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Xelga [282]
3 years ago
7

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. 2a2 − 30a + 108 = 0

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
8 0
The quadratic formula is
- b +  -  \sqrt{ {b}^{2} - 4ac }  \div 2a
A = 2
B = -30
C = 108
plug in the values for the equation and you'll get what the factors are

-(-30)+√(-30)²-4(2)(108))/2(2)

and

-(-30)-√(-30)²-4(2)(108))/2(2)
This will give you your A values
and just round the answers from both of the above equations
il63 [147K]3 years ago
3 0

Two real solutions:


a =(15+√9)/2=(15+3)/2= 9.000


or:


a =(15-√9)/2=(15-3)/2= 6.000



Two solutions were found :

a = 9

a = 6


Processing ends successfully!!!!






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7 0
3 years ago
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natita [175]
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3 years ago
a line with a slope of 1 passes through the point (5,10). what is the equation in this slope-intercept form?
patriot [66]

Answer:

y=x+5

Step-by-step explanation:

So first you need to plug everything into the point-slope formula which is

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So once you plug it in it should look like this: y-10=1(x-5)

Now you solve it

First you need to distribute 1 in 1(x-5) which is (x-5)

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8 0
3 years ago
what number must be added to 3 and 8 so that the ratio of the first number to the second number is equal to 3 :4​
Grace [21]
The answer is 12.
Steps
If that number is x
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"Cross multply"
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x=12
To check: add 12 to 3 and 8. 3+12=15 and 8+12=20. 15/20=3/4
3 0
3 years ago
If g(x)= x+1/x-2 and h(x)= 4-x, what is the value of (g•h)(-3)?
jek_recluse [69]

Answer:

8/5

Step-by-step explanation:

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Then take this result and find g(h(-3)) = g(7)

g(7) = (7+1)/( 7-2) = 8/5

8 0
3 years ago
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