The first problem please

Mathematics

1 answer:

Nookie1986 [14]3 years ago

4 0

3x^2 + 5x + 25
3 (3)^2 + 5(3) + 25
3 (9) + 5(3) + 25
27+ 15 +25
67

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Step-by-step explanation:

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3 years ago

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The price of a flight was increased by 3% to £650. What was the price before the increase? Give your answer to the nearest penny

Marta_Voda [28]

Answer:

£631.07

Step-by-step explanation:

Increasing a value by 3% is the same as taking 103% of it - you have the original price (100%) plus an additional 3% of it. Let's call the original price here p. We're told that after a 3% increase, the price goes up to £650. Put another way: 103% of p is £650. In equation form:

$1.03p=650$

To solve for p, we can simply divide both sides of our equation by 1.03 to get

$p=650/1.03\approx631.07$

So our orignal amount, to the nearest penny, was £631.07

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3 years ago

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The degree of the product is the ____ of the degrees of the factors

Leno4ka [110]

Answer:

Highest

Step-by-step explanation:

This is true because the largest degree is the one that influences the graph and ultimately the end behavior the most. The question you have is simply the a definition-property of degrees.

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3 years ago

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What is the greatest common factor of 4k, 18k4, and 12?

Setler [38]

Answer: The greatest common factor is 2.

Step-by-step explanation: We are given to find the greatest common factor of the following expressions:

$E_1=4k,~~E_2=18k^4,~~E_3=12.$

<u>Greatest Common Factor:</u> The GCF of two or more numbers (expressions) is the greatest factor that divides all the numbers or expressions.

We have

$E_1=4k=2\times 2\times k,\\\\E_2=18k^4=2\times 3\times 3\times k\times k\times k\times k,\\\\E_3=12=2\times 2\times 3.$