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Tatiana [17]
3 years ago
13

D%7B1%20%2B%20tan%20%5Calpha%20%7D%20" id="TexFormula1" title=" \frac{cot \alpha }{1 + cot \alpha } = \frac{1}{1 + tan \alpha } " alt=" \frac{cot \alpha }{1 + cot \alpha } = \frac{1}{1 + tan \alpha } " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
strojnjashka [21]3 years ago
8 0
Im not sure what its asking.. whats the question?
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QF Q5.) Estimate the age of the paintings.
nikdorinn [45]
A=A₀e^{0.000121t}
A/A₀=24%=0.24
0.24=e^{0.000121t}
0.000121t=ln(0.24)
t=ln(0.24)/0.000121
=-11794.35
so painting is 11794 years old
8 0
4 years ago
Which of the following inequalities is false?
OLga [1]
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3 years ago
Need to understand range​
mojhsa [17]

Answer:

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6 0
4 years ago
Evaluate the expression: a(b – c) if a = -8, b = 12, and c = 4
Mariana [72]
<span>a(b – c)
= -8(12 - 4)
= -8(8)
= -64

</span>
3 0
4 years ago
Read 2 more answers
2 x^4 "-13x^3" +19x^2 +5x +1 = (x-4)(Ax+1)(x^2 +Bx +1) +C is true for all the values of x ; Find the values of A, B and C
trapecia [35]

Answer:

A=2

B=-3

C=-5

Step-by-step explanation:

The highiest coefficient in degree of the polynomial is 2 on the left and 1*A*1,

<u>A=2</u>

Let's make the synthetical division:

\boxed{A=2}\\\begin{array}{c|c|c|c|c|c}&x^4&x^3&x^2&x&1\\---&---&---&---&---&---\\&2&-13&19&5&1\\x=4&&8&-20&-4&4\\&2&-5&-1&1&-5\Longrightarrow \boxed{C=-5}\\x=-\frac{1}{2}&-1&3&-1&\\2&-6&2&&\\---&---&---&---&---&---\\\end {array}\\\\\\\boxed{2x^4-13x^3+19x^2+5x+1=(x-4)(2x+1)(x^2-3x+1)-5}\\\\\\\boxed{B=-3}\\

6 0
3 years ago
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