Answer:
The y coordinate of point R is 
Step-by-step explanation:
we know that
The formula to calculate the midpoint between two points is equal to
In this problem
so
--->
--->
therefore
The y coordinate of point R is
Answer:
The answer to the system of equations is 4, -4
Answer:
unknown at the moment....
Step-by-step explanation:
I haven't worked out the answer myself but here are the steps to follow for you to find out the answer.
First step is to find the angle of 'A'. Do this by using the <em>cosine rule</em> on the smaller triangle.
Formula for this is;
cos(A) = <u>b2 + c2 – a2</u>
2bc
Second Step is to find the length between AC. Do this by using the <em>Sine Rule</em> on the large triangle as a whole.
Formula for this is;
<u> a </u> = <u> b </u> = <u> c </u>
Sin(A) Sin(B) Sin(C)
Label the large triangle as CA=b and CB=a
This is so you have the length and angles of all parts but the one section in which you're trying to find, this should be the basis of your sine formula but fill in the angle of 'A' which you found before.
<u> 65m </u> = <u> b </u>
Sin(A) Sin(68°)
now get 'b' by itself
<u> 65m (Sin(68°))</u> = b
Sin(A)
Third step. Now that you have the length of b or AC, minus the length 27m to find the length of CD.
Hope this helps :)
Divide 112 by the possible answers. If the answer comes out even it is a factor. If it comes out with a decimal it is not a factor:
112 / 2 = 56, so 2 is a factor.
112/3 = 37.333., 3 is not a factor.
112 /4 = 28, 4 is a factor.
112 / 6 = 18.66, 6 is not a factor.
112 / 7 = 16, 7 is a factor.
112/8 = 14, 8 is a factor.
The factors are: 2 , 4 ,7 and 8.
Answer:
C. 30
Step-by-step explanation:
15 men do work in 16 days
This means that 7.5 men (15/2) would do that same work in 32 days (16x2).
If the number of men increase, the amount of days decrease.
8 men would do that work in 30 days
8 men > 7.5 men
30 days < 32 days
