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photoshop1234 [79]
3 years ago
9

What is the answer for 3.7-4.2n-3n+8

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0

The Answer:

11.7 - 7.2n

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The length of each side of a cube is x + 1 inches. What is the volume of the cube in cubic inches?
castortr0y [4]

Answer:

V = x³ + 3x² + 3x + 1 in³

Step-by-step explanation:

The volume (V) of a cube is calculated as

V = s³ ( where s is the side ) , then

V = (x + 1)³

   = (x + 1)(x + 1)(x + 1) ← expand second pair using FOIL

   = (x + 1)(x² + 2x + 1) ← distribute

   = x³ + 2x² + x + x² + 2x + 1 ← collect like terms

   = x³ + 3x² + 3x + 1

3 0
3 years ago
Exercise 5.2<br>Which of the capital letters of the English alphabet are symmetrical?​
daser333 [38]

Answer:

The Capital letter of English alphabet that are symmetric are B,C,D,E,H,I,K,OX

Step-by-step explanation:

hope it helps

4 0
3 years ago
If 5^n x 5^3 = 5^6, then n is _____.<br><br> A) 18<br> B) 2<br> C) 3<br> D) 9
Eddi Din [679]
<h3>Answer:  C) 3</h3>

The rule we'll use is a^b*a^c = a^(b+c). So we add the exponents.

That means 5^n*5^3 = 5^(n+3)

So 5^n*5^3 = 5^6 turns into 5^(n+3) = 5^6

The bases are equal to 5, so the exponents be equal to one another.

n+3 = 6

n+3-3 = 6-3

n = 3

So 5^3*5^3 = 5^(3+3) = 5^6.

6 0
3 years ago
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What is the area of a square,<br> in square feet, whose perimeter<br> is 150 feet?
Tomtit [17]

Answer:

150/4 = 37.5

37.5 times 37.5 is

<h2>1406.25 sqft²</h2>

Step-by-step explanation:

Brainlist please

6 0
2 years ago
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Find the number that is 42 less than twice the<br> opposite of itself.
maria [59]
42 - -84=-42

Hope this helps :)
8 0
3 years ago
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