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calibaby1220
30.01.2020 •
Mathematics
How many zero pairs must be added to the function f(x) = x2 – 10x – 4 in order to begin writing the function in vertex form?
4
10
21
25
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Ответ:
f(x) + 4 = x² - 10x
Now, half of coefficient of x, -10x/2 = -5x
-5² = 25
We can also solve it further (in case you need):
Then,f(x) + 4 + 25 = (x² - 10x + 25)
f(x) + 29 = (x - 5)²
f(x) = (x - 5)² - 29
In short, Your Answer would be Option D) 25
Hope this helps!
Ответ:
Step-by-step explanation:
It is given that,
The sun produces
of radiant energy per second.
We need to find how many ergs of radiant energy does the sun produce in
.
Energy produced in 1 seconds =![\dfrac{1}{3.9\times 10^{33}}\ \text{ergs}](/tpl/images/0823/3046/ee510.png)
In
, energy produced is :
Hence, the radiant energy produced in 1 second is
.