.2

Probability of failure, q = 1 - p = 1 - 0.2 = 0.8

the probability that the number x of correct answers is fewer than 4 is expressed as

P(x < 4)

From the binomial distribution calculator,

P(x < 4) = 0.97

keeping in mind that parallel lines have exactly the same slope, let's check for the slope of the equation above

\(3x+y=5\implies y=\stackrel{\stackrel{m}{\downarrow }}{-3}x+5\qquad \impliedby \qquad \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}\)

so we're really looking for the equation of a line that has a slope oif -3 and it passes through (2 , -4)

\((\stackrel{x_1}{2}~,~\stackrel{y_1}{-4})\hspace{10em} \stackrel{slope}{m} ~=~ - 3 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-4)}=\stackrel{m}{- 3}(x-\stackrel{x_1}{2}) \implies y +4 = - 3 ( x -2) \\\\\\ y+4=-3x+6\implies {\Large \begin{array}{llll} y=-3x+2 \end{array}}\)

now, keeping in mind that perpendicular lines have negative reciprocal slopes

\(\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{ -3 \implies \cfrac{-3}{1}} ~\hfill \stackrel{reciprocal}{\cfrac{1}{-3}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{1}{-3} \implies \cfrac{1}{ 3 }}}\)

so for this one, we're looking for the equation of a line whose slope is 1/3 and it passes through (2 , -4)

\((\stackrel{x_1}{2}~,~\stackrel{y_1}{-4})\hspace{10em} \stackrel{slope}{m} ~=~ \cfrac{1}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-4)}=\stackrel{m}{ \cfrac{1}{3}}(x-\stackrel{x_1}{2}) \implies y +4 = \cfrac{1}{3} ( x -2) \\\\\\ y+4=\cfrac{1}{3}x-\cfrac{2}{3}\implies y=\cfrac{1}{3}x-\cfrac{2}{3}-4\implies {\Large \begin{array}{llll} y=\cfrac{1}{3}x-\cfrac{14}{3} \end{array}}\)

The standard deviation of a sample is the square root of the variance

The sample is given as: 11, 6, 10, 6, and 7

Start by calculating the mean

\(\bar x = \frac{\sum x}{n}\)

So, we have:

\(\bar x = \frac{11+ 6+ 10+ 6+ 7}{5}\)

\(\bar x = 8\)

The variance is then calculated as:

\(\sigma^2 = \frac{\sum(x - \bar x)^2}{n -1}\)

This gives

\(\sigma^2 = \frac{(11 - 8)^2 + (6 - 8)^2 + (10 - 8)^2 + (6 - 8)^2+(7 - 8)^2}{5 -1}\)

\(\sigma^2 = 5.5\)

Hence, the variance is 5.5

In (a), we have:

\(\sigma^2 = 5.5\)

Take the square roots of both sides

\(\sqrt{\sigma^2} = \sqrt{5.5\)

\(\sigma = 2.35\)

Hence, the standard deviation is 2.35

Read more about variance and standard deviation at:

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Answer:

145

Step-by-step explanation:

vertically opposite angles

Answer:

145°

Step-by-step explanation:

ANGLE DBE= ANGLE ABC

ANGLE DBE=145°

REASON= VERTICALLY OPPOSITE ANGLE

HOPE IT HELPS:)

Answer:

x = 27 , ∠ EAF = 27°

Step-by-step explanation:

∠ GAF = 90° , then

∠ GAC + ∠ CAF = ∠ GAF , that is

x + 63 = 90 ( subtract 63 from both sides )

x = 27

∠ DAE = 90°

since CD is a straight angle of 180° , then

∠ CAE = 90° , so

∠ CAF + ∠ EAF = ∠ CAE , that is

63° + ∠ EAF = 90° ( subtract 63° from both sides )

∠ EAF = 27°

Answer:

The second table, the table in the middle.

Step-by-step explanation:

Since the x-values of all the tables differ by 1, the difference between the y-values must be constant in order for the table to be linear. In second table, the different between the first and second y-value (from top to bottom) is 3, however the difference between the second and third and third and fourth values are 1.5, which is not constant. Therefore, the second table is nonlinear.

Answer:

C

Step-by-step explanation:

i assume its
C.

Answer:

Expression Derivatives

y = tan-1(x / a) dy/dx = a / (a2 + x2)

y = cot-1(x / a) dy/dx = - a / (a2 + x2)

y = sec-1(x / a) dy/dx = a / (x (x2 - a2)1/2)

y = cosec-1(x / a) dy/dx = - a / (x (x2 - a2)1/2)

The equation that should be used to determine the time at which the height of the projectile reaches 20 ​ft is

t = {60 ± √(3600 - 1280)}/32

Given is that a projectile is launched vertically upward from the ground with an initial velocity of 60 ft per​ sec, then neglecting air​ resistance, its height s​ (in feet) above the ground t seconds after projection is given by S = - 16t² + 60t.

For the height of {S} = 20 ft, we can write the equation as -

S = - 16t² + 60t

- 16t² + 60t = 20

16t² - 60t + 20 = 0

t = {60 ± √(3600 - 1280)}/32

Therefore, the equation that should be used to determine the time at which the height of the projectile reaches 20 ​ft is

t = {60 ± √(3600 - 1280)}/32

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Answer:

13. 1/4x

14. -2/4x or -1/2x

15 1/3x or 2/6x

16. Zero

Step-by-step explanation:

13. goes up once and goes to the side 4 times

14. goes down twice and goes to the side 4 times

15. goes up one time and three to the side

16. zero slope, the line is horizontal

Answer:

13. 1/4

14. -1/2

15 1/3

16. Zero

Step-by-step explanation: