Answer:
or
Step-by-step explanation:
-7,-3,1,5,... is a arithmetic sequence.
Arithmetic sequences have a common difference. That is, it is going up by 4 each time.
When you see arithmetic sequence, you should think linear equation.
The point-slope form of a line is .
m is the common difference, the slope.
Any they are using the point at x=1 in the point slope form. So they are using (1,-7).
So let's put this into our point-slope form:
Subtract 7 on both sides:
So your answer is
The port support for a window
air conditioning unit forms a triangle and an exterior angle. The sides are (
5x - 6) degreesand the other angle is 3x degrees and last angle is 90 degrees.
The su, of the interior
angles of the triangle is 180
( 5x - 6) + 3x + 90 = 180
X= 12, so the angles are 54
and 36
The exterior angle will also
form a 180 degree with the interior
Depending which exterior
angle
1. ) 180 – 54 = 126
2.) 180 – 36 = 144
<span>0.55−(0.9−0.8)⋅4
=</span><span>0.55 − 3.6 + 3.2
= 0.15</span>
Rational numbers are closed under addition ,multiplication but not closed under division
Rational number
Closure property
assume two rational numbers say x and y. the results of addition and multiplication operations give a rational number we can say that rational number are closed under addition and multiplication . For example
rational number are not closed under division as 1 and 0 are rational number but 1/0 is not defined but it is closed under addition and multiplication
that is 1+0 = 1 closed under addition
1*0 =0 closed under multiplication
but 1/0 is not defined so it is not closed under division
Hence Rational numbers are closed under addition ,multiplication but not closed under division
learn more of closure property here
brainly.com/question/28220649
#SPJ4