Answer:
he purchased 12 pencils
Step-by-step explanation:
1.24x12=14.88
14.88-20= 5.12
also this kid i knew has the same pfp
Answer:
y = 3x + 6
Step-by-step explanation:
y = ax + b, and since we know the gradient =>
y = 3x + b
y(-1) = -3 + b = 3 => b = 6
(A) Find the value of x. Round to the nearest tenth of a degree<span>
Given that the distance of the ground is 9ft.
Length of the plank is 41 ft
In order to get the angle formed between the ground and the foot of the plank,
cos (theta) = ground / plank
cos (theta) = 9 / 41
</span><span>cos (theta) = 0.21951...
</span>theta = cos^-1(<span>0.21951...)
</span><span>theta = 77.3 degrees
</span><span>(b) Find the height above the ground where the plank touches the wall. Round to the nearest tenth of a foot.
</span><span>
Height = square root (plank^2 - ground^2)
Height = square root (41^2 - 8^2)
</span><span>Height = square root (1600)
</span><span>Height = 40
(A) 77.1 Degrees
(B) 40 feet</span>
Answer:
81.7 in (nearest tenth)
Step-by-step explanation:
Given:
Substituting given value into the formula:
Answer:
The third and fourth one
Step-by-step explanation:
Hii,
When you divide by a negative, the sign flips. In the third and fourth one you're dividing by a negative so the inequality sign flips. For the rest, you're not.
Hope this helps :)
