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Roman55 [17]
3 years ago
13

HELP PLEASE pre-calc

Mathematics
1 answer:
nikitadnepr [17]3 years ago
5 0
the second choice, and the last choice are correct.

the first one, x can be any number.
the second one, x can be any number but not -1(the denominator cannot be 0)
the third one, x has to be ≥ 1/2, because 2x-1 cannot be negative.
the fourth one, x can be any number but not -1 or -4
the last one, x can be any number but not -3
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Determine the 10th term from the end of the AP 4, 9, 14​
77julia77 [94]

Answer:

<h2>The answer is 49</h2>

Step-by-step explanation:

Since the sequence above is an arithmetic sequence

For an nth term in an arithmetic sequence

A(n) = a + ( n - 1)d

where a is the first term

n is the number of terms

d is the common difference

To find the 10th term of the sequence first find the first term and the common difference

From the question

a = 4

d = 9 - 4 = 5 or 14 - 5 = 9

Since we are finding the 10th term

n = 10

Substitute the values into the above formula

That's

A(10) = 4 +(10-1)5

= 4 + 9(5)

= 4 + 45

We have the final answer as

<h3>A(10) = 49</h3>

Hope this helps you

6 0
3 years ago
A boat is heading due north at 15 mph. The current is flowing southeast at 5 mph. Find the actual bearing and speed of the ship
Dahasolnce [82]

Answer:

3 Mph

Step-by-step explanation:

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5 0
3 years ago
Which of the following is the product of the rational expressions shown
Alexus [3.1K]

Answer: x = 0; x=10

Step-by-step explanation:

\frac{x+2}{x-4} *\frac{3x}{x+4}\\ \\x+2(x+4) = x-4(3x)\\x^{2} +2x+ 4x + 8 = 3x^{2} -12x\\2x+4x+12x =3x^{2} - x^{2} \\20x= 2x^{2} \\10x = x^2\\x=0\\x=10

Hope this helps!

6 0
2 years ago
NEED HELP ASAP PLS !!!It is stated that two quantities vary inversely if one changes by the inverse ratio of the second. So, wha
viktelen [127]

Answer:

If the first quantity doubles, the second is divided by two. If the first quantity triples, the second is divided by 3.

Step-by-step explanation:

It’s the second sentence in the online content site they gave.

7 0
3 years ago
A rectangular fence is 27.8 meters by 34.2 meters.what is its the perimeter answer
storchak [24]

The perimeter of a rectangle is calculated as

Perimeter= 2(length + breadth )

So, Perimeter = 2*length + 2*breadth

Now we are given the length as 34.2 meters and breadth as 27.8 meters

So the perimeter will be

2(34.2+27.8) meters

(2*34.2) + (2*27.8)

which equals 2(62) meters

Hence Perimeter = 124 meters

5 0
3 years ago
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