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Rudik [331]
3 years ago
9

A car travels 30.75 miles in 2/3 of an hour. What is the average speed, in miles per hour, of the car?

Mathematics
1 answer:
Molodets [167]3 years ago
8 0
The answer is 46 miles per hour
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Simplify and determine the coefficient of (-x)(3y)(-2x).<br><br> a.-4<br> b.1/3<br> c.1<br> d.4
aalyn [17]
The coefficients in the equation (-x)(3y)(-2x) are the constants -1, 3, and -2. 
In order to simplify and determine only one coefficient <span>we should multiply all  three constants together to get only one numerical constant .
</span><span>The commutative law</span> says hat you can rearrange a multiplication any way you want. so, (-1)*3*(-2)=(-3)*(-2)=6
The equation can be also simplified written as:
6x^2y
None of the option is the solution.
6 0
3 years ago
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Write an expression
Flura [38]

Answer:

0.50+0.35x

Step-by-step explanation:

7 0
3 years ago
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Rewrite the following expression using the properties of rational exponents. Be sure your answer is in simplest form.
Nookie1986 [14]

Answer:

(2\cdot 6)^{\frac{3}{2}}=24(3)^{\frac{1}{2}}

Step-by-step explanation:

The given expression is (2*6)^{\frac{3}{2}}

We multiply within the parenthesis to get:

(12)^{\frac{3}{2}}

Recall that: a^{\frac{m}{n} } =\sqrt[n]{x^m}

We apply this property to get:

(12)^{\frac{3}{2}}=\sqrt{12^3}

(12)^{\frac{3}{2}}=\sqrt{12^2*12}

This simplifies to

(12)^{\frac{3}{2}}=12\sqrt{12}

We can simplify further

(12)^{\frac{3}{2}}=12\sqrt{4*3}=12*2\sqrt{3}=24\sqrt{3}

We rewrite as rational exponent  24(3)^{\frac{1}{2}}

3 0
3 years ago
Need the answer on this ​
denpristay [2]
None of the answers are correct because it’s definitely not “Given” because x=20 is like an answer. It’s also not “Distributive Property”, “subtraction Property”, and or “Additional Property” b/c there’s nothing that can be distributed, subtract or add. It’s just an answer.
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3 years ago
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Which expression models the rental cost after n hours?​
Licemer1 [7]
Can you show the models?
7 0
3 years ago
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