Find the distance between points (30, 24) and (1, 21). round to the nearest hundredth if necessary.

The distance between (30,24) and (1,21) is about 29.15 units

Step-by-step explanation: It may help to sketch the points on a graph to see where they are, and get an idea of the shape of the right triangle that would be formed. The distance between the points is the hypotenuse of the triangle, so the Pythagorean Theorem will solve for the distance.

a² + b² = c²

24-21= 3    30-1=29  These are the lengths of sides a & b

3² = 9   29²= 841    9 + 841 = 850 The square root of 850 will be the length of side c, the hypotenuse.

 Round to the nearest hundredth:  29.15

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7