MATH!!!!!!!!!!! OVER HERE / At the beginning of March, a store bought a Halloween mask at a cost of $10 and marked it up 60%. At the end of the month, the Halloween mask had not sold, so the store marked it down 40%. What was the discounted price?

Answer:

x < 7

Step-by-step explanation:

3x - 9 < 12     add 9 for both sides.

3x < 21      divide both sides by 3.

x < 7.

Step-by-step explanation:

1:the range

2:positive interval

3:increasing interval

4:maximum point

5:domain

6:decreasing intveral

7: negative interval

Answer:

As per the graph we have:

1: the range

2: positive interval

3: increasing interval

4: maximum point

5: domain

6: decreasing interval

7:  negative interval

Answer:

The answer for this would be B.

1. m<C = 48°.

2. <X = <Y.

<ABD = <CDB = 62°

<BDA = <DBC = 70°

<DBC + <BCD + <CDB = 180°

70° + <BCD + 62° = 180°

132° + <BCD = 180°

<BCD = 180° - 132°

<BCD = 48°

m<C = 48°

The triangle is a right triangle. If ZX = ZY then <X = <Y

The answer is

[tex] \frac{55}{12} [/tex]

and in mix fraction it will be

[tex]4 \frac{7}{12} [/tex]

and in decimal form,

[tex]4.583333[/tex]

[tex]answer \: = 4 \frac{7}{12} [/tex]

5⅚ - 1¼ =

35/6 - 5/4 =

140/24 - 30/24 = 110/24 = 4 14/24 = 4 7/12

Answer:

18

Step-by-step explanation:

According to the numbers the both numbers have to be negative

subtracting a negative will be the same as addition and so thats why the difference is bigger.

now its time for guess and check.

-6+-5

-11

but -6-(-5)=-1

so lets try

-9+(-2)=-11

-9-(-2)=-7

yay

so the product is

(-9)*(-2)=18

Answer:

vertex is (-1,-1)

Step-by-step explanation:

2 ways

1. get into vertex form y=a(x-h)^2+k

2. use math hacks

1.

vertex is (h,k) in y=a(x-h)^2+k

complete square

y=(2x^2+4x)+1

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

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

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

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

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

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

vertex is (-1,-1)

2.hack way

in form y=ax^2+bx+c

x value of vvertex is -b/2a

given

y=2x^2+4x+1

b=4, a=2

xvaluevertex=-4/(2*2)

xvaluevertex=-4/4=-1

sub back to find y value

y=2(-1)^2+4(-1)+1

y=2(1)-4+1

y=2-4+1

y=-1

y value is -1

Answer:

(-1,-1)

Step-by-step explanation:

To find the x coordinate, we use the formular x = -b/2a where b=4 and a = 2 from the given function.

hence x = -(4)/2(2) = -1

then to get the y coordinate we substitute the value of x into the given function, so y = 2(-1)^2+4(-1)+1 = -1

therefore, the vertex is (-1,-1)

Answer:

B. srvut

Step-by-step explanation:

To name a polygon, or any shape, remember that you must name it so that each angle is in order. Basically, do not go from angle s to angle u, and instead go to angle stu or srvu.

Hope this helps :)

Answer:

x = 79 y = 22

Step-by-step explanation:

x would be the same as the other side so 79 * 2 would be 158. A whole triangle is 180. 180 - 158 = 22

Answer:

None

Step-by-step explanation:

None.  A unit cube has dimensions 1 by 1 by 1, so it could not contain a rectangle of dimensions 3 by 1 by 1.

Answer:

62.5

Step-by-step explanation:

Answer:

The correct answer is C. 27 ft, 45 ft, 63 ft.

Step-by-step explanation:

Given that the ratio of the measures of the sides of a triangle is 3: 5: 7, and its perimeter is 135 feet, in order to find the measure of each side of the triangle, the following calculation must be performed:

3 + 5 + 7 = 15

135/15 = 9

9 x 3 = 27

9 x 5 = 45

9 x 7 = 63

Therefore, the measures of the sides of the triangle are 27 ft, 45 ft, and 63 ft.

Answer:

The side of the hypotenuse is 12.233 centimeters.

Step-by-step explanation:

The triangle presented in the figure represents a right triangle, we know an angle and a leg adjacent to such angle and we need to determine the length of the hypotenuse, which is found by this trigonometric relation:

[tex]\cos 56^{\circ} = \frac{7.4\,cm}{x}[/tex] (1)

Where [tex]x[/tex] is the length of the hypotenuse, measured in centimeters.

Then, we clear the variable within (1):

[tex]x = \frac{7.4\,cm}{\cos 56^{\circ}}[/tex]

[tex]x = 13.233\,cm[/tex]

The side of the hypotenuse is 12.233 centimeters.

