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3 years ago

Is the number 39 a prime or composite

2 answers:

8 0

Hello.

39 is a composite number.
A prime number can only be divisible by 1, and itself. This is not the case for 39.

1, 3, 13, 39 can fit into it. Thus it is not a prime number.

Bumek [7]3 years ago

4 0

39 is not<span> a </span><span>prime number</span>

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Select the correct answer. What is the domain of the function f(x) = 2x + 5?

lawyer [7]

The domain of the function is the complete set of possible values of the independent variable. (−∞,∞),{x|x ∈ R}

<h3>What is the domain function?</h3>

The domain is the set of values for which the given function is defined.

The given function;

f(x) = 2x + 5

The domain of the given function is all real numbers except where the function is undefined.

In this case, there is no real number that makes the function undefined.

The domain of the function is the complete set of possible values of the independent variable.

(−∞,∞),{x|x ∈ R}

The range is the set of all valid y values.

Learn more about appropriate domain here:

brainly.com/question/20073127

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4 0

1 year ago

Need some help with this question please.

enyata [817]

Anwser:

Y= -2(x)+5

Step by step explanation

Math class

4 0

2 years ago

Question is in picture

stiv31 [10]

Answer:

27.5

Step-by-step explanation:

pythagorean theorem. a^2+b^2=c^2.

so 12^2+b^2=30^2

meaning 144+b^2=900

900-144=756

square root 756

b=27.5

5 0

2 years ago

The owner of a cattle ranch would like to fence in a rectangular area of 3000000 m^2 and then divide it in half with a fence dow

Reika [66]

If you notice the picture below, the amount of fencing, or perimeter, that will be used will be 3w + 2l

now $\bf \begin{cases}
A=l\cdot w\\\\\
A=3000000\\
----------\\
3000000=l\cdot w\\\\
\frac{3000000}{w}=l
\end{cases}\qquad thus
\\\\\\
P=3w+2l\implies P=3w+2\left( \cfrac{3000000}{w} \right)\implies P=3w+\cfrac{6000000}{w}
\\\\\\
P=3w+6000000w^{-1}\\\\
-----------------------------\\\\
now\qquad \cfrac{dP}{dw}=3-\cfrac{6000000}{w^2}\implies \cfrac{dP}{dw}=\cfrac{3w^2-6000000}{w^2}
\\\\\\
\textit{so the critical points are at }
\begin{cases}
0=w^2\\\\
0=\frac{3w^2-6000000}{w^2}
\end{cases}$

solve for "w", to see what critical points you get, and then run a first-derivative test on them, for the minimum

notice the $0=w^2\implies 0=w$ so. you can pretty much skip that one, though is a valid critical point, the width can't clearly be 0

so.. check the critical points on the other

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2 years ago

Claire paid $5.75 for a movie ticket. She wants to buy popcorn for $4.95 and a drink for $3.98. Claire brought $15 to the theate

Evgesh-ka [11]

The answer is C. hope this helped

4 0

3 years ago

Read 2 more answers