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3 years ago

Simplify the expression 7y+6-1+12y

Mathematics

2 answers:

Olegator [25]3 years ago

5 0

Answer:

19y+5

Step-by-step explanation:

Katena32 [7]3 years ago

3 0

Answer: 5+5y

Step-by-step explanation:

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He charges $15 per hour to mow lawns and $20 per hour for gardening.

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Answer:

Step-by-step explanation:

he can make 300 dollars per week by doing either or. so if you're asking whether the statement is correct, it is

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2 years ago

Find the limit of the function by using direct substitution.

serg [7]

Answer:

Option a.

$\lim_{x \to \frac{\pi}{2}}(3e)^{xcosx}=1$

Step-by-step explanation:

You have the following limit:

$\lim_{x \to \frac{\pi}{2}{(3e)^{xcosx}$

The method of direct substitution consists of substituting the value of $\frac{\pi}{2}$ in the function and simplifying the expression obtained.

We then use this method to solve the limit by doing $x=\frac{\pi}{2}$

Therefore:

$\lim_{x \to \frac{\pi}{2}}{(3e)^{xcosx} = \lim_{x\to \frac{\pi}{2}}{(3e)^{\frac{\pi}{2}cos(\frac{\pi}{2})}$

$cos(\frac{\pi}{2})=0\\$

By definition, any number raised to exponent 0 is equal to 1

$\lim_{x\to \frac{\pi}{2}}{(3e)^{\frac{\pi}{2}cos(\frac{\pi}{2})} = \lim_{x\to \frac{\pi}{2}}{(3e)^{\frac{\pi}{2}(0)}\\\\$

$\lim_{x\to \frac{\pi}{2}}{(3e)^{0}} = 1$

Finally

$\lim_{x \to \frac{\pi}{2}}(3e)^{xcosx}=1$

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3 years ago

A race is 10 kilometers long. Markers will be placed at the beginning and end of the race course and at each 500 meter mark. How

anzhelika [568]

The answer is 20. You use 20 markers for it all.

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3 years ago

What is the name of the following<br> polynomial expression<br><br><br>4x²+x-3

nadya68 [22]

Answer:

It has 3 terms so it is a trinomial.

I think

Step-by-step explanation:

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2 years ago

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vladimir1956 [14]

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2 years ago