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OlgaM077 [116]
3 years ago
15

The commutative property of addition states that you can change the order of addends in a sum. The associative property of addit

ion states that you can change the grouping of addends in a sum. Use an example to show how the communative property of addition and the associative property of addition apply to adding decimals
Mathematics
1 answer:
Anna11 [10]3 years ago
5 0
Commutative:
a+b+c=a+c+b
1.3+23.4+3.4=23.4+1.3+3.4

Associative:   
(a+b)+c=a+(b+c)

(1.3+3.4)+23.4=1.3+(3.4+23.4)
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Colt1911 [192]

assuming you mean i^{77} where i=\sqrt{-1}

ok, notice a pattern in the exponent

i^1=i=\sqrt{-1}

i^2=-1

i^3=-\sqrt{-1}=-i

i^4=1

i^5=i=\sqrt{-1}

hum, so it goes 1,2,3,4, then repeats

ok, so every 4, the cycle repeats

how far  up is 77 from a multipule of 4?

4*19=76

76 is 1 away from 77

so i^{77}=(i^{76})(i^1)=

(i^4)^{19}(i)=(1)^{19}i=i

the answer is B

8 0
3 years ago
Read 2 more answers
Taseem’s loose change consists of dimes and quarters. When you ask her how many of each type of coin she has, she gives you the
sweet-ann [11.9K]

The statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

0.1x + 0.25y = 19.9 and

x + y = 100

Let x = number of dimes

y = number of quarters

After solving the above system of equations by substitution method.

\rm \dfrac{398-5y}{2}+y=100

y = 66

\rm x=\dfrac{398-5\cdot \:66}{2}

x = 34

Thus, the statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66

Learn more about the linear equation here:

brainly.com/question/11897796

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4 0
2 years ago
12. A man planted trees on both sides of
netineya [11]

Answer:

1000 trees : Can u plz give me the brainliest answer? Plz!!!!!!!!!!!!!!!

Step-by-step explanation:

5000m divided by 5m = 1000 trees

Have a nice day!!!!!! :-)

<u>KA</u>

3 0
3 years ago
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Jasmine found a wooden jewelry box shaped like a right rectangular prism. What is the volume of the jewelry box?
Rus_ich [418]

Answer:

The volume of the jewelry box will be given by,

\text{Volume}=\text{l}\times \text{w}\times\text{h}

Step-by-step explanation:

It is provided that, Jasmine found a wooden jewelry box shaped like a right rectangular prism.

Consider the diagram below for the shape of a right rectangular prism.

The volume of a right rectangular prism is given by the formula:

\text{Volume}=\text{l}\times \text{w}\times\text{h}

Here,

l = length of the rectangle

w = width of the rectangle

h = height of the rectangular prism

Thus, the volume of the jewelry box will be given by,

\text{Volume}=\text{l}\times \text{w}\times\text{h}

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3 years ago
Lisa drinks 3 1/2 pints of milk a day. How much is this in cups?
olga nikolaevna [1]
7 cups; there are two cups per pint, so three and a half pints equals seven cups of milk.
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