There are 20 nickels in one dollar. Write an equation to find the number of nickels n in any number of dollars d

Mathematics

1 answer:

n200080 [17]3 years ago

4 0

5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5

20 nickles

20•5=1.00

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Please help on b (left of c) and c !!!

vesna_86 [32]

Alrighty

remember
$(ab)^c=(a^c)(b^c)$
and
$x^\frac{m}{n}=\sqrt[n]{x^m}$
and
$(x^m)^n=x^{mn} and [tex]x^0=1$ for all real numbers x
and
$x^{-m}=\frac{1}{x^m}$

b.
$(x^5y^4)^\frac{1}{2}=((x^5)^\frac{1}{2})((y^4)^\frac{1}{2})$ =
$(x^\frac{5}{2})(y^\frac{4}{2})=(\sqrt{x^5})(\sqrt{y^4})=x^2y^2\sqrt{x}$

c.
x^0=1
so
that (x^-3y)^0=1
because exponents first in pemdas
so we are left with
x^2y^-1
$x^2y^{-1}=(x^2)(y^{-1})=(x^2)(\frac{1}{y^1})=\frac{x^2}{y}$

3 0

3 years ago

Read 2 more answers

Use the Law of Cosines to determine the length of the third side of the triangle.

Alchen [17]

<u>Corrected Question</u>

Given a triangle with two sides 4.1 cm and 6.7cm and an Included angle of $35^\circ$ . Use the Law of Cosines to determine the length of the third side of the triangle.