Answer:
-18
Step-by-step explanation:
So you have to always add the ones with parentheses. I added (-6) + (-6) and I get the answer -12. Last but not least I add -12 + -6 to get -18
<span>(A) Find the approximate length of the plank. Round to the nearest tenth of a foot.
Given that the distance of the ground is 3ft.
In order to get the length of the plank,
we can use the this one.
cos 49 = ground / plank
cos 49 = 3 / plank
plank = cos 49 / 3
plank = 0.10 ft
</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>
The remaining angle is equal to
angle = 180 - (90+49)
angle = 41
Finding the height.
tan 41 = height / ground
tan 41 = height / 3
height = tan 41 / 3
height = 0.05 ft.
(A) 0.10 feet
(B) 0.05 feet</span>
The biker wants to sell a bike for $600 post mark up. You are trying to figure out the retail price as the store owner so that after the 55% mark up, the sale price is $600.
So to do so, take 600÷1.55 = $387.10.
Answer:
X= 29
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
Replace the variable in the expression
f (-2) = (-2)^2-10 x -2
f (
−
2
)
=
−
4
+
20
Add −
4 and 20
f (
−
2
)
=
16