Answer:

6ft

Step-by-step explanation:

Answer:

706.858347058

Step-by-step explanation:

equation- 4pi(r)^2

Answer:

15 in2

Step-by-step explanation:

3.14 * 15 m=15 in^2

Answer:

Number of dogs (x) | Amount charged to walk a dog (y)

1 | 20

2 | 40

3 | 60

4 | 80

5 | 100

6 | 120

7 | 140

8 | 160

Step-by-step explanation:

Charge for walking a dog = $20 per dog

Number of dogs = x

Amount charged to walk a dog in a day = y

Unit rate = 20

Equation to represent this is: y = 20x

Let's use this to form a table for walking 1 to 8 dogs:

For 1 dog (x):

y = 20(1) = $20

For 2 dogs (x):

y = 20(2) = $40

For 3 dogs(x):

y = 20(3) = $60

For 4 dogs:

y = 20(4) = $80

And so on till we get to tl8 dogs.

This, we should have the following table:

Number of dogs (x) | Amount charged to walk a dog (y)

1 | 20

2 | 40

3 | 60

4 | 80

5 | 100

6 | 120

7 | 140

8 | 160

Answer:

60°

Step-by-step explanation:

the relationship between angle RST and its arc TR is:

2m∠(RST)=m(arcTR);

using this formula m∠(RST)=0.5*m(arcTR);

m∠(RST)=60°

Answer:

<S = 60

Step-by-step explanation:

The arc TR and the central angle (T to the center then to R ) are equal.

So the Central angle is 120o

S anywhere on the minor arc is 1/2 the central angle.

<S = 1/2 120

<S = 60

Answer:

SA=78.5

Step-by-step explanation:

Find the area to all visible sides. 4*2.5=10, 10*2 (because there is two of these shapes) is 20. 4.5*4=18, 18*2=36. Finally, 4.5*2.5=11.25, 11.25*2=22.5.

20+36+22.5=78.5

Answer:

62.83 inches

Step-by-step explanation:

This video is better than any explanation i can give to help remember how to find the circumference of a circle: https://youtu.be/9WGO7dAxjD8

Answer:

13 and 14

Step-by-step explanation:

From the inequality

x + 2 x + 6 < 50

we work out the answer for x isolating it on one side of the inequality as shown below

3 x + 6 < 50

3 x < 50 - 6

3 x < 44

x < 44/3  ≅ 14.6666...

Therefore, select from the set the numbers:  13 and 14.

Answer:

11 dimes 20 nickels

Step-by-step explanation:

Only combo that makes $2.10

Answer:

-10/7

Step-by-step explanation:

y=kx+2 (-7, 12)

12=k(-7)+2

12=-7k+2

-7k=12-2

-7k=10

k=10/-7

Answer:

a...

associative property

Step-by-step explanation:

trust me

Answer:

it is A.

Step-by-step explanation:

hope this helps!

Answer:

Step-by-step explanation:

You can tell by looking at the form of each equation.

y = tx

This is a straight line that passes through the origin, so it symmetric with respect to the origin.

y = x²+1

This is an up-opening parabola with vertex at (0,1), so it is symmetrical about the y-axis.

y = x²+x = (x+½)² - ¼

This is an up-opening parabola with vertex at (-½,-¼). Not symmetrical to either axis nor to the origin.

Can't tell what "y = (1 + x2)3" means. Which terms are exponents?

33.85 or 32.75 sorry if I am wrong

Step-by-step explanation:

for this one you have you multiply 17 by itself like this 17x17=289 but you also have to do it with the 28 to like this 28x28=784, now what you do it add up the 289+784=1,073 then you square root 1,073 which gives you 32.75 round it to the nearest tenth of needed so your will be between 33.85 or 32.75

Answer:

B

Step-by-step explanation:

So for the first square we Have ab*a

When you multiply variables then you add up their powers so b^1a^1+a^1= (a^2)(b^1)

Second box is -3 * a which is equal to -3a

third box is 2b * ab = 2ab^2

fourth box is -3 *2b = -6b

Answer:

Step-by-step explanation:

Solve for x=0 and x=1

y(0)=2(3^0)=2(1)=2 so (0,2) is a point.

y(1)=2(3^1)=2(3)=6 so (1,6) is a point.

Only graph B has those two points.

Answer:

8 up, 6 left

Step-by-step explanation:

Locate any point from triangle A and go up 8 steps to get on the same level as triangle A'. Then, move to the left 6 steps.

The graph translated 6 unit left and 8 unit upward.

A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.

Given, A figure "A" that translated at different position in cartesian plane.

Since,  A translation is when a geometric figure slides up, down, left or right on the coordinate plane. The figure moves its location, but doesn't change its orientation. It also doesn't change its size or shape.

Thus, we can observe only one point on the figure and calculate the movement of the figure.

Lets focus on the left bottom corner of the figure.

It moves from the coordinates (1, -5) to the coordinates ( -5, 3)

Since Horizontally translating a graph is equivalent to shifting the base graph left or right in the direction of the x-axis

So, we can say it translated to the lefty by 6 unit.

Same it goes with vertical translation.

Therefore, The graph translated 6 unit left and 8 unit upward.

Learn more about coordinates here:

https://brainly.com/question/20282507

#SPJ2

Answer:

2x2-12x+3

Step-by-step explanation:

(x2-7x+4)-(-x2+5x+1)

x2-7x+4+x2-5x-1

2x2-12x+3