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r-ruslan [8.4K]
3 years ago
8

Evaluate: 45 n=1(4n +9) = [?]

Mathematics
1 answer:
Alenkasestr [34]3 years ago
7 0

Answer: 4545

Step-by-step explanation:

Split the summation into smaller summations that fit the summation rules.

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The price of a television was reduced $250 to $200. By what percentage was the price of the television reduced
Lubov Fominskaja [6]

Answer:

The percentage of the price of television reduced to <u>20%</u>.

Step-by-step explanation:

Given:

The price of a television was reduced $250 to $200.

Now, to find the percentage of the reduced price of television.

So, to get the reduced amount of television:

Old price = $250.

New price = $200.

Reduced amount = $250 - $200 = $50.

Now, to get the percentage of price reduced:

\frac{Reduced\ amount}{Old\ price} \times 100

=\frac{50}{250}\times 100

=\frac{5000}{250}

=20\%.

Therefore, the percentage of the price of television reduced to 20%.

3 0
3 years ago
What are the answers
Marizza181 [45]

Answer:

Given any straight line and a point not on it, there "exists one and only one straight line which passes" through that point and never intersects the first line, no matter how far they are extended. This statement is equivalent to the fifth of Euclid's postulates, which Euclid himself avoided using until proposition 29 in the Elements. For centuries, many mathematicians believed that this statement was not a true postulate, but rather a theorem which could be derived from the first four of Euclid's postulates. (That part of geometry which could be derived using only postulates 1-4 came to be known as absolute geometry.)

Also draw the line straight line them up. To me it would be best if you use a ruler.

8 0
3 years ago
Write the expression in the standard form a+b i <br>(8-8i) + (1+6i )= (simplify the answer)
kotegsom [21]

Answer:

Step-by-step explanation:

(8 - 8i) + (1 + 6i)

8 + 1 - 8i + 6i

9 - 2i

4 0
3 years ago
Which Pairs are additive inverses?<br> a. 6,-(-6)<br> b. -7,7<br> c.-7,-7<br> d.7,7<br> e.6,-6
xz_007 [3.2K]

I was never sure of what the "additive inverse" is. 
So, just now, just for you, I went and looked it up.

The additive inverse of any number ' A ' is the number
that you need to ADD to A to get zero.  That's all !

So now, let's check out the choices:

a), 6, -(-6)

That second number, -(-6), is the same as +6 .
So the two numbers are the same.
Do you get zero when you add them up ?  No.

b). -7, 7
What do you get when you add -7 and 7 ?
You get zero.
So these ARE additive inverses.

c). -7, -7
What do you get when you add -7 to -7 ?
You get -14 .  That's not zero, so these
are NOT additive inverses.

d).  7, 7
What do you get when you add 7 to 7 ?
You get 14.  That's NOT zero, so these
are NOT additive inverses.

e).  6, -6
What do you get when you add 6 to -6 ?
You get zero.
So these ARE additive inverses.

What do we end up with from the list of choices:

a).,  c).,  and d). are NOT additive inverses.

b). and e). ARE additive inverses.

7 0
3 years ago
Read 2 more answers
Put the numbers in order from smallest to largest to find the the five-number summary. 14, 18,28,29,32,44,48,50,65
dem82 [27]

Answer:

smallest number :14,18,28 29,32

largest number :65,50,48,44,32

4 0
3 years ago
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