Answer:
The height of the cloud cover is 441.66 meters
Step-by-step explanation:
Distance = 560 m
The height of the cloud cover = h meters
According to the diagram, the worker stands at point R,
Let RT = x
tan 45⁰ =
= ![\frac{h}{x}](https://tex.z-dn.net/?f=%5Cfrac%7Bh%7D%7Bx%7D)
therefore, 1 =
, h = x
Then tan 75⁰ =
, substituting x = h, we have
3.732 = ![\frac{h}{560-h}](https://tex.z-dn.net/?f=%5Cfrac%7Bh%7D%7B560-h%7D)
3.732(560 - h) = h
3.732 × 560 = 3.732h + h
2089.92 = 4.732h
h = 441.66 m
The total number of nails will decrease by 14 when Willa will use 7 nails on each side.
Step-by-step explanation:
Sides of one birdhouse = 7
Nails used on each side = 9
Nails used on one birdhouse = No. of sides * Nails used for each side
Nails used on one birdhouse = 7*9 = 63 nails
If she uses 7 nails on each side, then the number of nails used on each birdhouse will be;
No. of nails = 7*7 = 49 nails
Difference = Old value - New value
Difference = 63-49 = 14
The total number of nails will decrease by 14 when Willa will use 7 nails on each side.
Keywords: multiplication, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Answer:
11/15 or .733
Step-by-step explanation:
What you need to do is minus the two fraction problems.
5/6-1/10. You need to make it where they have the same denominator.
25/30-3/30=22/30=11/15=.733.
11/15 or .733 is your answer.
Answer:
14) b
15) a
16) b
17) b
Step-by-step explanation: