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zzz [600]
3 years ago
15

A man is four times as old as his daughter.in five years time, the square of his age will exceed the square of his daughter's ag

e by 120 years. find the daughter's age​
Mathematics
1 answer:
77julia77 [94]3 years ago
6 0
I just worked it out but it got deleted
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Find the value of x in the given triangle if the measure of angle 2 is x + 82.
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3 years ago
Find the polar equation for the cartesian curve x^2-y^2 = sqrt(x^2+y^2)
cestrela7 [59]

ANSWER:

r = \frac{1}{cos2(theta)}

Explaination:

Convert the given curve into the the polar form.

x = rcosθ

y = rsinθ

in f(x,y) = (x²-y²) - √(x²+y²) = 0

put the values of x & y in given curve equation.

We get at,

g(r,θ) = (r²cos²θ - r²sin²θ) - √(r²cos²θ + r²sin²θ) = 0

g(r,θ) = r²(cos²θ - sin²θ) - √r² = 0

We know that,

cos²θ - sin²θ = cos2θ

g(r,θ) = r²(cos2θ) - r = 0

Solve for r

Finally we get:

r = \frac{1}{cos2(theta)}

8 0
3 years ago
I'm Begging for somebody to do this worksheet. I can mark you brainiest and you will earn 15 points just please anybody? AND SAY
ser-zykov [4K]
(2) 2x
Bc you’re adding the imaginary one infront of the x.

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I hope this helps ;)

Mark me brainliest please! ;D
5 0
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The chorus has 30 members. What expression represents the number of ways a group of 6 members can be chosen to do a special perf
RoseWind [281]
The problem uses the concept of Combination where there are number of members chosen from a group and there order is not important. Thus, the expression that would best describe the given above is 30C6 which means the combination of 30 taken 6. The numerical value for this is 593775. 
8 0
3 years ago
Read 2 more answers
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