Sarah bought a TV at a 15% discount. Later she found that there should have been a 20% discount, so the store gave her $17 back. What was the original price of the TV before it was discounted?

Answer:

The area of the shaded region is 6.88 cm ² (3.44+3.44)

Step-by-step explanation:

Area of the shaded part = Area of the square - Area of the two semi circles + overlapped yellow area

Area of the square = 4² = 16

r = 4/2 = r=2cm

Area of semicircle = πr²/2

Area of the semicircle =  π(2) ²/2

Area of one semicircle = 6.28 cm²

Area of two semi-circles = 2 * 6.28 cm²

Area of two semi-circles = 12.56 cm²

Area of the shaded region    = Area of a square - Area of two semicircles (plus overlapped area)

Area of the shaded region (minus overlapped area) = 16  cm² - 12.56  cm²

Area of the shaded region (minus overlapped area) =  3.44

Now we need to add the overlapping area of the 2 semicircles

Area overlapped yellow = 1

The other yellow area =2

White parts= S

The area of  2  semicircles  with side length 2 (half of 4)   is the same.

The area of the big quarter circle is π*2r*2r/4 = π*r², because its radius is twice as big as the small circles.

S =  area of each white  as  the area of the semicircles is:

π*r²/2 = I + S

So, the area of 1  = π*r²/2 - S. The area of the big quarter circle is:

π*r² = 1 + 2+ S + S

Subtract the area of a semicircle circle, and we have

π*r² - π*r²/2 = 1 + 2 + S + S - 1 - S

π*r²/2 = 2 + S

so 2 = π*r²/2 - S.

That means that the area of 1  and 2  are the same

Answer:

y +4= -3 ( x-3)

Step-by-step explanation:

The point slope form of a line is

y-y1 = m(x-x1)

The point requested is (3,-4)

y - -4= m ( x-3)

y +4= m ( x-3)

The slope of the line  is positive since it goes from the top left to the bottom right

The slope can be found from (0,5) and (3,-4)

m = (y2-y1)/(x2-x1)

    = (5 - -4)/(0-3)

    = (5+4)/(0-3)

    = 9/-3

    = -3

y +4= -3 ( x-3)

The slope in all answer choices is 3 or -3.

Since the line is going down, the slope is going to be negative (-3).

Point slope form: y - y1 = m(x - x2)

We are given a point in the question so use it to fill in the equation.

y + 4 = -3(x - 3)

Best of Luck!

Answer: 703.72 inches^3

Step-by-step explanation:

Volume = pi * r^2 * h/3

             = pi * 8^2 * 10.5/3

             = 64 pi * 3.5

             = 224 pi

             = 703.72 inches^3

Answer:

25 (c)

Step-by-step explanation:

Answer:

10

Take 10 and add it 5 times

Step-by-step explanation:

5 divided by 50 is 10

Step-by-step explanation:

ermm ok I'm not sure but I'll try,

3x=1

x=1/3

3x=216

x=216/3

x=72

72

Step-by-step explanation:

Answer:

x can be any real number, and y is the corresponding number according to the function y=3x+4

Step-by-step explanation:

We find the function first, by finding the slope.

Using this formula, m= (y1-y2)/(x1-x2)

= (31/4 - 25/4)/(5/4 - 3/4) = 3/2÷1/2 = 3

Now we can find the y-intercept by substituting it as b, and x and y as one of the points.

y=mx+b

25/4=9/4+b

b=4

And now you fill out the format, y=mx+b with your newfound values of m and b,

y=3x+4

From this function, you can input any real number (x) and get your corresponding value (y).

Answer:

48.1 somewhere around 36 and 57

Step-by-step explanation:

Answer:

36-57

Step-by-step explanation:

18.50 x 2.6 = 48.10, which is between those two numbers

Answer:

-4

Step-by-step explanation:

(1,-19) (-2, -7)

-19-(-7) = -12           -12 ÷ 3 = -4

1-(-2) =    3

Answer:

ARIA= LxH/2
A= 21x8/2 = 168/2=84cm

Step-by-step explanation:

Answer:

84cm

Step-by-step explanation:

AREA= LxH/2

A= 21x8/2 = 168/2=84cm

Answer:

D

Step-by-step explanation:

just multiply the three over four inches with seven and a half to get the accurate measurements

Answer:

utyਟਿਵ੍ਗਕ੍ਵਫਕ੍ਤੁਦ੍ਯੇਦਿਹਜ੍ਜੁਤ੍ਯੈਫ੍

Step-by-step explanation:

utyਟਿਵ੍ਗਕ੍ਵਫਕ੍ਤੁਦ੍ਯੇਦਿਹਜ੍ਜੁਤ੍ਯੈਫ੍ਰ gh ਗ੍ਯੁਯਜ੍ਕ੍ਜਗ੍

Answer:

1=y/x

Step-by-step explanation:

Because 1/4xy=x+1/4x=1=y/x

69.50 +(3 x 5) = 84.5

Note- It seems something is missing from this problem,I answered you other question you may want to look their for better explanation of the problem.

HOPE THIS HELPS & GOOD LUCK.

Answer:

70%

Step-by-step explanation:

Answer:

Or you could just solve for n and pick the choice that matches what you got :)

Step-by-step explanation:

Step-by-step explanation:

When adding fractions of different denominators, first find the LCM of the denominators, but she ignored that.

11/4+2/3

LCM=12

(33+8)/12

41/12

Answer:

The answer is (-14/9,0)

Step-by-step explanation:

Hope this helps!

Answer:

(-14/9,0)

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

The reason why is because the numbers are going by 2s if helped give brainliest have a good day!

Answer:

6x^2 + 8x

Step-by-step explanation:

the 2 is on top of x, so its squared

\(6x {}^{2} + 8x\)

Answer:

\(\text{Domain of}R_1=\{-2,0,2,4\}\)  and \(\text{Range of}R_1=\{-3,-1,0\}\)

\(\text{Domain of}R_2=\{-3,-1,0,3\}\)  and \(\text{Range of}R_2=\{-1,0,1,2,3\}\)

Step-by-step explanation:

Domain is the set of input values or x-values.

Range is the set of output values or y-values.

According to the relation mapping diagram, the relation is

\(R_1=\{(-2,-3),(-2,-1),(0,0),(2,0),(4,-3)\}\)

So,

\(\text{Domain of}R_1=\{-2,0,2,4\}\)

\(\text{Range of}R_1=\{-3,-1,0\}\)

In the graph 5 points are plotted. So, the relation is  

\(R_2=\{(-3,1),(-1,-1),(0,0),(3,2),(3,3)\}\)

So,

\(\text{Domain of}R_2=\{-3,-1,0,3\}\)

\(\text{Range of}R_2=\{-1,0,1,2,3\}\)

Answer: The answer is that the date is skewed left...

Step-by-step explanation: It's ironic, but if it's "heavier" on the left side, the data is right skewed, and vice versa.

Answer:

Step-by-step explanation:

3.1313109

Answer: the answer should equal 3.131

Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.

Please got brainliest