3 years ago

Hey can anybody give me a teachers answer key on dis lessons

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

3 0

Hm maybe look up the name of the document and put pdf answers

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Hello, I need help with this problem.

Brilliant_brown [7]

Step-by-step explanation:

put 3.9, 3.99,........ to 4.1 as value of x in ((x-4)÷(x^2-2x-4)) than you will get f(x)

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3 years ago

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a theater is designed with 15 seats in the first row, 19 in the second, 23 in the third, and so on. if this seating pattern cont

marusya05 [52]

Answer:

<u>131 seats</u> are in the 30th row.

Step-by-step explanation:

The theater is designed with the first row there are 15 seats, in second row 19 seats and in the third row there are 23 seats.

Now, to find the number of seats in the 30th row.

So, we get the common difference( $d$ ) from the arithmetic sequence first:

$19-15=4.$

Thus, $d=4.$

So, the first tem $a(1)$ = 15.

The number of last row ( $n$ ) = 30.

Now, to get the number of seat in the 30th row we put formula:

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

$a(30)=15+4(30-1)$

$a(30)=15+4\times 29$

$a(30)=15+116$

$a(30)=131$

Therefore, 131 seats are in the 30th row.

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4 years ago

a machine worked for 5 hours and it used 4 kilowatts of eletricity . The machine used ___ of kilowatts each hour it worked,

Ivenika [448]

The answer is 0.8 kilowatts because 4 divided by 5 is 0.8

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3 years ago

Least common multiple of 12,18and 4

nata0808 [166]

The least common multiple is 2. 2 is the highest number that goes in to each of these numbers.

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3 years ago

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What would be the value of the number in the 30th position

REY [17]

If I saw that correctly each position that's your multiplier so look at your 3rd position and make the 3 into a 30 so it would be 270 :)

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4 years ago