3 years ago

Find the product 4 times 80

Mathematics

1 answer:

Zolol [24]3 years ago

3 0

The answer is 320 to find the product you can just do 4 times 8 and then add a zero

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Arnold needs to simplify the expression below.

Lunna [17]

Answer:

0.5x7

Step-by-step explanation:

Assuming that the original expression is $4.3*3+ 11(8.2-0.5*7)-6$ , according to PEMDAS multiplication takes priority over addition and subtraction,, and therefore, from the choices given, 0.5 * 7 must be performed first.

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3 years ago

Read 2 more answers

Value of complex number i^7+1/i^4

Vera_Pavlovna [14]

$i^7 + \dfrac 1{i^4}\\\\=i^2 \cdot i^2 \cdot i^2 \cdot i + \dfrac 1{i^2 \cdot i^2}\\\\=(-1)(-1)(-1)i + \dfrac 1{(-1)(-1)} ~~~;[ i^2 = -1] \\\\\ = (-1)^3 i+ \dfrac 1{(-1)^2} \\\\=-i+1$