please help me i got points

Answer:

8. if he drove at a constant speed and made it 585 miles in 13 hours then first you 585/13 which gives you 45 miles an hour then you divide 810/45 to see how many hours that took and that would be 18 hours.

9. 1.20/8 is 0.15 and 0.15 times 17 is 2.55 then thats the cost of a 17 min call

Step-by-step explanation:

Answer:

This is for your online exam, neither why are you taking help from here, make it yourself

Answer:

yes, it is correct. Why weren't you sure?

Answer:

1. 452.16 square centimeters

2. 150.72 square centimeters

3. 25.12 centimeters

Step-by-step explanation:

1. the area of the circle

The area of a circle can be calculated with:

[tex]a=\pi r^2[/tex]

The area of the given circle then, is:

[tex]a=\pi 12^2\\a=144\pi\\[/tex]

or just 452.16 square centimeters.

2. the area of the minor sector

There's a convenient formula for this, but I don't remember it and you don't really need it. A full circle is 360°, and 120° is exactly 1 third of that. 1 third of the size means 1 third of the area:

[tex]a=452.16*\frac{1}{3} \\a=150.72[/tex]

or 150.72 square centimeters

3. the area of the minor arc

You can do the same thing here. The circumference of a circle is:

[tex]u=2\pi r[/tex]

So the circumference of the given circle is:

[tex]u=2\pi (12)\\u=24\pi[/tex]

or about 75.36 centimeters.

One third of that:

[tex]u=75.36*\frac{1}{3} \\u=25.12[/tex]

25.12 centimeters.

Answer:

0

Step-by-step explanation:

because anything times zero is zero

Answer:

rotated about 180 degrees clockwise

Step-by-step explanation:

Triangle C is in the first quadrant and this transformation is done by translating triangle A by a vector (-3,1) and then rotating the triangle B by 180 degrees.

A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions.

From the given graph, the vertices of triangle A are (1, -1), (1, -4) and (3, -4)

The given vector is (-3, 1).

Translate triangle A by a vector (-3,1) to give triangle B.

Then rotate your triangle B 180 degrees around the origin to give triangle C.

The following steps can be used to describe the transformation that maps triangle A onto triangle C:

Step 1 - Triangle A is given in the fourth quadrant.

Step 2 - Now, as per the given data translate triangle A by a vector (-3,1) which means the triangle shift in the negative x-axis by a factor of 3 and also shift downwards in the negative y-axis by a factor of 1.

The resulting triangle is in the third quadrant which is triangle B.

Step 3 - Now, rotate the triangle B by 180 degrees. So, the resulting triangle is triangle C which is in the first quadrant.

Therefore, triangle C is in the first quadrant and this transformation is done by translating triangle A by a vector (-3,1) and then rotating the triangle B by 180 degrees.

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-28.97 written as a mixed number is = -28 97/100

Answer:

-28 97/100

Step-by-step explanation:

-28 97/100 yea

Step-by-step explanation:

the first one I think pls give me a brainliest

Answer:

k is 10

Step-by-step explanation:

Answer:

n = 2

Step-by-step explanation:

Simplifying

(n + 8) + (n + -12) = 0

Reorder the terms:

(8 + n) + (n + -12) = 0

Remove parenthesis around (8 + n)

8 + n + (n + -12) = 0

Reorder the terms:

8 + n + (-12 + n) = 0

Remove parenthesis around (-12 + n)

8 + n + -12 + n = 0

Reorder the terms:

8 + -12 + n + n = 0

Combine like terms: 8 + -12 = -4

-4 + n + n = 0

Combine like terms: n + n = 2n

-4 + 2n = 0

Solving

-4 + 2n = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '4' to each side of the equation.

-4 + 4 + 2n = 0 + 4

Combine like terms: -4 + 4 = 0

0 + 2n = 0 + 4

2n = 0 + 4

Combine like terms: 0 + 4 = 4

2n = 4

Divide each side by '2'.

n = 2

Simplifying

n = 2

The answer is 2! This was very easy for me to figure out, and I think it was easy for you to as well. But no shame if you need help!

Answer:

x=16

y=10

Step-by-step explanation:

8x-14=5x+34

3x=48

x=16

8(16)-14=114

114+5y+16=180

5y+16=66

5y=50

y=10

Answer:

x=16  y=10

Step-by-step explanation:

did this on my quiz. i got it right

Answer: SYSTEMS OF EQUATIONS in TWO VARIABLES. A system of equations is a collection of two or more equations with the same set of unknowns. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system. The equations in the system can be linear or non-linear.

Step-by-step explanation:

Answer:

Gwen's and Tristan's. Keith already has the same equation as Gwen, so it won't help us find out the cost of the entry fee and the cost of each ticket.

Answer:

484

Step-by-step explanation:

This is because 22 squared is 484.

When you take something out from under the square root symbol, you have to square it.

Thus, a number outside the square root to the left of the symbol was originally that same number squared under the square root symbol.

