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Komok [63]
3 years ago
7

Simplify 3√45 - √125 + √200 - √50

Mathematics
1 answer:
irina1246 [14]3 years ago
4 0
Hope this helps 

Good luck mate :P

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Find the sum of the counting numbers from 1 to 25 inclusive. In other words, if S = 1 + 2 + 3 + ... + 24 + 25, find the value of
Anastaziya [24]

Answer:

325

Step-by-step explanation:

You must have heard about Arithmetic Progressions (AP)

Arithmetic progressions are a series of numbers such that every successive number is the sum of a constant number and the previous number.

Our very own counting numbers form AP

For example :-

2 = 1 + <u>1</u>

3 = 2 + <u>1</u>

4 = 3 + <u>1</u>

The number in bold (1) is that constant number which is added to a number to form its successive number.

To find the sum of series forming AP, we use the formula :-

sum =  \frac{n}{2} \{ a  + a  _{n}  \}

here,

  • n is the number of terms
  • a is the first number of the series
  • an is the last number of the series

So we'll use all this information to find the sum of continuous numbers from 1 to 25 where 1 is the first term(a) and 25 is the last(an).

and n is 25

S  =   \frac{25}{2}\{ 1  +25\}

=  \frac{25 \times 26}{2}

= 25  \times 13

= 325

So, the value of S comes out to be 325.

8 0
3 years ago
Read 2 more answers
How are numerical expressions and algebraic expressions different
lozanna [386]
Numerical expressions use numbers and algebraic expressions use variables.
7 0
3 years ago
4) Find the value of x in the given diagram. (3 points)
Oxana [17]

Answer:

113

Step-by-step explanation:

The given shape has 6 angles so it's a hexagon and the sum of interior angles in a hexagon is = 720

To find the the value of x we need to add all given values up and subtract it from 720:

88 + 142 + 105 + 136 + 136 + x = 720

607 + x = 720 subtract 607 from both sides

x = 113

3 0
2 years ago
I need help I'm not so good with geometry
cricket20 [7]
What's C and A mean?
5 0
4 years ago
Paulita reads an average of 20 pages each day.She has 6 days to read 10 to the 2 pages.Will she finish her reading in 6 days?Exp
Free_Kalibri [48]

yes

10² = 10 × 10 = 100

divide 100 by her daily average of 20

\frac{100}{20} = 5

She should be able to read 100 pages in 5 days


4 0
4 years ago
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