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prohojiy [21]
3 years ago
9

Plz help due tomorrow

Mathematics
1 answer:
OLEGan [10]3 years ago
6 0

Answer:

2nd one and 4th one

Step-by-step explanation:

Number 2 is just putting the expression in a different order, but it is still equivalent.

Number 4 just added an extra plus sign which doesn't cause anything for the expression, it's really just a filler.

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What is the 32nd term of the arithmetic sequence where<br> a1 = 14 and a13 = -58?
liq [111]
The nth term of an arithmetic sequence is found from:
n_{th}\ term=a+(n-1)d
Plugging in the given values, we get for the 13th term:
-58=14+12d
12d =-58 - 14 = -72
d = -6
So, the 32nd term is:
a_{32}=14+(32-1)-6=-172
5 0
3 years ago
Determine if √4 is rational or irrational and give a reason for your answer.
Anika [276]

Answer:

rational

Step-by-step explanation:

Because if you take the square root of 4 you get 2

if it was irrational then it would be a decimal or fraction

(plz mark braillist)

7 0
3 years ago
Tucker bought a new speaker priced at $45 and the sales tax is 7%. What is the total cost of the speaker after tax?
OleMash [197]
The total cost is $41.85


Amount Saved = 45 x 7 / 100
Amount Saved = 315 / 100
Amount Saved = $3.15 (answer).
In other words, a 7% discount for a item with original price of $45 is equal to $3.15 (Amount Saved).
Note that to find the amount saved, just multiply it by the percentage and divide by 100.
3 0
3 years ago
Read 2 more answers
Suppose you have 30CD's. You know that you have 11 more CD's than your friend. Write and solve an equation to find the number of
Serga [27]

Answer:

30 - 11 = 19        19 CD's

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
F(n)=4n <br> g(n)=n2+2n <br> find f(g(-6))
ELEN [110]

Answer:

When f(n) = 4n and g(n) = n² + 2n, f(g(-6)) = 96.

Step-by-step explanation:

To evaluate f(g(-6)), first find g(-6).

g(n) = n² + 2n

Substitute value.

g(-6) = (-6)² + 2(-6)

Square -6. Remember that (-x)² = x²

g(-6) = 36 + 2(-6)

Multiply 2 and -6.

g(-6) = 36 - 12

Subtract 12 from 36.

g(-6) = 24.

Now knowing this, substitute that value into f(n).

f(g(-6)) = f(24)

f(n) = 4n

Substitute value.

f(24) = 4(24)

Multiply 4 and 24.

f(24) = 96.

8 0
2 years ago
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