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Basile [38]
3 years ago
14

How to find the zeros of f(x)=5(2x-5)(5x+4)

Mathematics
2 answers:
Elenna [48]3 years ago
3 0
If xy=0 we assume x and y equal 0

so

the zeros are wehre f(x)=0
0=5(2x-5)(5x+4)
set each to zero
5 is not equal 0 so we don't do that

0=2x-5
5=2x
5/2=x

0=5x+4
-4=5x
-4/5=x

zeroes at x=5/2 and -4/5
e-lub [12.9K]3 years ago
3 0
5(2x-5)(5x+4) = 0

2x-5 = 0
2x = 5
x = 5/2 (Answer)

5x+4 = 0
5x = -4
x = -4/5 (Answer)
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P-23=-3
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2 years ago
In ΔDEF,{EF}\cong{DE} EF ≅ DE and m∠E = 104°. Find m∠D.
Alexeev081 [22]

The 3 inside angles need to equal 180.

Subtract E from 180 to find the sum of the other two angles:

180 - 104 = 76

Now because EF ≅ DE , angle D and F would be the same so divide 76 by 2

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7 0
3 years ago
Gabriel invested $900 in an account paying an interest rate of 3 1/4 % compounded daily. Daniel invested $900 in an account payi
Helen [10]

Answer:

$40

Step-by-step explanation:

The earnings of Gabriel can be calculated with the formula:

P = Po * (1 + r/n)^(nt)

Where P = 900, r = 0.0325, n = 365 and t = 19

So we have:

P = 900 * (1 + 0.0325/365)^(365*19) = $1,668.81

The earnings of Daniel can be calculated with the formula:

P = Po * e^(rt)

Where Po = 900, r = 0.03375 and t = 19

So we have:

P = 900 * e^(0.03375*19) = $1,708.97

So the amount that Daniel will have more than Gabriel is:

1708.97 - 1668.81 = $40.16

Rounding to nearest dollar, the difference is $40

3 0
3 years ago
If a sample of 77 students were taken from a population of 950 students, o^2 could refer to the variance of how many of the stud
MAVERICK [17]
<span>variance of </span>950 students
4 0
3 years ago
Read 2 more answers
I do not understand
Vanyuwa [196]

\huge \sf༆ Answer ༄

Here's the solution ~

  • \sf \dfrac{5 {}^{6} }{5 {}^{1} }

  • \sf 5 {}^{6 - 1}

  • \sf {5}^{5}

8 0
2 years ago
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