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3 years ago

Find the circumference and the area of a circle with diameter 2 cm.

Mathematics

1 answer:

ivolga24 [154]3 years ago

3 0

Answer:

$c = 6.28cm$

$area \: = 3.14 {cm}^{2}$

Step-by-step explanation:

$circumferece \\ = 2\pi \: r \\ = 2 \times 3.14 \times 1 \\ = 6.28cm$

$area = \pi {r}^{2} \\ = \pi \times 1 \times 1 \\ = 3.14 {cm}^{2}$

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Mancini's Pizzeria sells four types of pizza crust. Last week, the owner tracked the number sold of each type, and this is what

Anvisha [2.4K]

Question:

Mancini's Pizzeria sells four types of pizza crust. Last week, the owner tracked the number sold of each type, and this is what he found.

Type of Crust Number Sold

Thin crust 312

Thick crust 245

Stuffed crust 179

Pan style 304

Based on this information, of the next 4500 pizzas he sells, how many should he expect to be thick crust? Round your answer to the nearest whole number. Do not round any intermediate calculations.

Answer:

1060 thick crusts

Step-by-step explanation:

Given

The above table

Required

Expected number of thick crust for the next 4500

For last week data, calculate the proportion of thick crust sold

$\hat p = \frac{Thick\ crust}{Total}$

$\hat p = \frac{245}{312+245+179+304}$

$\hat p = \frac{245}{1040}$

$\hat p = 0.235577$

For the next 4500;

$n = 4500$

The expected number of thick crust is (E(x)):

$E(x) = \hat p * n$

$E(x) = 0.235577 * 4500$

$E(x) = 1060.0965$

$E(x) \approx 1060$

3 0

3 years ago

You need to cross a canal and want to determine the distance across the opposite side. Since you're able to take measurements on

MariettaO [177]

Answer:

36.7 ft

Step-by-step explanation:

Measurements for the sides of the canal is given as: 40 ft. and 16 ft.

You solve the above question using Pythagoras Theorem

The distance across the canal is calculated as:

√(40² - 16²)

= √(1344)

= 36.66060556 ft

Approximately = 36.7 ft

Therefore, the distance x across the canal = 36.7 ft

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3 years ago

Simplificando a expressão (3x^2 + 5x - 2) + (x^2 - 2x - 1) , vamos obter :

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You have to add all the common terms together.

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4 years ago

X² - 4

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Yes so he shows this by also doing what is called the flow. After this it is complete

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3 years ago

37 of 75 customers in the store made a purchase of at least $20. Approximately what percent of the customers made a purchase of

sladkih [1.3K]

Percents are represented by the following expression:

$\begin{gathered} \text{Total}\cdot\frac{\text{percent}}{100}=\text{Equivalent number to the percent} \\ \end{gathered}$

Since, we have total of customers and the equivalent number to the percent=3

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1 year ago