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allsm [11]
2 years ago
9

What is 2/5 x 4 help me please

Mathematics
2 answers:
SashulF [63]2 years ago
7 0

Answer: 1.6

Step-by-step explanation:

Kazeer [188]2 years ago
3 0

Answer:

1.6

Step-by-step explanation:

2/5×4

=8/5

=1.6

So the answer is 1.6

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Lobachevsky's Negation created spherical geometry.<br>O A. True<br>O B. False​
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Answer:

True

Step-by-step explanation:

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3 years ago
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Write the difference in factored form. (24x4 - 15x2 + 6x) - (10x4 + 5x2 - 4x)​
Pachacha [2.7K]

Answer:

The factored difference is: 2x(7x^3 - 10x + 5)

Step-by-step explanation:

Difference in non factored form:

To find the difference in non-factored form, we subtract the common terms. So

24x^4 - 15x^2 + 6x - (10x^4 + 5x^2 - 4x) = 24x^4 - 10x^4 - 15x^2 - 5x^2 + 6x + 4x = 14x^4 - 20x^2 + 10x

Greatest common factor:

Of the exponents: Between x^4, x^2 and x, it is the one with the lowest exponent, so x.

Between 14, 20 and 10:

14 - 20 - 10|2

7 - 10 - 5

So 2

The gcf is 2x, which means that the factored expression is:

2x(\frac{14x^4}{2x} - \frac{20x^2}{2x} + \frac{10x}{2x}) = 2x(7x^3 - 10x + 5)

The factored difference is: 2x(7x^3 - 10x + 5)

8 0
3 years ago
A square picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. Find the area of the mat that
Andreas93 [3]

Answer:

52^2 - 32^2 = 1680 inches²

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A dolphin swims 665,280 feet in 3 hours. Use the formula dart, where d represents distance, r represents rate, and t represents
barxatty [35]

Step-by-step explanation:

a) r=d/t ( same as formula of speed)

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A school paid $31.25 for each calculator.
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Answer:

500/31.25=16

Step-by-step explanation:

The school bought 16 calculators

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