This can be
solve using sine law, first solve the angle created at the steeple, x
X = 180 – 40 –
32
X = 108 degrees
Solve one side,
opposite to 32 degree angle, side a
Sine law:
Sin ( 32 ) / a =
sin ( 108) / 50
Solve for a
a = 27.86 m
then
sin (40) = h /
27.86
solve for h
<span>h = 17.91 m high
is the steeple</span>
Answer:
66 cm (Option B)
Step-by-step explanation:
The formula for the circumference of a circle is C = 2πr, so plug the values into the formula. The radius, (r) of a circle is one half of the diameter, so split 21 is half to get a radius of 10.5. Use 3.14 for π.
C = 2πr
C = 2(3.14)(10.5)
C = 6.28 × 10.5
C = 65.94
Rounded to the nearest unit, you get a answer of 66 cm.
Hope this helps! :)
A half times a half is a quarter. You can think of it this way: 1/2 is equivalent to 0.5, so you do 0.5 times 0.5 which is 0.25.(answer)
Answer:
The answer is 75 tests for 150 people.
Step-by-step explanation:
Firstly, with 150 people, we can divide into 15 groups; and the probability of disease is 0.04, there are 6 persons who possibly get disease.
Therefor, the maximum number of groups with an individual getting disease is 6. Then, 6 * 11 tests = 66 tests required.
15 groups - 6 groups with disease = 9 groups of negative with 9 tests.
In conclusion, there are 75 tests required.
This is a linear equation in x.
x + 6 = 2x-7
Adding -2x to both sides we obtain,
x +6 - 2x = -7
Now let's again add -6 to both sides of the equation, This implies that:
x-2x = -7-6
Let us simplify further to obtain,
-x = - 13
Let's multiply through by -1 to obtain
x = 13
CHECK
13 +6 = 2(13) - 7
13 + 6 = 26 -7
19 = 17