Plz help me with this assignment! I need help asap!
2 answers:
Answer:
(a) 1.21 (b) 0.52
Step-by-step explanation:
Answer:
3). 1.21
4). 0.57
Step-by-step explanation:
Quarter = 25 cents
Nickel = 5 cents
Penny = 1 cent
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Answer:
(4,7.5)
Step-by-step explanation:
Reflect (-4,7.5) at the y-axis
7,943,670,217,666,519,002
It is m + 9 because if we let m = 60 and the lest was 9 minutes longer than m, the test would be 69 minutes long. Therefore the answer is m + 9
![\displaystylef(x)=\int_{0}^{x^2}\sec^2(\sqrt{x})dx \\=\int_{0}^{\sqrt{x^2}}\sec^2(u)\cdot2udu \\=2\int_{0}^{\sqrt{x^2}}\sec^2(u)du \\=2\Big[u\tan(u)-\int\tan(u)du\Big]_{0}^{\sqrt{x^2}} \\=2\Big[u\tan(u)+\ln\Big(\mathrm{abs}(\cos(u))\Big)\Big]_0^x \\=2\Big(x\tan(x)+\dfrac{1}{2}\ln\Big(\cos^2(x)\Big)\Big) \\=2x\tan(x)+\ln(\cos^2(x))](https://tex.z-dn.net/?f=%3C%2Fp%3E%3Cp%3E%5Cdisplaystyle%3C%2Fp%3E%3Cp%3Ef%28x%29%3D%5Cint_%7B0%7D%5E%7Bx%5E2%7D%5Csec%5E2%28%5Csqrt%7Bx%7D%29dx%20%5C%5C%3C%2Fp%3E%3Cp%3E%3D%5Cint_%7B0%7D%5E%7B%5Csqrt%7Bx%5E2%7D%7D%5Csec%5E2%28u%29%5Ccdot2udu%20%5C%5C%3C%2Fp%3E%3Cp%3E%3D2%5Cint_%7B0%7D%5E%7B%5Csqrt%7Bx%5E2%7D%7D%5Csec%5E2%28u%29du%20%5C%5C%3C%2Fp%3E%3Cp%3E%3D2%5CBig%5Bu%5Ctan%28u%29-%5Cint%5Ctan%28u%29du%5CBig%5D_%7B0%7D%5E%7B%5Csqrt%7Bx%5E2%7D%7D%20%5C%5C%3C%2Fp%3E%3Cp%3E%3D2%5CBig%5Bu%5Ctan%28u%29%2B%5Cln%5CBig%28%5Cmathrm%7Babs%7D%28%5Ccos%28u%29%29%5CBig%29%5CBig%5D_0%5Ex%20%5C%5C%3C%2Fp%3E%3Cp%3E%3D2%5CBig%28x%5Ctan%28x%29%2B%5Cdfrac%7B1%7D%7B2%7D%5Cln%5CBig%28%5Ccos%5E2%28x%29%5CBig%29%5CBig%29%20%5C%5C%3C%2Fp%3E%3Cp%3E%3D2x%5Ctan%28x%29%2B%5Cln%28%5Ccos%5E2%28x%29%29%3C%2Fp%3E%3Cp%3E)
Hope this helps.
