Lin’s father is paying for a $20 meal.
He has a 15%-off coupon for the meal.
After the discount, a 7% sales tax is applied.
What is the total amount Lin’s father pay for the meal?

Explain or show your reasoning.

Answer:

you divide the number of ounces by the number of pints

Step-by-step explanation:

Answer:

9 sq un

Step-by-step explanation:

Answer:

400 m^2.

Step-by-step explanation:

The largest  area is obtained where the enclosure is a square.

I think that's the right answer because a square is a special form of a rectangle.

So the square would be 20 * 20  = 400 m^2.

Proof:

Let the  sides of the rectangle be x and y m long

The area A = xy.

Also the perimeter  2x + 2y = 80

x + y = 40

y = 40 - x.

So substituting for y in A = xy:-

A = x(40 - x)

A = 40x - x^2

For maximum value of A  we find the derivative and equate it to 0:

derivative A' =  40 - 2x = 0

2x = 40

x = 20.

So y = 40 - x

= 40 - 20

=20  

x and y are the same value so x = y.

Therefore for maximum area the rectangle is a square.

The largest area of rectangle will be 400 square meters.

Let us consider the length and breadth of rectangle is x and y respectively.

Perimeter of rectangle is given that 80 meters.

                                  [tex]2x+2y=80\\\\x+y=40\\\\y=40-x[/tex]

 Area of rectangle is,

                                        [tex]=x*y\\\\=x*(40-x)\\\\A=40x-x^{2}[/tex]

  For maximum area, differentiate Area with respect to x  and equate with zero.

                           [tex]\frac{dA}{dx} =\frac{d}{dx}(40x-x^{2} ) \\\\\frac{dA}{dx} =40-2x=0\\\\x=40/2=20m[/tex]

       So,    [tex]y=40-20=20m[/tex]

Area  = [tex]20*20=400m^{2}[/tex]

Thus, The largest area of rectangle will be 400 square meters.

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Answer:

is equal cuz a will be cut and be will be cut so what is left 1 is left so it is equal plz Mark me as the brainliest and thank me

Answer:

1.50

Step-by-step explanation:

Answer:

See explanation

Step-by-step explanation:

cos62˚ ≈ 0.469

0.469 x 12 = 5.628

The value of cos62 x 12 is 5.634.

We are given that;

The trigonometric function

cos62 x 12

Now,

Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.

To find the value of cos62 x 12, we can use a calculator or a trigonometric table.

we get:

cos62 x 12 = 0.4695 x 12

= 5.634

Therefore, by trigonometric function the answer will be 5.634 (approx.)

Learn more about trigonometric;

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#SPJ4

Answer:

Euler's formula, Either of two important mathematical theorems of Leonhard Euler. ... It is written F + V = E + 2, where F is the number of faces, V the number of vertices, and E the number of edges. A cube, for example, has 6 faces, 8 vertices, and 12 edges, and satisfies this formula.

Answer:

e^{ix}=\cos x+i\sin x

e = base of the natural logarithm

i = imaginary unit

x = the angle in radians

Step-by-step explanation:

Answer:

let the two complementary angles be x and 90-x

x= 7t (say)

90-x= 11t

x+90-x=90= 7t+11t=18t

90=18t

t=90/18= 10/2= 5

so x= 7×5=35 degrees

and 90-×=90-35=55 degrees

Answer:

Step-by-step explanation:

Say thanks

mark brainlist

and rate 5!

x= 7t (say)

90-x= 11t

x+90-x=90= 7t+11t=18t

90=18t

t=90/18= 10/2= 5

so x= 7×5=35 degrees

and 90-×=90-35=55 degrees

Answer:

506.91

Step-by-step explanation:

Either that or it is D

Answer:

56.52 units³

Step-by-step explanation:

[tex]v = \pi {r}^{2}h[/tex]

r = 3 units ; h (height) = 2

V = 3.14 × 3² × 2

= 3.14 × 9 × 2

= 56.52 units³

Answer:

2nd answer, (2.1,3.5)

Step-by-step explanation:

Reflection over x axis rule:

(x,-y) Change the sign of the y coordinate.

So we basically change the sign of the y axis (-3.5) to get (3.5).

