A^2 + b^2 = c^2
C is your hypotenuse or the longest side of the triangle; you plug in your values and solve for the missing side:
15^2 + b^2 = 17^2
225 + b^2 = 289
*-225 on both sides to get b by itself*
B^2 = 64
*to get rid of the ^2; you take the square root*
B = sqrt 64
B= 8 <— final answer
21
Step-by-step explanation:
because
7b
=7 × b
=7 × 3(b=3)
=21
Answer:
x=1
Step-by-step explanation:
To solve, we need to get x by itself. To do this, preform the opposite of what is being done to the equation, and everything that is done to one side, must be done to the other.
5(2x-8)+15= -15
First, subtract 15 from both sides, since 15 is being added
5(2x-8)+15-15=-15-15
5(2x-8)=-30
Next, divide both sides by 5 since 5 is being multiplied
5(2x-8)/5= -30/5
2x-8= -6
Add 8 to both sides, since 8 is being subtracted
2x-8+8= -6+8
2x= 2
Divide both sides by 2, since 2 is being multiplied
2x/2= 2/2
x=1
Um i can help but are they all separate or
