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Luden [163]
2 years ago
5

Consider the quadratic function f(x)= 9x^2+30x+25=0

Mathematics
1 answer:
Alchen [17]2 years ago
4 0

Answer:

D) 0

There is 1 real solution.

Step-by-step explanation:

Hi there!

f(x)= 9x^2+30x+25=0

This is written in standard form:

f(x)=ax^2+bx+c

This means:

a=9

b=30

c=25

The discriminant states:

D=b^2-4ac

If D>0, there are 2 real solutions.

If D=0, there is 1 real solution.

If D<0, there are 2 complex solutions.

Plug in the values:

D=30^2-4(9)(25)\\D=0

Therefore, there is 1 real solution.

I hope this helps!

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Explanation
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2 years ago
Solve each inequality. <br> 8x-6 &gt; 10
myrzilka [38]

Answer:

The answer to this inequality would be x>2

3 0
2 years ago
Find the greatest common factor!<br> Please help with these 2 questions
Aleksandr-060686 [28]

Hello!

The greatest common factor (GCF) is self explanatory. We find the factors of each number, and find the largest ones that are in common

12: 1,12,2,6,3,4

33:1,33,3,11,

As you can see, the greatest number these two have in common is 3.

Now for the next set.

45: 1,45,3,15,5,9

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As you can see, our GCF is 5.

Therefore, our answers are below.

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I hope this helps!

5 0
3 years ago
Read 2 more answers
Xyz are in 3:3:6.what are the measures of the angles
Anni [7]
Answer:

Set up an equation equal to <span>180o</span>

Explanation:

<span>3x+3x+6x=180</span>

<span>12x=180</span>

<span>x=<span>18012</span>=15</span>

So, the measure of the angles are:

<span>3x=3×15=45</span>
<span>3x=3×15=45</span>
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6 0
3 years ago
A salesperson is paid $140 per week plus 10% commission on her weekly sales of x dollars. Find a linear function that represents
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Her weekly sales is X dollars

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Total commission is 0.10X ( 10% times weekly sales)

You then need to add that to her base pay of $140.

The equation is: w = 0.10x + 140

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3 years ago
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