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2 years ago

Amery drives 50 miles in one hour.How many miles does he drive in 2.25 hours

Mathematics

2 answers:

DerKrebs [107]2 years ago

3 0

Amery can drive 112.5 miles in 2.25 hours.

Y_Kistochka [10]2 years ago

3 0

112.5 because you multiply 50 × 2.25

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The snowiest city receive an average of 113.9 more inches of snow than the second snowiest city. The second snowiest city reciev

steposvetlana [31]

Answer:

The snowiest city receive 347.7 inches on average each year.

Step-by-step explanation:

We want to find the amount of snow the snowiest city receives on average every year, "x". It is known that this city receives 113.9 more inches than the second snowiest, which receives 223.8 inches on average every year. Therefore, the expression for "x" is:

$x = 233.8 + 113.9\\x = 347.7 \text{ inches}$

The snowiest city receive 347.7 inches on average each year.

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2 years ago

84. Use properties of exponents to rewrite each expression with only positive, rational exponents. Then find the numerical value

Yakvenalex [24]

Answer:

a) 1/27

b) 16

c) 1/8

Step-by-step explanation:

a) $x^{-3/2}$

One of the properties of the exponents tells us that when we have a negative exponent we can express it in terms of its positive exponent by turning it into the denominator (and changing its sign), so we would have:

$x^{-3/2}=\frac{1}{x^{3/2} }$

And now, solving for x = 9 we have:

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

b) $y^{4/3}$

This is already a positive rational exponent so we are just going to substitute the value of y = 8 into the expression

$y^{4/3}=8^{4/3}=16$

c) $z^{-3/4}$

Using the same property we used in a) we have:

$z^{-3/4}=\frac{1}{z^{3/4} }$

And now, solving for z = 16 we have:

$\frac{1}{z^3/4} } =\frac{1}{16^{3/4} } =\frac{1}{8}$

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3 years ago

Need to know answer please

makvit [3.9K]

Answer:

IDK

Step-by-step explanation:

Sorry

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3 years ago

F(x) = x^2 + x - 11

Stella [2.4K]

Answer: y = − $\frac{39}{4}$

Step-by-step explanation:

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2 years ago

One of the factors of the polynomial x3 − 5x2 is x + 3. What is the other factor?

olya-2409 [2.1K]

The answer is letter c. x2-8x+24-[72/(x+3)]. If you do not know how to solve this using the long division method, you can always evaluate the options through the process of elimination first. Since the degree of the other factor is already 1 (x to the power of 1), you know that option d. is not the correct answer because you know that the other factor must be raised to the power of 2. That leaves us with a, b and c. Working backwards and multiplying the given factor (x+3) with the factor in b, gives us x3-5x2+72. So from there, you know that you have to eliminate 72, which can be removed when it is subtracted by itself. Letter c does just that. Try multiplying (x+3) and option c for yourself :).

8 0

2 years ago

Read 2 more answers