Answer:
-3,-4
-6,-1
Step-by-step explanation:
-3 + -4
-6 + -1
Answer:
B
Step-by-step explanation:
So we have the expression:
Since 5 goes into both 15 and 50, we can factor out a 5. First, rewrite the numbers as:
Factor out the 5:
So, our answer is B
And we're done!
Answer: Each peice of wood is equal to 0.625
Step-by-step explanation:
15/2 = 7.5
7.5/12 = 0.625
You have two 30-60-90 triangles, ADC and BDC.
The ratio of the lengths of the sides of a 30-60-90 triangle is
short leg : long leg : hypotenuse
1 : sqrt(3) : 2
Using triangle ADC, we can find length AC.
Using triangle BDC, we can find length BC.
Then AB = AC - BC
First, we find length AC.
Look at triangle ACD.
DC is the short leg opposite the 30-deg angle.
DC = 10sqrt(3)
AC = sqrt(3) * 10sqrt(3) = 3 * 10 = 30
Now, we find length BC.
Look at triangle BCD.
For triangle BCD, the long leg is DC and the short leg is BC.
BC = 10sqrt(3)/sqrt(3) = 10
AB = AC - BC = 30 - 10 = 20
I think the second i didnt make it on paper but its the one that more convence me
