3 years ago

3a+2b=13. 5a-3b=9. simultaneous equations

Mathematics

2 answers:

Crazy boy [7]3 years ago

6 0

Answer:

a=3 , b=2

Step-by-step explanation:

Fofino [41]3 years ago

3 0

Answer:

a=3 and b=2

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Answer:

1. 10

2. 12

3. Sqrt 130

4. Sqrt 45

Step-by-step explanation:

To find the missing side of a right triangle, use the Pythagorean Theorem. The Pythagorean Theorem is $a^2+b^2=c^2$ where a and b are the legs with a being the smallest and c is the hypotenuse.

1. a=6, b=8, c=?

$6^2+8^2=c^2\\36+64=c^2\\100=c^2\\10=c$

2. a=5, b=?, c=13

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3. a=7, b=9, c=?

$7^2+9^2=c^2\\49+81=c^2\\130=c^2\\\sqrt{130}=c$

4. a=2, b=?, c=7

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3a+2b=13. 5a-3b=9. simultaneous equations​

3a+2b=13. 5a-3b=9. simultaneous equations