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olganol [36]
3 years ago
11

Kathi was working at the ice cream parlor. A customer ordered 3 small ice cream cones for $3.15 each. The customer paid with $10

.00. How much change does Kathi need to give the customer?
Mathematics
2 answers:
Tanzania [10]3 years ago
6 0

Answer: 55 cents.

explanation: 3 * 3.15=9.45

10-9.45=0.55

Kruka [31]3 years ago
4 0
He needs to give him 55cents
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the vertex of this parabola is at 4,-3 when the x value is 5 the y value is -6 what's the coefficient of the squared expression
schepotkina [342]

Answer:

d) -3

Step-by-step explanation:

The equation of a parabola in vertex form is given as:

y = a(x - h)² + k. Where (h, k) is the vertex of the parabola.

Given that the vertex of the parabola is at (4,-3) i.e h = 4 and k = -3.

The equation of the parabola is given as:

y = a(x - 4)² + (-3)

y = a(x² - 8x + 16) - 3

y = ax² - 8ax + 16a - 3

Given that when x = 5, y = -6. i.e:

-6 = a(5)² - 8a(5) + 16a - 3

- 6 = 25a - 40a + 16a - 3

-6 + 3 = a

a = -3

7 0
3 years ago
Given the line below.
Assoli18 [71]

Answer:

y + 1 = \frac{1}{2} (x + 2)

Step-by-step explanation:

The equation of a line in point- slope form is

y - y₁ = m(x - x₁)

where m is the slope and (x₁, y₁ ) a point on the line

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 2, - 1 ) and (x₂, y₂ ) = (2, 1 )

m = \frac{1-(-1)}{2-(-2)} = \frac{1+1}{2+2} = \frac{2}{4} = \frac{1}{2} and (x₁, y₁ ) = (- 2, - 1 ) , then

y - (- 1) = \frac{1}{2}(x - (- 2) ) , that is

y + 1 = \frac{1}{2} (x + 2)

8 0
3 years ago
1. Find the area of the parallelogram.
I am Lyosha [343]

Answer:

Step-by-step explanation:

Formula

Area = B * h

Givens

Base = 2.5

height = 5.25

Solution

You choose the value for the base and height from the fact that the height touches the base (which has been extended) at right angles.

Area =  2.5 * 5.25

Area = 13.125

Answer: Area = 13.125 or 13 1/8

5 0
2 years ago
A large wooden box, as shown, has a volume of 4352 ft3. The box is a right square prism with a base with sides that each measure
notsponge [240]
<h2>Volume of a Prism</h2>

To find the volume of a prism, we can use the following formula:

V=base\hspace{3}area*height

Although this formula is typically used to find the volume of a prism, we can also use it to find the base area or height, as long as we re-arrange it accordingly.

For a rectangular prism, the base area is solved using the following formula:

A=lw ⇒ where <em>l</em> is the length and <em>w</em> is the width

<h2>Solving the Question</h2>

We're given:

  • V = 4352 ft³
  • <em>l</em> = 16 ft
  • <em>w</em> = 16 ft
  • We need to solve for the height of the box.

First, find the base area:

A=lw\\A=16^2\\A=256

Therefore, the base area is equal to 256 ft².

Now, modify the volume formula to isolate the height:

V=base\hspace{3}area*height

⇒ Divide both sides by the base area:

\dfrac{V}{base\hspace{3}area}=\dfrac{base\hspace{3}area*height}{base\hspace{3}area}\\\\\dfrac{V}{base\hspace{3}area}=height\\\\height=\dfrac{V}{base\hspace{3}area}

⇒ Plug in the given values:

height=\dfrac{4352}{256}\\\\height=17

Therefore, the height of the box is 17 ft.

<h2>Answer</h2>

The height of the box is 17 ft.

3 0
2 years ago
What is the slope of the line through (-5,-10) and (-1,5)
Brilliant_brown [7]
The slope is 15/4
(up 15, over 4)
or up 3.75, over 1 if you reduce
6 0
4 years ago
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