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3 years ago

14

Each of the following correctly match an English phrase with a mathematical expression except

1 answer:

Neporo4naja [7]3 years ago

3 0

Answer:

a number divided by 7=x÷7

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Can someone help me with this please

Firdavs [7]

Answer:

D

Step-by-step explanation:

A function input can only have ONE output value

so the number 5 can't output two different numbers

6 0

2 years ago

The tourists went in the first hour with a speed of 3.5km/h to the bus station, realizing that they would arrive 1 hour late at

mestny [16]

The answer should be 4.25km

7 0

3 years ago

Determine the unknown angle measures of △DEF. Round to the nearest degree. m∠D = ° m∠F = °

Veseljchak [2.6K]

Angle D = 46
Angle F = 44

8 0

3 years ago

Read 2 more answers

Plz write this on paper help me and send it❤️

vovangra [49]

Answer:

1. $27^{\frac{2}{3} } =9$

2. $\sqrt{36^{3} } =216$

3. $(-243)^{\frac{3}{5} } =-27$

4. $40^{\frac{2}{3}}=4\sqrt[3]{25} =4325$

5. Step 4: $(\frac{343}{27}) ^{-1} =\frac{27}{343}$

6. $D. -72cd^{7}$

Step-by-step explanation:

Use the following properties:

$a^{\frac{x}{y} } =\sqrt[x]{a^{y} }$

$\sqrt[n]{ab} =\sqrt[n]{a} \sqrt[n]{b}$

$a^{-n} =\frac{1}{a^{n} }$

$(xy)^{z} =x^{z} y^{z} \\\\$

$(x^{y}) ^{z} =x^{yz}$

$x^{y} x^{z} =x^{y+z}$

So:

1. $27^{\frac{2}{3} } =\sqrt[3]{27^{2}} =\sqrt[3]{729} }=9$

2. $\sqrt{36^{3} } =\sqrt{36*36*36} =\sqrt{36} \sqrt{36} \sqrt{36} =6*6*6=216$

3. $(-243)^{\frac{3}{5} } =\sqrt[5]{-243^{3} } =\sqrt[5]{-14348907} =-27$

4. $40^{\frac{2}{3}}=\sqrt[3]{40^{2} } =\sqrt[3]{2^{6} 5^{2} } =\sqrt[3]{2^{6} } \sqrt[3]{5^{2} } =2^{\frac{6}{3} } 5^{\frac{2}{3} } =4 *5^{\frac{2}{3} } =4\sqrt[3]{5^{2} } =4\sqrt[3]{25}=4325$

5. $(\frac{343}{27}) ^{-1} =\frac{1}{\frac{343}{27} } =\frac{27}{343}$

6.

$(-8c^{9} d^{-3} )^{\frac{1}{3} } *(6c^{-1}d^{4})^{2} =\sqrt[3]{-8} c^{3} d^{-1} 36c^{-2} d^{8} \\\\-2c^{3} d^{-1} 36c^{-2} d^{8}=-72cd^{7}$

7 0

3 years ago

tongue tied sauces inc finds that the revenue in dollars from the sale of x bottles of barbeque sauce is given by

charle [14.2K]

Answer:

The answert is "$0.007 / bottle".

Step-by-step explanation:

Please find the complete question in the attachment file.

$\to R(x) =7.5x^{0.7}$

The average income:

$\to A(x) = \frac{R(x)}{x} =7.5 x^{-0.3}$

The change rate on the average revenue:

$\to A'(x) =7.5(-0.3)x^{-1.3}$

when 81 bottles were produced , then the rate of change in average revenue

$\to =A'(81)\\\\\to -0.007 \ / \ bottle$

The average income is decreasing at rate = $0.007 / bottle

4 0

2 years ago