What is the slope of the line that passes through the points (-9, -7) and (-11, -6) Write your answer in simplest form.

Answer:

Loss

Step-by-step explanation:

It would be a loss because you bought them for 30$ but could only sale them for 25$ meaning you lossed 5$.

This means the price you bought them for changed 16.667% decrease.

Hope it helps have a great day:)

[tex]\\ \rm\rightarrowtail 2-sin^2x=2cos^2\left(\dfrac{x}{2}\right)[/tex]

[tex]\\ \rm\rightarrowtail 1+1-sin^2x=2cos^2\left(\dfrac{x}{2}\right)[/tex]

[tex]\\ \rm\rightarrowtail 1+cos^2x=2cos^2\left(\dfrac{x}{2}\right)[/tex]

[tex]\\ \rm\rightarrowtail cos^2x=2cos^2\left(\dfrac{x}{2}\right)-1[/tex]

[tex]\\ \rm\rightarrowtail cos^2x=cosx[/tex]

[tex]\\ \rm\rightarrowtail cosx=1[/tex]

[tex]\\ \rm\rightarrowtail x=n\pi[/tex]

As x lies in between 0 and 2π

Answer:

[tex]x=0,\dfrac{\pi}{2}, \dfrac{3\pi}{2},2\pi[/tex]

Step-by-step explanation:

Given equation:

[tex]2-\sin^2x=2 \cos^2(\frac{x}{2})[/tex]

Subtract [tex]2 \cos^2(\frac{x}{2})[/tex] from both sides:

[tex]\implies 2-\sin^2x-2 \cos^2(\frac{x}{2})=0[/tex]

Pythagorean identity

[tex]\sin^2x+\cos^2x =1[/tex]  

[tex]\implies \sin^2x =1-\cos^2x[/tex]

Substituting into the equation:

[tex]\implies 2-(1-\cos^2x)-2 \cos^2(\frac{x}{2})=0[/tex]

[tex]\implies 1+\cos^2x-2 \cos^2(\frac{x}{2})=0[/tex]

Cosine double angle identity:

[tex]\cos(2x)=2 \cos^2x-1[/tex]

[tex]\implies 2 \cos^2x=\cos(2x)+1[/tex]

Substituting [tex]\frac{x}{2}[/tex] for [tex]x[/tex]:

[tex]\implies 2 \cos^2(\frac{x}{2})=\cos(2\cdot\frac{x}{2})+1[/tex]

[tex]\implies 2 \cos^2(\frac{x}{2})=\cos x+1[/tex]

Substituting into the equation:

[tex]\implies 1+\cos^2x- (\cos x +1)=0[/tex]

[tex]\implies \cos^2x- \cos x =0[/tex]

Factoring:

[tex]\implies \cos x(\cos x- 1)=0[/tex]

Therefore,

[tex]\cos x=0[/tex]  

[tex]\implies x=\dfrac{\pi}{2}, \dfrac{3\pi}{2}[/tex]

and  [tex]\cos x-1=0[/tex]

[tex]\implies \cos x=1[/tex]

[tex]\implies x=0, 2\pi[/tex]

Answer:

Hello! :) I hope I’m correct!!

Step-by-step explanation:

I think (C) 30 is not a perfect square.

(A) 1 = perfect square

(B) 25 = perfect square

(C) 30 = NOT a perfect square

(D) 36= perfect square

{Note: The square root of 30 is not an integer, so therefore 30 is not a square number}

Since the question is asking to find a number that is NOT a perfect square...

The answer would be (C) 30

Hope this helps! If you have any questions about this, feel free to ask! Have a wonderful day! ^-^

~By, BrainlyAnime~ <3

Answer:

y= -7x+26

Step-by-step explanation:

not sure how to explain... just followed order of operations

Answer:

9

Step-by-step explanation:

1= 1x1x1 cubic

27=3x3x3 cubic

64=4x4x4 cubic

9 is not cubic

Answer:

Step-by-step explanation:

1x1x1=1³

3x3x3=27=3³

4x4x4=64=4³

Answer:

Falls to the left and rises to the right

Hope this helps!

Answer:

2

rate of change = change in y / change x

change in y = 8-4 = 4

change in x = 2-0 = 2

4 / 2 = 2

the answer is b bc the way the other 2 are

Step-by-step explanation:

its the pattern.

Answer:

0.6

Step-by-step explanation:

We can get the answer by subtracting the decimal by one.

2/5 = 0.4

1 - 0.4 = 0.6

Answer:

oranges $3.50 per Kg, bananas $3 per Kg

Step-by-step explanation:

let b represent cost of bananas and o represent cost of oranges , then

2b + 3o = 16.5 → (1)

o = b + 0.5 → (2)

substitute o = b + 0.5 into (1)

2b + 3(b + 0.5) = 16.5 ← distribute parenthesis on left side and simplify

2b + 3b + 1.5 = 16.5

5b + 1.5 = 16.5 ( subtract 1.5 from both sides )

5b = 15 ( divide both sides by 5 )

b = 3

substitute b = 3 into (2)

o = 3 + 0.5 = 3.5

cost of oranges = $3.50 and cost of bananas = $3

Answer:

A=½bh

20=5x(½)

multiply by reciprocal both sides

40=5x

divide

8=x

Answer: y = 3x + 5

............................

plz mark brainlest

Answer:C.45

Step-by-step explanation:

                         [tex]\Huge\boxed{Your\;answer\;is\;45.}[/tex]

___________________________________________________________

                                                  [tex]\boxed{Explanation}[/tex]

So, we have the following equation...

