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Ksivusya [100]
3 years ago
5

Sam and his friends had take-out spaghetti and meatballs for dinner. The tax was $3. The tax rate is

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

7.8% include tax

Step-by-step explanation:

that is the price

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Choose the shape that has exactly three lines of symmetry.
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Answer:

an EQUILATERAL triangle!!

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Three times a larger number is 30 more than 5 times a smaller number. The sum of the larger number and 5 times the smaller numbe
slava [35]
3y  = 5x + 30

y + 5x = 50 .......(1)

3y - 5x = 30 .....(2)        - rearranging the first equation.

Add (1) and (2):-

4y = 80

y = 20  
Now plug y = 20 into equation (1):-
20 + 5x = 50
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The 2 numbers are 6 and 20.

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For a recent year, the rate of first-class postage is as follows:
Law Incorporation [45]

Answer:

$0.95

Step-by-step explanation:

Given that weight of the function = x

Given that cost of the postage for mail having weight less than or equal to 1 oz = $0.44

then to find the equation can be written as

C(x)=0.44  where 0<x<=1

Similarly we can write equation for other parts

C(x)=0.61  where 1<x<=2

C(x)=0.78  where 2<x<=3

C(x)=0.95  where 3<x<=3.5

Now we can write them together as piecewise function as shown in below:

C(x)=\left\{\begin{matrix}0.44 & 0

to graph that we just draw horizontal lines for each as none equation contains x on the right side .

3.48 oz is less that 3.5 so we will use $0.95.


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Which equation has a graph that is a parabola with a vertex at (–2, 0)?
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Comparing to the standard equation, the parabola with a vertex at (-2,0) is given by:

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<h3>What is the equation of a parabola given it’s vertex?</h3>

The equation of a quadratic function, of vertex (h,k), is given by:

y = a(x - h)² + k

In which a is the leading coefficient.

In this problem, we have that h = -2 and k = 0, and all the options have leading coefficient a = 1, hence the equation is:

y = (x + 2)²

More can be learned about the equation of a parabola at brainly.com/question/17987697

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Directions: What does each of the following mean? Write out in words and phrases.
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Eleven plus
t minus seventeen
ten multiplied by n
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