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3 years ago

13

Which situation could be represented by -15?

1 answer:

Agata [3.3K]3 years ago

3 0

Having 15 fewer people go to a concert

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A local appliance store advertised a “10% off sale” on ovens. Mrs. Jones found an oven she liked that cost $560 before the sale.

KIM [24]

Answer:

504 dollares 56 dollars off

Step-by-step explanation:

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3 years ago

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Simplify the square root of four over the cubed root of four.

Vikki [24]

$\bf ~\hspace{7em}\textit{rational exponents} \\\\ a^{\frac{ n}{ m}} \implies \sqrt[ m]{a^ n} ~\hspace{10em} a^{-\frac{ n}{ m}} \implies \cfrac{1}{a^{\frac{ n}{ m}}} \implies \cfrac{1}{\sqrt[ m]{a^ n}} \\\\\\ ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\bf \cfrac{\sqrt{4}}{\sqrt[3]{4}}\implies \cfrac{\sqrt[2]{4}}{\sqrt[3]{4}}\implies \cfrac{4^{\frac{1}{2}}}{4^{\frac{1}{3}}}\implies 4^{\frac{1}{2}}\cdot 4^{-\frac{1}{3}}\implies 4^{\frac{1}{2}-\frac{1}{3}}\implies 4^{\frac{3-2}{6}} \\\\\\ 4^{\frac{1}{6}}\implies (2^2)^{\frac{1}{6}}\implies 2^{2\cdot \frac{1}{6}}\implies 2\frac{1}{3}\implies \sqrt[3]{2}$

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3 years ago

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Help me please <br> Najdjajabahvaud

professor190 [17]

Answer:

$27

Step-by-step explanation:

Before entering, you have already payed, thus at 0 rides, your money payed is 27.

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3 years ago

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The measures of the angles of a triangle are shown in the figure below. Solve X.

poizon [28]

Answer:

x = 106º

Step-by-step explanation:

There are 180º in every triangle

x = 180 - 32 - 42

x = 106º

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3 years ago

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A circular hot spring has a diameter of 76 meters. Over time, the diameter of the spring decreases by 4 meters. By how many squa

VikaD [51]

Answer:

<h2>The area of the spring decreases by 370.52*10⁴cm²</h2>

Step-by-step explanation:

The formula for calculating the area of the circular hot spring = $\pi r^{2}$ or $\frac{\pi d^{2} }{4}$

Initial area of the spring with diameter of 76metres is as shown

$= \frac{\pi (76)^{2} }{4} \\= 1444\pi m^{2}$

If the diameter of the spring decreases by 4 meters over time, the new diameter after decrease will be 76meters less 4 meters which is 72metres.

New area;

$\frac{\pi (72^{2} )}{4}\\ = 1296\pi m^{2}$

Decrease in area = 1444πm²-1296πm²

Decrease in area = 148πm²

= 370.53m²

since 1m²=10⁴cm²

then 370.53m² = 370.52*10⁴cm²

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4 years ago