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zheka24 [161]
2 years ago
12

Aaron is 1 year younger than Laura. The sum of their ages is 23 years. How old is each of them

Mathematics
2 answers:
gavmur [86]2 years ago
8 0

Answer:

11

Step-by-step explanation:

23-1=22

22/2=11

RUDIKE [14]2 years ago
7 0

Answer:

Aaron is 11 and Laura is 12

Step-by-step explanation:

Total age 23

divided by 2 = 11 with a remainder of 1

since Aaron is 1 year younger than Laura

add on the 1 to Laura's age

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Step-by-step explanation:

(a)

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\cos {B}.\frac{dB}{dA}=\sqrt{\frac{3}{2}}\cos A\\\\\frac{dB}{dA}=\sqrt{\frac{3}{2}}.\frac{\cos A}{\cos B}

b)

When A=\frac{\pi}{4},B=\frac{\pi}{3}, the value of \frac{dB}{dA} is,

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c)

In general, the linear approximation at x= a is,

f(x)=f'(x).(x-a)+f(a)

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At A=\frac{\pi}{4}

f(\frac{\pi}{4})=B=\sin^{-1}[\sqrt{\frac{3}{2}}\sin{\frac{\pi}{4}}]\\\\=\sin^{-1}[\sqrt{\frac{3}{2}}.\frac{1}{\sqrt{2}}]\\\\\=\sin^{-1}(\frac{\sqrt{2}}{2})\\\\=\frac{\pi}{3}

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d)

Use part (c), when A=46°, B is approximately,

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