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2 years ago

Seven increased by the product of two numbers Seven increased by the product of two numbers

Mathematics

2 answers:

kirill115 [55]2 years ago

7 0

<u>Answer:</u> The expression for the given statement is $7+(x\times y)$

<u>Step-by-step explanation:</u>

We are given a statement:

Seven increased by the product of two numbers

Let the first number be considered as 'x' and second number be considered as 'y'

'Increased' in the above statement means addition operation.

'Product' in the above statement means multiplication operation.

Hence, the expression for the given statement is $7+(x\times y)$

kipiarov [429]2 years ago

6 0

The answer would be 7+x*x the variables stand for the 2 unknown numbers and the product is the * symbol. Increased stands as the plus symbol. Hope this helps!

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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.
$\sum{a+b}=\sum{a}+\sum{b}$
$\sum{kx}=k\sum{x}$
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$\sum_{r=1}^n{r}=n(n+1)/2$

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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=> f'(x)=28-2n
=> at f'(x)=0 => x=14
Since f''(x)=-2 <0 therefore f(14) is a maximum
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2 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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