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xenn [34]
2 years ago
6

Does -8x+8=0 have a solution ?

Mathematics
1 answer:
dusya [7]2 years ago
5 0

Answer:

Yes it does. It is 1.

Step-by-step explanation:

Subtract 8 from both sides then divide both sides by -8 and you get 1.

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Calculate the amount of air in a room 6m long, 5m wide and 3mm high.​
kherson [118]

Answer:

90.000 m³

Step-by-step explanation:

  • L = 6 m
  • W = 5 m
  • H = 3 mm = 3.000 m

V = L × W × H

V = 6 × 5 × 3.000

V = 30 × 3.000

V = 90.000 m³

4 0
2 years ago
Read 2 more answers
If f(x) = 3 - 1 and g(x) = x + 2, find (f-g)(x)
Kazeer [188]

Answer:

2x² + 4x

Step-by-step explanation:

= (3 - 1)(x + 2)(x)

= (2)(x + 2)(x)

= (2x + 4)(x)

= 2x² +4x

3 0
3 years ago
Find the product. If the result is negative, enter "-". If the result is positive, enter "+". -7(- a2 ) 2 ( -b3 ).
m_a_m_a [10]

Answer:

The product is positive, thus it is \bold{+7a^4b^3}

Step-by-step explanation:

The full question in proper notation is:

"Find the product. If the result is negative, enter "-". If the result is positive, enter "+".

-7(-a^2)^2(-b^3)"

We have to work with it using Order of operations know as well as PEMDAS, thus expression inside parenthesis go first and exponents.

On this expression we have to work with exponents

(-a^2)^2 = (-a^2)(-a^2) =a^4

Thus we get

-7(-a^2)^2(-b^3)=-7a^4(-b^3)

Lastly we can work with multiplication and remembering that the multiplication of two negative signs becomes positive.

-7(-a^2)^2(-b^3)=7a^4b^3

So the final simplified expression is \bold{7a^4b^3}

5 0
3 years ago
Read 2 more answers
Given the triangle below, what is m<br> A. 46.2<br> B. 41.40<br> C. 48.4<br> D. 38.6°
Brrunno [24]

Answer:

B 41.4

Step-by-step explanation:

complete Pythagoras for general triangles :

c² = a² + b² - 2ab×cos(C)

with "c" being the side opposite of the angle C.

=>

8² = 10² + 12² - 2×10×12×cos(C)

64 = 244 - 240×cos(C)

240×cos(C) = 244 - 64 = 180

cos(C) = 180/240 = 18/24 = 3/4 = 0.75

C = 41.40962211... ≈ 41.4

5 0
3 years ago
Find the product.<br> (3n - 1)(7n-7)
slega [8]

Answer:

21n² - 28n + 7

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

3n(7n - 7) - 1(7n - 7) ← distribute both parenthesis

= 21n² - 21n - 7n + 7 ← collect like terms

= 21n² - 28n + 7

6 0
3 years ago
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