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4 years ago

(3/5) squared as a product

Mathematics

1 answer:

Nookie1986 [14]4 years ago

4 0

Answer:

9/25.

Step-by-step explanation:

(3/5)^2

= (3/5 * 3/5)

3*3/5*5

= 9/25

---

Hope this helps!

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A certain car dealership sells economy cars, luxury cars, and sport utility vehicles. The ratio of economy to luxury cars is 3:2

alexira [117]

Answer:

B) 8:9

Step-by-step explanation:

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4 years ago

X<br> When I divide my number by 3 and subtract four, I get<br> six. What is my number?

Neko [114]

Answer:

your number is 30

Step-by-step explanation:

x ÷ 3 - 4 = 6

x = 30

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3 years ago

Read 2 more answers

The base of an aquarium with given volume is made of slate and the sides are made of glass. If slate costs five times as much (p

crimeas [40]

Answer:

Base = Length = (2V/5)^⅓

Height = V^⅓/(2/5)^⅔

Step-by-step explanation:

Let the sides of the aquarium be l,b and h

Where l = length

b = base

h = height

Volume = lbh

V = lbh

The surface area of the box is

A = 2bh + 2lh + 2lb

We'll replace the 2lb with 5lb to get the cost of area because it's given the question that the slate (base) of the box cost 5 times as much per unit area as glass

C(l,b,h) = 2bh + 2lh + 5lb

Make h the subject of formula in (V = lbh)

h = V/lb

This will enable us to account for the lowest cost of materials by taking derivatives of the cost equation, and we need to solve for a l to put into the solution.

Substitute V/lb for h in the cost equation

C(l,b,V/lb) = 2b(V/lb) + 2l(V/lb) + 5lb ------ Simplify

C(l,b,V/lb) = 2V/l + 2V/b + 5lb

Take the derivatives of the above with respect to l and b

Cl = -2V/l² + 5b

Cb = -2V/b² + 5l

Equate Cb to Cl (this implies that b = l)

Cb = Cl =>

-2V/l² + 5b = -2V/b² + 5l

So, we have

C(b,b) = -2V/b² + 5b = 0

-2V/b² + 5b = 0 ---- Solve for b

-2V/b² = -5b ---- Multiply through by b²

-2V = -5b³ ---- Divide through by -5

2V/5 = b³ ---; Rearrange

b³ = 2V/5

b = (2V/5)^⅓

b = l

So, l = (2V/5)^⅓

h = V/lb ---- (b = l)

h = V/l² ---- Substitute (2V/5)^⅓ for l

h = V/((2V/5)^⅓)²

h = V/(2V/5)^⅔

h = V/((V^⅔)(2/5)^⅔)

h = V^⅓/(2/5)^⅔

5 0

4 years ago

12 out of 30 people chose their favourite colour as blue calculate the angle you would use for blue on a pie chart

sergey [27]

First, I'll calculate the percentage:

$\frac{12}{30} *100%= \frac{12*100}{30} = \frac{120}{3} =40$

so it was 40 % of people that chose blue

And now we can calculate the angle;

the full chart would have 360 Degrees, and the "blue" portion of the chart would have 40 % od 360 or $\frac{40*360}{100} =4*36=120+24=144$

so the angle would be 144 degrees!

4 0

3 years ago

Ms. A. Lee is an advisor for the Walton College of Business and she is often asked by students what they should major in if they

sdas [7]

Answer:

1. college

2, salary

3. true experiment

4. 2

Step-by-step explanation:

1. in this scenario the independent variable is the college. that is either walton college or non walton.

2. the dependent variable is the variable of interest. And this is salary. Students want to know what to major in that can give them a lot of salary when they start working.

3. This is a true experiment due to the random sample assigned.

4. 2 conditions to infer causation have been met.

3 0

3 years ago