Answer:
x
=
6
,
−
5
Step-by-step explanation:
Move x
to the left side of the equation by subtracting it from both sides. x^
2
−
30
−
x
=
0
x2-30-x=0
Use the quadratic formula to find the solutions.
−
b
±
√
b
2
−
4
(
a
c
)/
2
a
-b±b2-4(ac)/2a
Substitute the values
a
=
1 , b
=
−
1 , and c
=
−
30
into the quadratic formula and solve for x
x
.
1
±
√
(
−
1
)
2
−
4
⋅
(
1
⋅
−
30
)/
2
⋅
1
Simplify.
x
=
1
±
11/
2
The final answer is the combination of both solutions.
x
=
6
,
−
5
Answer:
95 %
Step-by-step explanation:
95 + 71 + 69 + 84 + 83 / 5 = 80.4
Answer:
5
Step-by-step explanation:
To write it in standard form, we set the equation equal to 0. To do this, we add 6 to each side:
-6+6 = x² + 4x - 1 + 6
0 = x² + 4x + 5
The related function is
y = x² + 4x + 5
The value of c in this function is 5.
- The <u>relationship</u> between <em>absorbance and concentration is known as the </em><em>Beer-Lambert Law</em><em>.</em>
- This <u>relationship</u> is linear, meaning that <em>absorbance is directly proportional to concentration</em>.
- The <u>absorbance</u><u> of a </u><u>solution</u> is directly <em>proportional to the concentration of the </em><em>light-absorbing</em><em> species</em> in the solution.
<h3>The Relationship Between Absorbance and Concentration</h3>
As the concentration of a light-absorbing species in a solution increases, the absorbance of the solution also increases. <u>This relationship is known as the </u><u>Beer-Lambert Law</u><u>. </u>
- The Beer-Lambert Law states that absorbance is directly proportional to concentration. This means that as the concentration of a light-absorbing species in a solution increases, the absorbance of the solution also increases.
- This relationship is linear, meaning that there is a direct relationship between absorbance and concentration.
- The absorbance of a solution is directly proportional to the concentration of the light-absorbing species in the solution.
Learn more about Mathematical relationship: brainly.com/question/25638609
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B=9
Explanation:
Multiply everything by 3 to get rid of the fraction. The new equation is 2b +15 = 60 -3b. Next, add three b to 2b and subtract 15 from 60. New equation is 5b = 45. Divide both sides by 5. B = 9.
