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Shkiper50 [21]
3 years ago
6

Simplify the equation 28 - 6n + 7(2n -8)-3n

Mathematics
2 answers:
Flauer [41]3 years ago
6 0

Answer:

5n-28

Step-by-step explanation:

28-6n+7(2n-8)-3n

28-6n+14n-56-3n

28+8n-56-3n

28-56+8n-3n

-28+5n

5n-28

BaLLatris [955]3 years ago
4 0
Answer: 5n - 28

first, distribute 7 to (2n-8), which would be 14n - 56

rewrite to have all common terms next to each other, which would be:

-6n + 14n - 3n + 28 - 56

combine all like terms.

5n - 28
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In a class of 40 students, 5 like neither Nokia nor
Vikki [24]

Answer:

No student liked only Nokia

Step-by-step explanation:

The information can be illustrated as shown on the Venn diagram.

The number of students who liked only Nokia is x.

The sum of all regions in the Venn diagram should be 40.

We add all to get:

5 + 5 + 30 + x = 40

40 + x = 40

x = 40 - 40

x = 0

Therefore no one liked only Nokia

8 0
3 years ago
We are two integers whose product is -4 and whose sum is 3, what are we?
Marrrta [24]
The two Integers are -1 and 4. Since the product of -1 and 4 is -4, Also since the sum of 4 and -1 is 3 that would be the two integers you are looking for.
4 0
3 years ago
What are the possible numbers of positive, negative, and complex zeros of f(x) = x6 − x5 − x4 + 4x3 − 12x2 + 12?
FrozenT [24]
Using <span>Descartes' rule of signs.
There are 4 changes of signs of coefficients:
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- to + (-x^4+4x^3)
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3 0
3 years ago
Read 2 more answers
Polygon ABCD is dilated by a scale factor of 2 with the center of dilation at the origin to create polygon A′B′C′D′. If the endp
liq [111]

Answer:

A'B' = 34 units

Step-by-step explanation:

Since the dilatation is centred at the origin , then multiply the coordinates by 2

A' = (2(0), 2(- 7) = (0, - 14 )

B' = (2(8), 2(8) = (16, 16)

Calculate the length using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = A'(0, - 14) and (x₂, y₂ ) = B'(16, 16)

d = \sqrt{(16-0)^2+(16+14)^2}

   = \sqrt{16^2+30^2}

   = \sqrt{256+900}

   = \sqrt{1156}

   = 34

3 0
3 years ago
Simplify 5^-2 x 5^5 x 5
tatiyna
5^-2 = .04
5^5 = 3125

.04 x 3125 x 5 = 625





4 0
3 years ago
Read 2 more answers
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