Can someone please help mee ? Will give brainlist

Mathematics

1 answer:

Vaselesa [24]3 years ago

8 0

Answer:

I told my parents and x= 18

Step-by-step explanation:

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A man s five times as old as his son.in three years time,the product of their ages will be 380.

Mademuasel [1]

Answer:

son age: X

man_age= 5X

in 3 years: we have: (man_age+3)(X+3)=380

we can replace the man age by 5X and we get :

(5X+3)(X+3)=380

it is a quadratic equation with 2 solutions. One negative and 7

The solution is thus 7, since age can not be negative.

The son is thus 7 and the dad 5 times more 35

Step-by-step explanation:

6 0

4 years ago

Which of the quadratic functions has the narrowest graph?

topjm [15]

A quadratic function's graph being wide or narrow is determined or depended on a-term:

$\large{y = a {x}^{2} + bx + c}$

If |a| has a lot of value, for example a = 2 or a = 100. The graph will get narrower if increasing the value of |a|. On the other hand, If |a| has small value, for example a = 1/2 or a = 1/10000. The graph would be wide.

Also it does not matter if a-term is negative or not since a-term being positive or negative determines if a parabola is upward or downward. Only |a| determines how narrow/wide the graph is.

From the question, it is clear that the parabola y = 2x^2 is the narrowest graph since it has the highest |a| value out of all choices.

Answer