[tex]5^2+20=(?)[/tex]

Remember, 5² also means 5x5.

Therefore, [tex]5x5=25\\25+20=45[/tex]

This means your final answer is 45.

___________________________________________________________

Glad to help!

Could i possibly get brainliest?

[tex]\huge\boxed{Thanks,\;Plip.}[/tex]

= 65% x 140 = 91

65..............100

n.................140

n = 140 x 65 : 100 = 91

Answer: 628.32 inch cubed

Step-by-step explanation:

Formula for volume of a cone: 1/3 x area of base x height

Area of base: pi x radius squared

= pi x 10 squared

= 314.16

Now, 1/3 x 314.16 x 6

= 628.32

Answer:

Answer:

B

Step-by-step explanation:

[tex]Known\ by\ the\ graphic,\ r=\frac{1}{2}\bullet20=10,\ h=6[/tex]

[tex]V=\frac{1}{3}[/tex]π[tex]r^2[/tex]·h[tex]=200\pi\approx628[/tex]

[tex]So\ choose\ B.[/tex]

I hope this helps you

:)

Answer:

[tex]P(Red) = 0.125[/tex]

Step-by-step explanation:

Given

[tex]Red: 150[/tex]

[tex]White: 450[/tex]

[tex]Green: 225[/tex]

[tex]Blue: 375[/tex]

Required

Determine the probability of getting a red chair, next.

First, we nee the total number of chairs

[tex]Total = 150 + 450 + 225 + 375[/tex]

[tex]Total = 1200[/tex]

Probability of getting red is then calculated as thus;

[tex]P(Red) = Red/Total[/tex]

[tex]P(Red) = 150/1200[/tex]

[tex]P(Red) = 0.125[/tex]

Answer:

up and 2; down and 3

Step-by-step explanation:

hope this helps!! have an amazing day <3

The equation the function after the transformation is  g(x) = -4x² - 16

Transformations are changes done in the shapes on a coordinate plane by rotation, reflection or translation.

here, we have,

to determine the transformation of the function:

The equation of the function is given as

f(x) = x²+2

The sequence of transformations is given as follows:

Translate up by 2 units

Reflection across the x-axis

Vertically stretched by a factor of 4

When the above transformations are combined, we have:

Translate up by 2 units: g(x) = f(x) + 2

Reflection across the x-axis: g(x) = -(f(x) + 2)

Vertically stretched by a factor of 4: g(x) = -4(f(x) + 2)

So, we have

g(x) = -4(x²+2 + 2)

Expand

g(x) = -4x² - 16

Hence, the function g(x) is g(x) = -4x² - 16

Read more about transformation at

brainly.com/question/27224272

#SPJ7

Answer:

the gradient is -5/1 or -5 because it is a negative slope meaning you would go from top to bottom.

Step-by-step explanation:

mr clean

Answer:

-5

Step-by-step explanation:

The points through which the line passes are :-

(-1, 0) and (-2, 5)

Slope (m) = 5 - 0 / -2 + 1

= 5 / -1

= -5

Answer:

5 terms

to the fourth degree

leading coeff of 1

3 turning points

end behavior (when x -> inf, y -> inf. When x -> - inf, y -> -inf)

x intercepts are (0,-4) (0,-2) (0,1) (0,3)

Relative min: (-3.193, -25) (2.193, 25)

Relative max: (-0.5, 27.563)

Step-by-step explanation:

The terms can be counted, seperated by the + and - in the equation given.

The highest exponent is your degree.

The number before the highest term is your leading coeff, if there is no number it is 1.

The turning points are where the graph goes from falling to increasing or vice versa.

End behaviour you have to look at what why does when x goes to -inf and inf.

X int are the points at which the graph crosses the x-axis.

The relative min and max are findable if you plug in the graph on desmos or a graphing calculator.

Answer:

The answer to your question would be 20

Hope this helps!

Answer:

a)  Shelton’s total pay before deduction: 10.25x

b)  To meet savings goal he'll have to work 827.415869 hours.

Step-by-step explanation:

Take-home pay:

  10.25x − 0.21(10.25x)

  10.25x − 2.1525x

  8.0975x

Save 25% for new laptop:

  .25(8.0975x) = 1675

     2.024375x = 1675

     x = 827.415869 hours

Answer:

4x + 8y =12                        [inconsistent]

x + 2y = -3

x = 6                                   [inconsistent]

x = -2

2y = 5x + 6                          [inconsistent]

-10x + 4y = 8

x - 3y=2

4x - 12y = 8                          [dependent]

x+ 4y = 12                              [independent]

2x - 8y = 4

4x + 8y = -6                        [dependent]

6x + 12y = -9

4y - 2x = 6                            [inconsistent]

8y = 4x -12

y - x = 0                                [independent]

y = -x

2y - x = 4

1/2x - y = 2                            [inconsistent]

Step-by-step explanation:

Answer:

i'd give you my insta

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

answer choices a/b can be eliminated because it's increasing, and answer choice c can be ruled out because its a dramatic increase!

hope this helps!<3

Answer:

-2

Step-by-step explanation:

f(x) = 3x + k

f(4) = 10

f(4) = 3×4+k

10 = 12 + k

10-12 = k

k = -2

Answer: Mount Everest (8,848 m 29,029 ft) was first climbed, when the summit was reached by Edmund Percival Hillary

Answer: I got these correct 100%.

Step-by-step explanation:

First page:

1. True

2. True

3. True

4. True

5. False

6. True

7. False

Second page:

1.False

2.False

3.False

4.False

5.False

6.True

7.True

8.True