Very much simple and I hope it helps.

Answer:

C

Step-by-step explanation:

256^1/4=4

So C is the right answer

Hope this helps :D

Answer:

We have the function:

f(x) = 2*sin(x) - 3

To graph this type of functions is useful to understand the parts of the function.

A general one is written as:

g(x) = A*sin(w*x + p) + M

where:

A is the amplitude

w is the angular frequency.

p is the phase

M is the midline.

Then in this case we have an amplitude of 2, an angular frequency of 1, a phase of 0 radians and the midline y = -3

Now we can evaluate the function in different points and (knowing how a sine function behaves) connect them, the graph will look something like this:

Answer:

There are 6 slices on each pizza

Step-by-step explanation:

Because 18 divided by 3 is 6

Answer:

5 pints = 10 cups

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

5 * 2 = 10

Answer:

The answer is C

[tex]3 {w}^{2} + 10w + 8[/tex]

Step-by-step explanation:

Let The width as (w) and lenth as(l)

Then l=3w

When the width increase by 2

Then the New width is w+2

And the lenth increase by 4

Then the New lenth is 3w+4

Then we can find the area

[tex](w + 2)(3w + 4) \\ 3 {w}^{2} + 10w + 8[/tex]

Answer:

Y < 2X

Step-by-step explanation:

Let the acres of land on which pea is to be cultivated is "X" acres and the acres of land on which tomato is to be cultivated is "Y"

It is given that number acres of tomatoes planted must not be more then twice the number of acres of peas planted

Thus, [tex]Y < 2X[/tex]

[tex]X + Y = 12[/tex] acres

[tex]Y = 12-X[/tex] acres

Thus,

[tex]12 - X \leq X\\12\leq 2X\\6 \leq X[/tex]

Let us take X = 6 , Then Y = 13-6 = 6

Answer:

The first answer

Step-by-step explanation:

Answer:

Ummm I dont know what subject it is so i will guess 2.3?

Step-by-step explanation:

I'm Sorry im really useless

Answer:

[tex]4 \geqslant w \geqslant - 8[/tex]

Answer:

Y = 4x + 1

Step-by-step explanation:

1 × 4 + 1 = 5

2 × 4 + 1 = 9

3 × 4 + 1 = 13

4 × 4 + 1 = 17

Answer:

x= 70°, y=40°

Step-by-step explanation:

2x=140

x= 70

y= 180-140= 40

140 + y = 180

y = 180 - 140

y = 40

2x + 40 = 180 (Angle Sum Property)

2x = 180 - 40

2x = 140

x = 140/2

x = 70

X = 70

Y = 40

Answer:

6

Step-by-step explanation:

Took the test

Answer:

6

Step-by-step explanation:

Answer:

your answer will be D). (6,9)

Step-by-step explanation:

hope it helps bye!!

Answer:

m<1 = m<2 = 98

Step-by-step explanation:

the measurement of angle 1 and 2 are the same because the two triangle half's (top and bottom) of the polygon are congruent.

any 4 sided polygon has sums of their internal angles = 360 degrees.

(for example a square has four 90 degrees angles, 360=90+90+90+90)

we know that 2 angles are 90 and 74,

we also know that the 2 other angles (m<1 and m<2) are the same,

m<1 +m<2 +90 +74=360

m<1+m<2=360-90-74

2*m<1=196

m<1=196/2

m<1=98

m<2=98

Answer:

5

Step-by-step explanation:

5÷1

i m not sure but i like its ans

Answer:

The volume of the cylinder ≅ 197.82[tex]cm^{2}[/tex]

Step-by-step explanation:

The volume of a cylinder is equal to the area of the base times the height. We know the radius, therefore we can find the area of the base. The formula for the volume of the cylinder is as follows:

V = π[tex]r^{2}[/tex][tex]h[/tex]

(now substitute the values of "r" and "h", and get...)

V = π[tex]r^{2}[/tex][tex]h[/tex]

[tex]V = (3^{2} )(7)[/tex] x π

V = (9)(7)π

V = 63π

V ≅ 197.82[tex]cm^{2}[/tex]

Answer:

Step-by-step explanation: