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3 years ago

Please help me with this.Evaluate 8r - rs when r=6 and s=5

Mathematics

2 answers:

kondaur [170]3 years ago

6 0

The answer of the equation is 18.

Ronch [10]3 years ago

5 0

You do 8(6) minus 6(5) = 6(8) = 48 and 6(5) = 30. 48-30 = 18. Your answer is 18.

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In a parallelogram if AB = 3x + 2y and AB = 30 what is the value of x and y

Sergeeva-Olga [200]

We can put the two equations together with substitution, and we get

3x + 2y = 30

Now we have a single equation in two variables, so we don't have enough information to solve for both x and y.

5 0

3 years ago

What is the area of the parallelogram?<br> 4cm 5cm 9cm

hammer [34]

Answer: Incomplete question, please edit.

Step-by-step explanation:

7 0

3 years ago

Which statement is true?

love history [14]

<h2>Hello!</h2>

The answer is:

The second option,

$(\sqrt[m]{x^{a} } )^{b}=\sqrt[m]{x^{ab} }$

Discarding each given option in order to find the correct one, we have:

<h2>First option,</h2>

$\sqrt[m]{x}\sqrt[m]{y}=\sqrt[2m]{xy}$

The statement is false, the correct form of the statement (according to the property of roots) is:

$\sqrt[m]{x}\sqrt[m]{y}=\sqrt[m]{xy}$

<h2>Second option,</h2>

$(\sqrt[m]{x^{a} } )^{b}=\sqrt[m]{x^{ab} }$

The statement is true, we can prove it by using the following properties of exponents:

$(a^{b})^{c}=a^{bc}$

$\sqrt[n]{x^{m} }=x^{\frac{m}{n} }$

We are given the expression:

$(\sqrt[m]{x^{a} } )^{b}$

So, applying the properties, we have:

$(\sqrt[m]{x^{a} } )^{b}=(x^{\frac{a}{m}})^{b}=x^{\frac{ab}{m}}\\\\x^{\frac{ab}{m}}=\sqrt[m]{x^{ab} }$

Hence,

$(\sqrt[m]{x^{a} } )^{b}=\sqrt[m]{x^{ab} }$

<h2>Third option,</h2>

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

The statement is false, the correct form of the statement (according to the property of roots) is:

$a\sqrt[n]{x}+b\sqrt[n]{x}=(a+b)\sqrt[n]{x}$

<h2>Fourth option,</h2>

$\frac{\sqrt[m]{x} }{\sqrt[m]{y}}=m\sqrt{xy}$

The statement is false, the correct form of the statement (according to the property of roots) is:

$\frac{\sqrt[m]{x} }{\sqrt[m]{y}}=\sqrt[m]{\frac{x}{y} }$

Hence, the answer is, the statement that is true is the second statement:

$(\sqrt[m]{x^{a} } )^{b}=\sqrt[m]{x^{ab} }$

Have a nice day!

6 0

3 years ago

Max can spend up to $9 on lunch. He wants to buy a turkey sandwich, bottle of water, and x pounds of potato salad. Write and sol

Elza [17]

4.25+2.25+4x is less than or = to 9

5 0

3 years ago

999,765 rounded to the nearest hundred thousand

BigorU [14]

The answer will be: 1,000,000 if you round to the nearest hundred thousands. Hope it helps! :D

4 0

3 years ago

Read 2 more answers