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3 years ago

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Brad bought a shirt at a 20% discount and with sales tax of 5%. How can the expression 1.05(x - 0.2x) be rewritten to show what

percentage of the original price he paid?a) 0.84x
b) 0.85x
c) 0.21x
d) 0.8x

1 answer:

Sveta_85 [38]3 years ago

5 0

Is b because said 0.85

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A company's profit (in millions of dollars) can be represented by x^2-6x+12, where x is the number of years since the company st

Sergeu [11.5K]

The function that models the profit of the company in million of dollars is:

$P= x^{2} -6x+12$

where x represents the number of years since the company started. We want to find when the profit of the company was $4 million. Setting P as 4 in above equation, we can find the value of x when the profit was $4 million.

$4= x^{2} -6x+12 \\ \\ 
 x^{2} -6x+8=0 \\ \\ 
 x^{2} -2x-4x+8=0 \\ \\ 
x(x-2)-4(x-2)=0 \\ \\ 
(x-2)(x-4)=0 \\ \\ 
x=2, x=4$

Thus, we can conclude that the profit of the company was $4 million in 2nd and 4th year

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Suppose we identify 50 women 50 to 54 years of age who have both a mother and a sister with a history of breast cancer. Five of

zmey [24]

I would say no.

The sisters are just equally in danger as the original women because they both have mothers who have breast cancer themselves.

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A right triangle has a hypotenuse of 25 feet and a leg of 7 feet. Which of these is the length of the other leg?

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25^2=7^2 + x^2
49 + x^2 = 625
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3 years ago

Read 2 more answers

Copy and complete the statement using or =

Lubov Fominskaja [6]

Answer:

hi what are you diong mark me brainist

Step-by-step explanation:

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2 years ago

A closed cylindrical can of fixed volume V has radius r.a) Find the surface area, S, as a function of r.b) What happens to the v

andrey2020 [161]

Answer:

Step-by-step explanation:

This question is incomplete; here is the complete question.

A closed cylindrical can of fixed volume V has radius r. (a) Find the surface area, S, as a function of r. (b) What happens to the value of S approaches to infinity? (c) Sketch a graph of S against r, if V=10 cm³.

A closed cylindrical can of volume V is having radius r and height h.

a). Surface area of a cylinder is given by

S = 2(Area of the circular sides) + Lateral area of the can

S = 2πr² + 2πrh

S = 2πr(r + h)

b). Since surface area is directly proportional to radius of the can

S ∝ r

Therefore, when r approaches to infinity (r → ∞)

c). If V = 10 cm³ Then we have to graph S against r.

From the formula V = πr²h

10 = πr²h

h = $\frac{10}{\pi r^{2}}$

By placing the value of h in the formula of surface area,

S = $2\pi r(r+\frac{10}{\pi r^{2}})$

Now we can get the points to plot the graph,

r -2 -1 0 1 2

S -13.72 -13.72 0 26.28 35.13

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3 years ago