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exis [7]
3 years ago
7

Is anyone good in geometry.???????​

Mathematics
1 answer:
Vadim26 [7]3 years ago
8 0

Answer:

x = 26

Step-by-step explanation:

2x + 10 = 62

2x = 52

/         /

2        2

x = 26

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Please help equation below
qaws [65]

Answer:

3y √21 + 2 y√15

Step-by-step explanation:

To simply, we open up the bracket

We have this as;

√(189y^2) + √60y

= 3y √21 + 2 y√15

7 0
2 years ago
How do you do series with an n
SOVA2 [1]
The problem can be solved step by step, if we know certain basic rules of summation.  Following rules assume summation limits are identical.
\sum{a+b}=\sum{a}+\sum{b}
\sum{kx}=k\sum{x}
\sum_{r=1}^n{1}=n
\sum_{r=1}^n{r}=n(n+1)/2

Armed with the above rules, we can split up the summation into simple terms:
\sum_{r=1}^n{40r-21n+8}=n
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=40\frac{n(n+1)}{2}-21n^2+8n
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=> (a) f(x)=28n-n^2
=> f'(x)=28-2n 
=> at f'(x)=0 => x=14
Since f''(x)=-2 <0  therefore f(14) is a maximum
(b) f(x) is a maximum when n=14

(c) the maximum value of f(x) is f(14)=196
4 0
2 years ago
Horace take a taxi uptown and the fare is $12.78 he wants to give the taxi a 10% tip if Horace gives the driver a $20 bill how m
Olegator [25]

Answer:

$5.94

Step-by-step e

12.78 + 10% (1.28) = 14.06

20.00 - 14.06 = 5.94

7 0
3 years ago
Factorization of Trinomial of x2^ - 8x - 48
cricket20 [7]
12 and -4 or (x-12) (x+4)
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Tju [1.3M]

Answer:

3.14×20

20=diameter

=62.8cm

4 0
3 years ago
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