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1. 4^2+3^2=5^2

16+9=25

=5

2. a=17.5

3.c=25

Step-by-step explanation:

2. explanation

a^2+b^2=c^2

With this the equation we have to use is this-

c^2+b^2=a^2

So-

15^2+9^2=a^2

(15*15)+(9*9)=(a*a)

225+81=a^2

306=a^2

means finding the number times itself equals 306

=17.492≈17.5

a=17.5

3. explanation

7^2+24^2=c^2

49+576=c^2

625=c^2

=25

c=25

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

answer: can you show the options ?

step-by-step explanation: