Answer:
I think you mean significant figures
Step-by-step explanation:
- 46000
- 32000
- 560000
- 14000
Answer:
Step-by-step explanation:
slope of line through A ,B is
m=(-2-6)/(5-2)=-8/3
slope of line perpendicular to AB Is 3/8
mid-point of AB =((2+5)/2,(6-2)/2)=(7/2,2)
eq. of reqd line is
y-2=3/8(x-7/2)
8y-16=3x-21/2
16y-32=6x-21
16y-6x=-21+32
16y-6x=11
Answer:
Slope is -2
Step-by-step explanation:
(y2-y1) / (x2-x1)
(6-10) / (-10+12) = (-4)/(2) = <u>-2</u>
<span> we know the length of the cable is 9m.
That means the magnitude of </span><span><span>r<span><span><span>AB</span></span><span></span></span></span>=9</span><span>m.
The unit vector, denoted u, is each of </span><span>r<span><span><span>AB</span></span><span></span></span></span><span> divided by the magnitude.
</span>u=<span>(<span><span>x/9</span><span></span></span>i−<span>y/9<span></span></span>j−<span>z/9<span></span></span>k<span>)
</span></span><span>We can also figure out the unit vector of F.
</span>u=(350i - 250j - 450k)/√(350² +(-250)² +(-450)²)
u=0.562i−0.401j−0.723<span>k
</span>
<span>Force F is directed from point A to B, then both unit vectors must be equal.
Therefore
</span>(x/9i−y/9j−z/9k)=0.562i−0.401j−0.723k
<span>We can now solve for each term
x/9=0.562----- > x=5.058 m
-y/9=-0.401--------- > y=3.609 m
-z/9=-0.723------- > z=6.507 m
The answer is
the coordinates of point a
(5.058,3.609,6.507)
</span>
X = necklaces, y = bracelets
at least twice as many bracelets as necklaces
y > = 2x <===
x > 0 <===
half hour for necklace, 1 hr for bracelet...fewer then 20 hrs
0.5x + y < 20 <==
