Fórmula para sacar el área de un circulo

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

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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

Function 1:

$-2x+5y = 10$

Adding 2x on both sides

$-2x+5y+2x = 2x+10\\5y = 2x+10$

Dividing both sides by 5

$\frac{5y}{5} = \frac{2x+10}{5}\\y = \frac{2}{5}x +\frac{10}{5}\\y = \frac{2}{5}x+2$

Let m1 be rate of change of function 1:

$m_1 = \frac{2}{5}$

Function 2:

$-6x+3y = 18$

Adding 6x on both sides

$-6x+3y+6x = 6x+18\\3y = 6x+18$

Dividing both sides by 3

$\frac{3y}{3} = \frac{6x+18}{3}\\y = \frac{6x}{3} + \frac{18}{3}\\y= 2x+6$

Let m2 be the slope of function 2

$m_2 = 2$

As we can see that

$m_2>m_1$

Function 2 has greater rate of change

Keywords: Linear functions, slope

Learn more about functions at:

#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

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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

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