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Brums [2.3K]
4 years ago
7

Fórmula para sacar el área de un circulo

Mathematics
1 answer:
saul85 [17]4 years ago
8 0
<span>Fórmula para sacar el área de un circulo:

A = \pi r^2
</span>
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Will give brainliest if answer is correct.
Pachacha [2.7K]

Answer:

Length = 13

Width = 7

Step-by-step explanation:

Given:

length = 2(width) - 1

Area of a Rectangle = lω = 91 cm²

Calculation:

Area of a Rectangle = lω = 91 cm²

(2ω-1)ω = 91

= 2ω²- ω - 91 = 0

=(2ω+13)(ω-7)=0

ω = -6.5       ω=7

length = 2(width) - 1

l=2(7) - 1

l = 13

7 0
3 years ago
Read 2 more answers
Compare the two functions to see which has a greater rate of change. Function 1
AleksAgata [21]

Function 2 has greater rate of change

Step-by-step explanation:

In order to find the rate of change we have to covert the given linear functions in slope-intercept form

<u>Function 1:</u>

<u></u>-2x+5y = 10<u></u>

Adding 2x on both sides

<u></u>-2x+5y+2x = 2x+10\\5y = 2x+10<u></u>

Dividing both sides by 5

<u></u>\frac{5y}{5} = \frac{2x+10}{5}\\y = \frac{2}{5}x +\frac{10}{5}\\y = \frac{2}{5}x+2<u></u>

Let m1 be rate of change of function 1:

<u></u>m_1 = \frac{2}{5}<u></u>

<u></u>

<u>Function 2:</u>

<u></u>-6x+3y = 18<u></u>

Adding 6x on both sides

<u></u>-6x+3y+6x = 6x+18\\3y = 6x+18<u></u>

Dividing both sides by 3

<u></u>\frac{3y}{3} = \frac{6x+18}{3}\\y = \frac{6x}{3} + \frac{18}{3}\\y= 2x+6<u></u>

Let m2 be the slope of function 2

<u></u>m_2 = 2<u></u>

As we can see that

<u></u>m_2>m_1<u></u>

Function 2 has greater rate of change

Keywords: Linear functions, slope

Learn more about functions at:

  • brainly.com/question/10699220
  • brainly.com/question/10703930

#LearnwithBrainly

7 0
3 years ago
A cylinder whose radius is 21cm has a curved surface area of 528cm2. Calculate the height of the cylinder.​
VARVARA [1.3K]

Answer:

110888

Step-by-step explanation:

v=surface area *radius

v=528*21=110888cm3

4 0
3 years ago
Read 2 more answers
Sammy buys his clothes at super discounts. On saturday he bought shoes regularly priced at $40 for 25% off, and jacket regularly
Georgia [21]

Answer:

A. $100

B. 29%

Step-by-step explanation:

A. To find total price of the items Sammy bought we will add the price of shoes and jacket after discount.

Let us find price of shoes after 25% discount.

\text{Price of shoes after discount}=40-(\frac{25}{100}*40)

\text{Price of shoes after discount}=40-(\frac{1}{4}*40)

\text{Price of shoes after discount}=40-10=30

Therefore, price of shoes after discount is $30.

Now let us find price of jacket after 30% discount.

\text{Price of jacket after discount}=100-(\frac{30}{100}*100)

\text{Price of jacket after discount}=100-30

\text{Price of jacket after discount}=70

Therefore, price of jacket after discount is $70.

Now let us add both prices to find the total price of the items.

\text{Total price of items}=30+70

\text{Total price of items}=100

Therefore, the total price of the items bought by Sammy is $100.

B. To find the percent discount which Sammy got on his total purchases, we will use percent change formula.

\text{Percent change}=\frac{\text{Difference}}{\text{Original value}}\times 100  

Total price without discount= 100+40=140

\text{Discount percent}=\frac{140-100}{140}\times 100

\text{Discount percent}=\frac{40}{140}\times 100

\text{Discount percent}=0.2857142857142857\times 100

\text{Discount percent}=28.57142857142857\approx 29

Therefore, Sammy got approximately 29% discount on his total purchases.


7 0
4 years ago
Target has Ritz crackers for $2.69 a box with 35% off the price how much will they cost
anygoal [31]

The answer is 1.74 I just used a calculator

7 0
3 years ago
Read 2 more answers
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