7x / 8 = 21
7x = 8*21
x = 24
Answer:
x²+y²=36
Step-by-step explanation:
any circle with center at (0,0)
has the equation of the form
x²+y²=r²
here r is radius r=6
so the answer
compare the triangles ΔABC and ΔBCD
∡ABC = ∡BCD (given)
AB = CD (given)
BC = BC (common) } = > (SAS) ΔABC ≡ ΔBCD = > AC = BD
Answer:
x = - 5
Step-by-step explanation:
3x - 3 - 6x = 12
group like terms
3x - 6x - 3 = 12
add similar elements
- 3x - 3 = 12
add 3 to both sides
- 3x - 3 + 3 = 12 + 3
simplify
- 3x = 15
divide both sides by 3
- 3x / 5 = 15 / - 3
simplify
x = - 5
Answer:
21 is answer
Step-by-step explanation:
Find the value of expression the a3−3a2+5a−7 by substituting a=3.