The common multiple of 30 and 42 is 210
Answer:
P = 72 ft
Step-by-step explanation:
the perimeter P is the sum of the 3 sides.
Tangents to a circle from an external point are congruent , then
side 24 = 15 + 9
side 21 = 9 + 12
Third side = 12 + 15 = 27 ft
P = 24 + 21 + 27 = 72 ft
In English: calculate the value of x (if it exists) satisfies the equation the absolute value here if there is no value of x satisfies.give your reasons: 2[3x-8] = 10
Talking about absolute value, that is about the module. Apparently the sign "[]" module mark "| |". Let's remember what is a module: |X|=X if X>0 or X=0and |X|=-X if X<0.The module requires two solutions.
2|3x-8| = 10 divide the equation by 2.|3x-8| =5
get the two systems
1.1) 3x-8>0 or 3x-8=01.2) 3x-8=5
2.1) 3x-8<0 2.2) -3x+8=5
Solved:1.1) 3x-8>0 or 3x-8=0X>2 and 2/3 or X=2 and 2/3 ------ the first condition
1.2) 3x=13x=4 and 1/3 -------- the second condition
Solution 1: x=4 and 1/3
2.1) 3x-8<0 2.2) -3x+8=5
2.1) 3x-8<0 X<2 and 2/3 ------ the first condition
2.2) -3x=-3x=1 -------- the second condition
Solution 2: x=1.
Obyedinenie decisions system 1 and system 2.
General answer: x1=4 1/3 ; x2=1
We can write a proportion: 15 m is to 12 m as some other height
is to 20 m
So we get
So the second tree is 25 m tall.
Answer:
2
Step-by-step explanation:
The best mechanical advantage you can get is obtained by pushing the door at its edge. If the door's center of mass is halfway from the hinge to the edge, then the advantage you get (in terms of force reduction) is ...
1/(1/2) = 2