-312, 39 and 192 find the sum
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When 6 is subtracted from the square of a number, the result is 5 times the number, then the negative solution is -1
<h3><u>Solution:</u></h3>Given that when 6 is subtracted from the square of a number, the result is 5 times the number
To find: negative solution
Let "a" be the unknown number
Let us analyse the given sentence
square of a number =
6 is subtracted from the square of a number =
5 times the number =
<em><u>So we can frame a equation as:</u></em>
6 is subtracted from the square of a number = 5 times the number
<em><u>Let us solve the above quadratic equation</u></em>
For a quadratic equation where
Here in this problem,
Substituting the values in above quadratic formula, we get
We have two solutions for "a"
We have asked negative solution. So a = -1
Thus the negative solution is -1
Step-by-step explanation:
thats is all,just subject of formula
Answer:
<h2>3.6°</h2>Step-by-step explanation:
The question is incomplete. Here is the complete question.
Find the angle between the given vectors to the nearest tenth of a degree.
u = <8, 7>, v = <9, 7>
we will be using the formula below to calculate the angle between the two vectors;
is the angle between the two vectors.
u = 8i + 7j and v = 9i+7j
u*v = (8i + 7j )*(9i + 7j )
u*v = 8(9) + 7(7)
u*v = 72+49
u*v = 121
|u| = √8²+7²
|u| = √64+49
|u| = √113
|v| = √9²+7²
|v| = √81+49
|v| = √130
Substituting the values into the formula;
121= √113*√130 cos θ
cos θ = 121/121.20
cos θ = 0.998
θ = cos⁻¹0.998
θ = 3.6° (to nearest tenth)
Hence, the angle between the given vectors is 3.6°