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3 years ago

13

a store has some sale on let supplies the price of each item is marked down 25% the store also offers a coupon for 5 off for whe

n you check out write an expression that represents the final price after a customer uses the coupon

1 answer:

mylen [45]3 years ago

8 0

0.25+5x is the expression

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What is the value of the function when the value x = 0?

monitta

F(0)=3. That means when the x input is 0, the y output, the y coordinate, is 3. It will be a point on the graph of whatever that curve looks like.

3 0

3 years ago

Consider the function g(x)=5x2−18x+35. find the area under the curve g(x) from x = 0 to x = 13 and then subtract from it the are

Black_prince [1.1K]

We integrate the given equation such that,

integral of g(x) = (5/3)x³ - 9x² + 35x

Substituting,
x = 13
integral of g(x) = (5/3)(13³) - 9(13)² + 35(13)
= 2595.67

and, x = 0
integral of g(x) = 0

The area is 2595.67 - 0 = 2595.67

For the second part,
x = 1
integral of g(x) = (5/3)(1)³ - 9(1)² + 35(1)
= 27.67

Area under the curve between x = 0 and x = 1 is 27.67

The difference between the two areas is,
2595.67 - 27.67 = 2568.0

Answer: 2568.0 units squared

8 0

3 years ago

A guy wire to a tower makes a 72 degrees angle with level ground. At a point 30 ft farther from the tower than the wire but on t

Andreyy89

So.. checking the picture below

we can say y = y, or just do a substitution and end up with

$\bf tan(72^o)=tan(30^o)(30+x)\implies 3.08x=\cfrac{30}{\sqrt{3}}+\cfrac{1}{\sqrt{3}}x
\\\\\\
3.08x-\cfrac{1}{\sqrt{3}}x=\cfrac{30}{\sqrt{3}}\implies 2.5x\approx 17.32\implies x\approx \cfrac{17.32}{2.5}$

once you know, how long is "x", then you can simply use the cosine of 72° to get "r"

thus $\bf cos(\theta)=\cfrac{adjacent}{hypotenuse}\qquad cos(72^o)=\cfrac{x}{r}\implies r=\cfrac{x}{cos(72^o)}$

6 0

4 years ago

Read 2 more answers

Lila is making a tile pattern in the shape of a square.

dusya [7]

9x9 = 81
So, the answer would be 81 inches squared

8 0

3 years ago

A company's logo was designed using circles of 3 different. sizes. The diameters of two of the circles are shown. Which measurem

Helga [31]

Answer:

option D . 254.34cm^2

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

The options are:

A . 56.52cm^2

B . 141.30cm^2

C . 1,017.36cm^2

D . 254.34cm^2

step 1

Find the diameter of the largest circle

we know that

The diameter of the largest circle is equal to the sum of the diameter of the two inside circles

so

$D=6+12=18\ cm$

step 2

Find the area of the largest circle

we know that

The area of the circle is given by the formula

$A=\pi r^2$

we have

$r=18/2=9\ cm$ ----> the radius is half the diameter

assume

$\pi=3.14$

substitute

$A=(3.14)(9^2)=254.34\ cm^2$

4 0

4 years ago