The general form of a quadratic equation is that which is expressed in a form,
ax² + bx + c = 0
To write the equation in its general form, eliminate the decimal by multiplying the equation by 10. It now becomes,
3x² + 50x - 70 = 0
The value of b is therefore 50 and the answer is the second choice.
4=2/7x
(7)4=2/7x(7)
28=2x
— —
2. 2
14=x
x=14
Answer:
6,861 cm³
Step-by-step explanation:
First, find the volume of of the cylinder, the formula fr a cylinder is π·r²·h
π·9²·15≈3,817
Then, find the volume of the cone, 1/3(πr²)(h)
π·9²·12≈3,054
Finally, add them together to get ≈6,861 cm³
Answer:
a.7(6xy-2z)
=7*6xy-7*2z
=42xy-14z
b.5(2w+3)-6(w+2)
=5*2w+5*3-6*w-6*2
=10w+15-6w-12
=4w+3
c.2f(2f+g-3)
=2f*2f+2f*g-2f*3
=4f^2+2fg-6f
Step-by-step explanation:
Where's the graph ? I will answer once I see the graph
