Answer:
The answer is 8
Step-by-step explanation:
if R is equal to 10, the you subtract 10-8 which is two and multiply by four.
Answer:
7.83 * 10^-7
Step-by-step explanation:
In order for the expression to be valid, you have to be working with a whole number, so you take 0.000000783 and make it 7.83
Count the amount of placement you just removed and take 10 and put it to the power of the number of placement you removed (10^7).
In this case you are making the number smaller instead of bigger so the exponent is negative.
If you were making 7.83 into, for example, 70,830,000 then the scientific notation would be 7.83 * 10^7. The exponent would be positive.
Hope this isn't confusing and you can understand it. Have a good day! :)
Height of the wall is 27 m.
<u>Explanation:</u>
Let the height of the wall = h
Length of the ladder = 9 m
Angle of elevation = 60°
Ladder rests at 9 m below a vertical wall.
So, length of the wall upto which the ladder rests = h - 9
We know,
Cos Ф = base/ hypotenuse
cos 60° = length of the ladder / height of wall upto which the ladder rests
So,
h - 9 = 18
h = 27
Therefore, height of the wall is 27 m
Answer:
x = 105
Step-by-step explanation:
The angles are corresponding angles and corresponding angles are equal if the lines are parallel
x = 105
Answer:
4/7
Step-by-step explanation:
The first time, the probability is 5/8. Then you remove one marble that is red (if you get a red one), so the probability is 4/7.
