Answer:
4,4
Step-by-step explanation:
80×5,5%
80/1×5,5/100
4/1×5,5/5
22/5 = 4 2/5
4 2/5 = 4 4/10 = 44/10 = 4,4
Answer:
surface area of cylinder= 2πrh + 2πr²
2×22/7×1×8+2×22/7×1×1
<u>352</u><u>.</u> + <u>4</u><u>4</u>
7. 7
= 50.3 + 6.25
= 56.55cm²
Answer: z=67-at
————
a-45
<span>Phil and Matt made cookies for a fundraiser at their high school. Phil worked more than Matt. Phil production was 25% more than Matt production. Matt was behind on the quantity made by Phil. The cookies sold for $0.25 each. After the sale, 20% of the combined production of their cookies remained.</span>
The answer:
first of all, we should know that the expression of a vector V (a, b) can be written as follow:
V = r (Vx i + Vyj), where r is the length of the vector, it is r = sqrt(V²x + V²y)
Vx is the component lying on the x-axis and Vy on the y-axis
<span>v ⃗ lies in Quadrant II, means Vx is less than 0 (negative)
</span>
so Vx= -r sin30° and Vy= rcos30°
r= <span>‖v ⃗ ‖=4√3
</span>
so we have v = - 4√3sin30° i + 4√3 cos30° j
the components are
v(- 4√3sin30°, 4√3 cos30°) = (-2√3, 4√3 cos30°)