Thus as 22 is outside the symbol, it was originally 22 squared while under the symbol, and 22 squared is 484.

Answer:

One ordered pair would be (1, -6).

Step-by-step explanation:

Let x = 1, then

3(1) - y = 9

-y = 9 - 3 = 6

y = -6.

Answer:

Give a value to either x or y.

For example: if x=2,

3x-y=9

3*2-y=9

6-y=9

y=-3

(x,y) = (2,-3) an ordered pair

Step-by-step explanation:

Answer:

x > -3

Step-by-step explanation:

Answer:

x is greater than or equal to -3

Answer:

v = -24

Step-by-step explanation:

7/8 v = -21

Multiply each side by 8/7 to isolate b

8/7 * 7/8 v = -21 * 8/7

v = -24

Answer:

84 degrees

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

copy the proportion;

1 x

- = ----

8 16

16/8 = 2

1 x 2 = 2

Answer:

Step-by-step explanation:

to find this all you need to do is find the cos per full uniform by adding 1.25m for the blouse and 1.35m for the skirt. This will equal 2.6m per full uniform. you need to then multiply this by 12 to find the total fabric needed for the 12 uniforms which will equal 31.2. you then multiply this answer by the 50 cents per meter to get the cost which will be $15.60

b= -1.5

4/9=2/3 +1/3b

4/9= 6/9+1/3b

-2/9=1/3b

-2/9=3/9b

/-2/9

b= - 1.5

Answer:

Exact Form:

b = -2/3

Decimal Form:

b = -0.¯6

Answer:

The slope of line A is 2, because it goes up 2 units and over to the right 1, but you don't write the 1 in this case.

The slope of line B is -1/2, because it goes down 1 unit and over to the right 2 units.

For the last box: The slopes have opposite reciprocals.

Step-by-step explanation:

Hope this helps you :)

Sorry if it didn't though.

Answer:

A Rational Number can be made by dividing an integer by an integer. (An integer itself has no fractional part.)

Answer:

D because if you graphed the others they wouldn't pass the vertical line test

Step-by-step explanation:

5x + 2y = 6

m = -a/b

m = -5/2

Option → A

The length of diagonal of the checkerboard is [tex]40\sqrt{2} cm[/tex].

The Pythagoras theorem can be applied to a right angle triangle. It states that the square of hypotenuse is equal to sum of square length of base and height of the triangle. Mathematically: Hypotenuse² = Perpendicular² + Base². The diagonal of a square divides the square in two right triangles.

The each side of a checkerboard measures 40 cm, that means checkerboard is a square. So, applying the Pythagoras theorem in the triangle formed by diagonal and two sides of square,

[tex]D^2=S^2+S^2\\D^2=40^2+40^2\\D=40\sqrt{2} cm[/tex]

Where D is the length of diagonal and S is the length of side of checkerboard.

Therefore, the length of the diagonal of checkerboard is [tex]40\sqrt{2} cm[/tex].

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Answer:

12

then’

156

Step-by-step explanation:

hope it helps

Answer: 1.5 gallons

Step-by-step explanation:

(1/2) of a 2oz tube covers 0.25ft^2.  Make this into a conversion factor:

1 oz/0.25ft^2

4oz/ft^2

They have a 48 ft^2 mural.  Assuming no mistakes in painting, they will need:

(48 ft^2)*(1 oz/0.25ft^2) = 192 oz  [Note how the ft^2 units cancel]

There are 128oz/gallon.  Make this a conversion factor:

(gallon/128oz)

Convert 192 oz to gallons:  (192 oz)*(gallon/128oz) = 1.5 gallons

Answer:

  p : q : r = 3 : 18 : 2

Step-by-step explanation:

Given:

  p : q = (1/3) : 2

  p : r = (3/4) : (1/2)

Find:

  p : q : r

Solution:

We want to rewrite these ratios so they use the same number for p. We can do that by using the least common multiple of (1/3) and (3/4) for p. That value is 3.

  p : q = (9)(1/3) : (9)(2) = 3 : 18

  p : r = (4)(3/4) : (4)(1/2) = 3 : 2

Then the ratio of interest is ...

  p : q : r = 3 : 18 : 2

_____

Additional comment

We are not often asked to find the least common multiple of fractions or mixed numbers. One way to do it is to write the numbers using a common denominator, then find the LCM of the numerators, and reduce any resulting fraction.

  LCM(1/3, 3/4) = LCM(4/12, 9/12) = (1/12)·LCM(4, 9) = 36/12 = 3

__

As with integers, you also have ...

  LCM(1/3, 3/4) = product/GCD = (1/3)(3/4)/GCD(1/3, 3/4)

The greatest common divisor (GCD) will be the unit fraction with the least common denominator: 1/12, so this is ...

  LCM(1/3, 3/4) = (1/3)(3/4)/(1/12) = (3/12)/(1/12) = 3

Answer:

1/10

Step-by-step explanation: