PLZ HELP LAST QUESTION

Mathematics

1 answer:

marshall27 [118]3 years ago

4 0

The pictures confused me, can you explain them please?

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The regular price of a stainless steel iron is $30.00. Today it is on sale for 40% off. What is the sale price?

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The radius of a circle is 8 feet. What is the area of sector bounded by a 90° arc?

Lera25 [3.4K]

Since 90 degree is 1/4 of a circle, the area will be 1/4 th area of the full circle.

The radius is given by, r = 8 ft, therefore, the area of the full circle is,

$\begin{gathered} A=\pi\times r^2 \\ A=3.14\times8^2=200.96ft^2 \end{gathered}$

Therefore, the area of the sector is,

$A^{\prime}=\frac{1}{4}\times200.96ft^2=50.24ft^2$ $\begin{gathered} A^{\prime}=\frac{\theta}{360}\times\pi\times r^2 \\ \text{ =}\frac{\text{90}}{360}\times\pi\times8^2 \\ \text{ =}\frac{1}{4}\pi\times64=16\pi \end{gathered}$

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1 year ago

4.18 repeating as a fraction

olga_2 [115]

Answer: it’s 148 also i don’t know if you mean 4.18 as a fraction?

Step-by-step explanation:

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2 years ago

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iogann1982 [59]

4/2 * 4/5 = (4*4) ^ (2*5) = 1 3/5 = 1.6

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35. In her rough work, Janu added 2389 and 740 as shown here.

Elis [28]

Answer:

Step-by-step explanation:

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