Answer:
12.65
Step-by-step explanation:
The equation for the distance between two points is √((x2-x1)²+(y2-y1)²)
Lets plug in our points to get:
√((-5+1)²+(6+6)²)
√((-4)²+(12)²)
√(16+144)
√160
using a calculator we get the answer 12.65
Answer:
Step-by-step explanation:
we are given that these two fractions are equal. however, 20/r is just given in numerators and denominators that are four times as large, even though it is still equal to 5/7. we can tell this because 20 is 4 times larger than 5, which means that R must be 4 times larger than 7, right? YES. so we take 7*4 to get 28.
The answer is 68°
step by step :
Answer:
m∠CBD=68°
Step-by-step explanation:
BA is perpendicular to BD, meaning they form a right angle (90°)
This means m∠CBD + m∠ABC=90, or they are supplementary.
We have expressions given for these angles, so
4x+52+8x-10=90
12x+42=90
12x=48
x=4
Knowing x=4, we can substitute back into our expression for m∠CBD because that's what we're looking for.
4(4)+52=68
m∠CBD is 68°.
